--- doc/loncapafiles/updatequery.piml	2002/05/18 16:36:58	1.11
+++ doc/loncapafiles/updatequery.piml	2017/02/25 20:31:03	1.86
@@ -1,7 +1,6 @@
 <!-- updatequery.piml -->
-<!-- Scott Harrison -->
 
-<!-- $Id: updatequery.piml,v 1.11 2002/05/18 16:36:58 harris41 Exp $ -->
+<!-- $Id: updatequery.piml,v 1.86 2017/02/25 20:31:03 raeburn Exp $ -->
 
 <!--
 
@@ -34,6 +33,17 @@ http://www.lon-capa.org/
 <target dist='default'>/</target>
 <perlscript mode='fg'>
 $|=1;
+use strict;
+use lib '/home/httpd/lib/perl/';
+use LONCAPA::Configuration;
+use LONCAPA::Lond;
+use LONCAPA::SSL;
+use LONCAPA;
+use GDBM_File;
+use Storable qw(thaw);
+use Term::ReadKey;
+use Locale::Country;
+
   print(&lt;&lt;END);
 
 
@@ -48,26 +58,292 @@ $|=1;
 *********************************************
 
 END
-sleep(3);
+#sleep(3);
+
+sub get_static_config {
+# get LCperlvars from loncapa_apache.conf
+    my $confdir = '/etc/httpd/conf/';
+    if ('<DIST />' eq 'sles10' || '<DIST />' eq 'sles11' || '<DIST />' eq 'sles12' || '<DIST />' eq 'suse10.1' || '<DIST />' eq 'suse10.2' || '<DIST />' eq 'suse10.3' || '<DIST />' eq 'suse11.1' || '<DIST />' eq 'suse11.2' || '<DIST />' eq 'suse11.3' || '<DIST />' eq 'suse11.4' || '<DIST />' eq 'suse12.1' || '<DIST />' eq 'suse12.2' || '<DIST />' eq 'suse12.3' || '<DIST />' eq 'suse13.1' || '<DIST />' eq 'suse13.2' || '<DIST />' eq 'debian5' || '<DIST />' eq 'debian6' || '<DIST />' eq 'ubuntu6' || '<DIST />' eq 'ubuntu8' || '<DIST />' eq 'ubuntu10' || '<DIST />' eq 'ubuntu12' || '<DIST />' eq 'ubuntu14' || '<DIST />' eq 'ubuntu16') {
+        $confdir = '/etc/apache2/';
+    }
+    my $filename='loncapa_apache.conf';
+    my %LCperlvar;
+    if (-e "$confdir$filename") {
+        open(CONFIG,'&lt;'.$confdir.$filename) or die("Can't read $confdir$filename");
+        while (my $configline=&lt;CONFIG&gt;) {
+            if ($configline =~ /^[^\#]?PerlSetVar/) {
+                my ($unused,$varname,$varvalue)=split(/\s+/,$configline);
+                chomp($varvalue);
+                $LCperlvar{$varname}=$varvalue;
+            }
+        }
+        close(CONFIG);
+    }
+    return \%LCperlvar;
+}
+
+sub get_domain_config {
+    my ($dom,$primaryserver,$isprimary,$url,$perlvarref) = @_;
+    my %confhash;
+    if ($isprimary) {
+        if (ref($perlvarref) eq 'HASH') {
+            my $lonusersdir = $perlvarref-&gt;{'lonUsersDir'};
+            my $fname = $lonusersdir.'/'.$dom.'/configuration.db';
+            if (-e $fname) {
+                my $dbref=&LONCAPA::locking_hash_tie($fname,&GDBM_READER());
+                if (ref($dbref) eq 'HASH') {
+                    foreach my $key (sort(keys(%{$dbref}))) {
+                        my $value = $dbref->{$key};
+                        if ($value =~ s/^__FROZEN__//) {
+                            $value = thaw(&LONCAPA::unescape($value));
+                        } else {
+                            $value = &LONCAPA::unescape($value);
+                        }
+                        $confhash{$key} = $value;
+                    }
+                    &LONCAPA::locking_hash_untie($dbref);
+                }
+            }
+        }
+    } else {
+        if (open(PIPE,"wget --no-check-certificate '$url?primary=$primaryserver&format=raw' |")) {
+            my $config = '';
+            while (&lt;PIPE&gt;) {
+                $config .= $_;
+            }
+            close(PIPE);
+            if ($config) {
+                my @pairs=split(/\&/,$config);
+                foreach my $item (@pairs) {
+                    my ($key,$value)=split(/=/,$item,2);
+                    my $what = &LONCAPA::unescape($key);
+                    if ($value =~ s/^__FROZEN__//) {
+                        $value = thaw(&LONCAPA::unescape($value));
+                    } else {
+                        $value = &LONCAPA::unescape($value); 
+                    }
+                    $confhash{$what}=$value;
+                }
+            }
+        }
+    }
+    return (\%confhash);
+}
+
+sub make_passphrase {
+    my ($got_passwd,$firstpass,$secondpass,$passwd);
+    my $maxtries = 10;
+    my $trial = 0;
+    while ((!$got_passwd) && ($trial &lt; $maxtries)) {
+        $firstpass = &get_password('Enter password');
+        if (length($firstpass) &lt; 6) {
+            print('Password too short.'."\n".
+              'Please choose a password with at least six characters.'."\n".
+              'Please try again.'."\n");
+        } elsif (length($firstpass) &gt; 30) {
+            print('Password too long.'."\n".
+                  'Please choose a password with no more than thirty characters.'."\n".
+                  'Please try again.'."\n");
+        } else {
+            my $pbad=0;
+            foreach (split(//,$firstpass)) {if ((ord($_)&lt;32)||(ord($_)&gt;126)){$pbad=1;}}
+            if ($pbad) {
+                print('Password contains invalid characters.'."\n".
+                      'Password must consist of standard ASCII characters.'."\n".
+                      'Please try again.'."\n");
+            } else {
+                $secondpass = &get_password('Enter password a second time');
+                if ($firstpass eq $secondpass) {
+                    $got_passwd = 1;
+                    $passwd = $firstpass;
+                } else {
+                    print('Passwords did not match.'."\n".
+                          'Please try again.'."\n");
+                }
+            }
+        }
+        $trial ++;
+    }
+    return $passwd;
+}
+
+sub get_password {
+    my ($prompt) = @_;
+    local $| = 1;
+    print $prompt.': ';
+    my $newpasswd = '';
+    ReadMode 'raw';
+    my $key;
+    while(ord($key = ReadKey(0)) != 10) {
+        if(ord($key) == 127 || ord($key) == 8) {
+            chop($newpasswd);
+            print "\b \b";
+        } elsif(!ord($key) &lt; 32) {
+            $newpasswd .= $key;
+            print '*';
+        }
+    }
+    ReadMode 'normal';
+    print "\n";
+    return $newpasswd;
+}
+
+sub send_mail {
+    my ($hostname,$recipient,$subj,$file) = @_;
+    my $from = 'www@'.$hostname;
+    my $certmail = "To: $recipient\n".
+                   "From: $from\n".
+                   "Subject: ".$subj."\n".
+                   "Content-type: text/plain\; charset=UTF-8\n".
+                   "MIME-Version: 1.0\n\n";
+    if (open(my $fh,"&lt;$file")) {
+        while (&lt;$fh&gt;) {
+            $certmail .= $_;
+        }
+        close($fh);
+        $certmail .= "\n\n";
+        if (open(my $mailh, "|/usr/lib/sendmail -oi -t -odb")) {
+            print $mailh $certmail;
+            close($mailh);
+            print "Mail sent ($subj) to $recipient\n";
+        } else {
+            print "Sending mail ($subj) to $recipient failed.\n";
+        }
+    }
+    return;
+}
+
+</perlscript>
+</file>
+<file>
+<target dist='default'>../../loncom/hosts.tab</target>
+<perlscript mode='fg'>
+my $lonCluster;
+my $currCluster;
+
+if (-l "<TARGET />") {
+  my $currlink = readlink("<TARGET />");
+  if ($currlink =~ /^new_(existing|standalone|development|production)_hosts\.tab$/) {
+      $currCluster = $1;
+  }
+  my %clustertypes = (
+                       production  =&gt; 'PRODUCTION',
+                       standalone  =&gt; 'STAND-ALONE',
+                       development =&gt; 'DEVELOPMENT',
+                       existing    =&gt; 'RUNNING YOUR OWN CLUSTER',
+                     );
+  if (($currCluster) && (exists($clustertypes{$currCluster}))) {
+      print(&lt;&lt;END);
+
+The cluster type for this server is currently: $clustertypes{$currCluster}
+END
+
+  }
+}
+
+print(&lt;&lt;END);
+
+===============================================================================
+
+Which cluster option would you like to have installed?
+IMPORTANT: to take advantage of the cluster options 1) and 3),
+you must contact loncapa\@loncapa.org.
+
+1) PRODUCTION - you want to eventually connect this machine to the
+                LON-CAPA content sharing network. This setting is for
+                schools, colleges, and universities, that currently
+                are running - or in the future will run - courses.
+2) STAND-ALONE - you want this machine to run in 'stand-alone' mode and
+                 not be connected to other LON-CAPA machines for now.
+3) DEVELOPMENT - you want to do software (not content!) development with
+                 this workstation and eventually link it with the
+                 workstations of other LON-CAPA software developers.
+4) RUNNING YOUR OWN CLUSTER - this machine is not in the standard LON-CAPA
+                 clusters and won't be in the future and you want the existing
+                 hosts.tab and domain.tab files to be left alone.
+                 (This choice is unlikely what you want to select.)
+END
+# Option number 26 will install rawhide_hosts.tab, but
+# the typical user does not want to be part of an intensive
+# machine test cluster.
+
+# get input
+# if valid then process, otherwise loop
+my $flag=0;
+while (!$flag) {
+  print "ENTER 1, 2, 3, or 4:\n";
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice==1) {
+    $lonCluster='production'; $flag=1;
+  }
+  elsif ($choice==2) {
+    $lonCluster='standalone'; $flag=1;
+  }
+  elsif ($choice==3) {
+    $lonCluster='development'; $flag=1;
+  }
+  elsif ($choice==4) {
+    $lonCluster='existing'; $flag=1;
+    foreach my $file ('hosts.tab','dns_hosts.tab',
+                      'domain.tab','dns_domain.tab') {
+        if (-e '/home/httpd/lonTabs/'.$file) {
+	    `cp /home/httpd/lonTabs/$file ../existing_$file`;
+        }
+        else {
+	    print &lt;&lt;END;
+There is no existing /home/httpd/lonTabs/$file
+END
+            die('');
+        }
+    }
+  }
+  elsif ($choice==26) {
+    $lonCluster='rawhide'; $flag=1;
+  }
+}
 </perlscript>
 </file>
 <file>
 <target dist='default'>/home/httpd/lonTabs/hosts.tab</target>
 <perlscript mode='fg'>
 $|=1;
+my $domainDescription;
+my $domainTabExtras;
+my $primaryLibServer;
+my $protocol;
+my $intdom;
+my $desiredhostname;
+my $city;
+my $state;
+my $country;
+my @libservers = ();
 unless (-e "<TARGET />") {
   print(&lt;&lt;END);
            WELCOME TO LON-CAPA!
 
-If you have questions, please visit http://install.lon-capa.org
-or contact sharrison\@mail.lon-capa.org.
+If you have questions, please visit http://install.loncapa.org
+or contact helpdesk\@loncapa.org.
 
 ===============================================================================
-The following 4 values are needed to configure LON-CAPA:
+The following 10 values are needed to configure LON-CAPA:
 * Machine Role
 * LON-CAPA Domain Name
-* LON-CAPA Machine ID Name, and
-* System Administration E-mail Address.
+* LON-CAPA Machine ID Name
+* Server Administration E-mail Address
+* LON-CAPA Domain's Primary Library Server Machine ID
+* Web Server Protocol
+* Internet Domain Name of Your Institution
+* Hostname
+* City, State, Country for LON-CAPA SSL certificate 
+* Password for key for creating SSL certificates
+===============================================================================
+
+In addition, a Support E-mail Address can also be included. If
+an address is included then one of the options in the LON-CAPA 
+help menu will be a link to a form that a user will complete to
+request LON-CAPA help.  
+
 END
 
 open(OUT,'&gt;/tmp/loncapa_updatequery.out');
@@ -78,8 +354,8 @@ close(OUT);
 **** Machine Role ****
 Library server (recommended if first-time installation of LON-CAPA):
    Servers that are repositories of authoritative educational resources.
-   These servers also provide the construction space by which instructors
-   assemble their classroom online material.
+   These servers also provide the authoring spaces in which content
+   creators (e.g., faculty instructors) create their learning content.
 Access server:
    Servers that load-balance high-traffic delivery of educational resources
    over the world-wide web.
@@ -115,7 +391,7 @@ while (!$flag) {
 }
 
 # need to recommend a machine ID name (ipdomain.l.somenumber)
-my $hostname=`hostname`; chomp($hostname);
+my $hostname=`hostname -f`; chomp($hostname);
 my $ipdomain='';
 if ($hostname=~/([^\.]*)\.([^\.]*)$/) {
   $ipdomain=$1;
@@ -124,8 +400,26 @@ if ($hostname=~/([^\.]*)\.([^\.]*)$/) {
   print(&lt;&lt;END);
 
 **** Domain ****
-[this does NOT need to correspond to internet address domains,
- examples might be "msu" or "bionet" or "vermontcc"]
+[This does NOT need to correspond to an internet address domain.
+ Please make this name short AND descriptive of your organization.
+ Domain names are close to impossible to change later!!!
+ Good examples might be "msu" or "bionet" or "vermontcc".
+ Bad examples are "physics" (too general)
+   or "michiganstateuniversity" (too long)
+   or "msuedu" (just make it "msu", or else make it msu.edu)
+   or "msuphysics" (only if there is a good reason to limit to department
+                    - we don't know of one)
+   or "mydomain" (what is that?)
+ Avoid multiple domains at the same institution, even if it means that you 
+ have to actually work together with your colleagues. You can still run
+ multiple library servers within the same domain.
+ If this domain is eventually going to be part of the main production
+ cluster, you MUST contact the LON-CAPA group at MSU (loncapa\@loncapa.org)
+ to have a domain name assigned, and then use it exactly as given. This is
+ also true for test installs that might eventually turn into production setups.
+ The short domain name needs to be unique, if your aim is to join a cluster 
+ containing existing domains. Stop now if you have not yet contacted the 
+ MSU LON-CAPA group.] 
 END
 
 # get domain name
@@ -145,6 +439,15 @@ END
 }
   my $choice=&lt;&gt;;
   chomp($choice);
+  my $bad_domain_flag=0;
+  my @bad_domain_names=('res','raw','userfiles','priv','adm','uploaded',
+	'editupload');
+  foreach my $bad (@bad_domain_names) {
+    $bad_domain_flag=1 if $choice eq $bad;
+  }
+  if ($choice=~/capa/i) {
+     $bad_domain_flag=1;
+  }
   if ($ipdomain and $choice=~/^\s*$/) {
     $choice=$ipdomain;
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
@@ -152,17 +455,49 @@ END
     close(OUT);
     $lonDefDomain=$choice;
     $flag=1;
-  }
-  elsif ($choice!~/\_/ and $choice=~/^\w+$/) {
+  } elsif (length($choice)&gt;35) {
+    print "Name too long\n";
+  } elsif (length($choice)&lt;2) {
+    print "Name too short\n";
+  } elsif ($bad_domain_flag) {
+    print "Invalid input ('$choice' conflicts with LON-CAPA namespace).\n";
+    print "Please try something different than '$choice'\n";
+  } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
     print(OUT 'lonDefDomain'."\t".$choice."\n");
     close(OUT);
     $lonDefDomain=$choice;
     $r='l';
     $flag=1;
+  } else {
+    print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
+  }
+}
+
+# get domain description
+# accept if valid, if not valid, tell user and repeat
+$flag=0;
+
+while (!$flag) {
+  print(&lt;&lt;END);
+
+**** Domain Description ****
+String describing the domain, to be shown to users.
+[Example, msu is Michigan State University]
+ENTER DOMAIN DESCRIPTION:
+END
+
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice!~/:/) {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'domainDescription'."\t".$choice."\n");
+    close(OUT);
+    $domainDescription=$choice;
+    $flag=1;
   }
   else {
-    print "Invalid input (only alphanumeric characters supported).\n";
+    print "Invalid input (no ':' allowed).\n";
   }
 }
 
@@ -175,11 +510,12 @@ if ($lonDefDomain) {
   print(&lt;&lt;END);
 
 **** Machine ID Name ****
-[this does NOT need to correspond to internet address names;
+[This does NOT need to correspond to internet address names;
  this name MUST be unique to the whole LON-CAPA network;
- we recommend that you use a name based off of your institution;
- good examples: "msul1" or "bionetl1";
- bad examples: "loncapabox" or "studentsinside"]
+ we recommend that you use a name based off of your institution.
+ Good examples: "msul1" or "bioneta2".
+ Bad examples: "loncapabox" or "studentsinside".
+ Note that machine names are very hard to change later.]
 END
 # get machine name
 # accept if valid, if not valid, tell user and repeat
@@ -197,37 +533,100 @@ END
 }
   my $choice=&lt;&gt;;
   chomp($choice);
-  if ($lonHostID and $choice=~/^\s*$/) {
+  if ($choice=~/capa/i) {
+    print "Invalid input (names containing 'capa' are reserved).\n";
+  } elsif ($lonHostID and $choice=~/^\s*$/) {
     $choice=$lonHostID;
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
     print(OUT 'lonHostID'."\t".$choice."\n");
     close(OUT);
     $lonHostID=$choice;
     $flag=1;
-  }
-  elsif ($choice!~/\_/ and $choice=~/^\w+$/) {
+  } elsif (length($choice)&gt;45) {
+    print "Name too long\n";
+  } elsif (length($choice)&lt;4) {
+    print "Name too short\n";
+  } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
     open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
     print(OUT 'lonHostID'."\t".$choice."\n");
     close(OUT);
     $lonHostID=$choice;
     $flag=1;
-  }
-  else {
-    print "Invalid input (only alphanumeric characters supported).\n";
+  } else {
+    print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
   }
 }
 
-# get e-mail address
+# get primary library server in domain
+if ($lonRole eq 'library') {
+    if (!grep/^\Q$lonHostID\E$/,@libservers) {
+        push(@libservers,$lonHostID);
+    } 
+    if (@libservers == 1) {
+        $primaryLibServer = $libservers[0];
+    }
+}
+
+$flag=0;
+while (!$flag) {
+  print(&lt;&lt;END);
+**** Domain's Primary Library Server ID ****
+This should be the LON-CAPA machine ID of a library server in your 
+domain.  If you only have a single library server in your domain, then
+the Primary Library server ID will be the machine ID of that server. 
+This server will be where domain data which are not associated with any
+specific home library server will be stored (e.g., configurations that
+apply to all nodes in the domain).
+END
+    if (defined($primaryLibServer)) {
+        print(&lt;&lt;END);
+ENTER DOMAIN'S PRIMARY LIBRARY SERVER ID [$primaryLibServer]:
+END
+    } elsif (@libservers &gt; 0) {
+        print(&lt;&lt;END);
+ENTER DOMAIN'S PRIMARY LIBRARY SERVER ID [$libservers[0]]
+END
+    } else {
+        print (&lt;&lt;END);
+No library servers could be identified for this domain.  If you have already installed LON-CAPA on a different server (designated as a library server) in this domain, please enter the LONCAPA MACHINE ID of that server.  If not, you will need to install a LON-CAPA library server.  Enter the MACHINE ID of the server you plan to designate as a library server.
+END
+    }
+
+    my $choice=&lt;&gt;;
+    chomp($choice);
+    if ($primaryLibServer and $choice=~/^\s*$/) {
+        $choice=$primaryLibServer;
+        open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+        print(OUT 'primaryLibServer'."\t".$choice."\n");
+        close(OUT);
+        $flag=1;
+    } elsif (length($choice)&gt;35) {
+        print "Name too long\n";
+    } elsif (length($choice)&lt;4) {
+        print "Name too short\n";
+    } elsif ($choice!~/\_/ and $choice=~/^[\w\-.]+$/) {
+        open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+        print(OUT 'primaryLibServer'."\t".$choice."\n");
+        close(OUT);
+        $primaryLibServer=$choice;
+        $flag=1;
+    } else {
+        print "Invalid input (only alphanumeric characters, '-', and '.' supported).\n";
+    }
+}
+
+
+# get admin e-mail address
 # accept if valid, if not valid, tell user and repeat
 $flag=0;
 my $lonAdmEMail;
 while (!$flag) {
   print(&lt;&lt;END);
 
-**** System Administrator's E-mail ****
+**** Server Administrator's E-mail ****
 E-mail address of the person who will manage this machine
 [should be in the form somebody\@somewhere]
-ENTER E-MAIL ADDRESS:
+ENTER ADMIN E-MAIL ADDRESS:
 END
 
   my $choice=&lt;&gt;;
@@ -244,9 +643,431 @@ END
   }
 }
 
+
+# get support e-mail address
+# accept if valid, if not valid, tell user and repeat
+$flag=0;
+my $lonSupportEMail;
+while (!$flag) {
+  print(&lt;&lt;END);
+
+**** Support E-mail ****
+E-mail address of the person who will receive 
+help requests from LON-CAPA users who access 
+the system via this server. If the address is left blank,
+then a help support form will not be displayed 
+as part of the help menu.
+[should be in the form somebody\@somewhere]
+ENTER SUPPORT E-MAIL ADDRESS:
+END
+
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  $choice =~ s/\s//g;
+  if ( ($choice=~/\@/) || $choice eq '') {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'lonSupportEMail'."\t".$choice."\n");
+    close(OUT);
+    $lonSupportEMail=$choice;
+    $flag=1;
+  }
+  else {
+    print "Invalid input (this either needs to be blank, or look like an e-mail address!).\n";
+  }
+}
+
+# get protocol
+# accept if valid, if not valid, tell user and repeat
+$flag=0;
+while (!$flag) {
+  print(&lt;&lt;END);
+
+****  Web Server Protocol ****
+If you plan to run the Apache server with SSL enabled, 
+the protocol should be: https; otherwise it should be http.
+ENTER WEB SERVER PROTOCOL [http]:
+END
+
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice =~ /^https?$/) {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'protocol'."\t".$choice."\n");
+    close(OUT);
+    $protocol=$choice;
+    $flag=1;
+  } elsif ($choice eq '') {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'protocol'."\t".'http'."\n");
+    close(OUT);
+    $protocol = 'http';
+    $flag = 1;
+  } else {
+    print "Invalid input (only http or https allowed).\n";
+  }
+}
+
+# get internet domain
+# accept if valid, if not valid, tell user and repeat
+$flag=0;
+while (!$flag) {
+  print(&lt;&lt;END);
+
+****  Internet Domain Name of Your Institution ****
+
+The internet domain name used for servers at your institution 
+should be provided.  This will be similar to: ustate.edu or
+topcollege.ac.uk or myhostingcompany.com, i.e., the part of
+a server hostname which indicates to which organization the 
+server belongs.
+
+ENTER INTERNET DOMAIN NAME:
+END
+
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice =~/[^.]+\.[^.]+/) {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'internet domain'."\t".$choice."\n");
+    close(OUT);
+    $intdom=$choice;
+    $flag=1;
+  }
+  else {
+    print "Invalid input (must be at least two levels separated by .  - e.g., ustate.edu).\n";
+  }
+}
+
+# get hostname
+# accept if valid, if not valid, tell user and repeat
+$flag=0;
+my $posshostname;
+if (($hostname =~ /^[A-Za-z0-9\-]+$/) && ($intdom ne '')) {
+    $posshostname = $hostname.'.'.$intdom;
+} 
+if (($hostname =~ /^[A-Za-z0-9\-]+\.[A-Za-z0-9\-]+/) &&
+    ($hostname =~ /^[A-Za-z0-9.\-]+$/)) {
+    $posshostname = $hostname;
+}
+while (!$flag) {
+  print(&lt;&lt;END);
+
+****** Hostname of the server/VM *****
+
+The hostname of the server/VM is required. This will be similar to:
+somename.ustate.edu or somename.department.ustate.edu, and would be
+the web address which users would point their web browsers at to
+access the server.
+
+END
+
+if ($posshostname) {
+    print "ENTER HOSTNAME OF SERVER [$posshostname]:\n";
+} else {
+    print "ENTER HOSTNAME OF SERVER:\n";
+}
+
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if (($choice =~ /^[A-Za-z0-9\-]+\.[A-Za-z0-9\-]+/) &&
+      ($choice =~ /^[A-Za-z0-9.\-]+$/)) {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'hostname'."\t".$choice."\n");
+    close(OUT);
+    $desiredhostname=$choice;
+    $flag=1;
+  } elsif (($choice eq '') && ($posshostname ne '')) {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'hostname'."\t$posshostname\n");
+    close(OUT);
+    $desiredhostname = $posshostname;
+    $flag = 1;
+  } else {
+    print "Invalid input (only letters, numbers, - and . allowed, with at least one .).\n";
+  }
+}
+
+# get Country
+print(&lt;&lt;END);
+
+****** Information about Country, State or Province and City *****
+
+A two-letter country code, e.g., US, CA, DE etc. as defined by ISO 3166,
+is required. A state or province, and a city are also required.
+This locality information is included in two SSL certificates used internally
+by LON-CAPA, unless you are running standalone.
+
+If your server will be part of either the production or development 
+clusters, then the certificate will need to be signed by the official 
+LON-CAPA Certificate Authority (CA).  If you will be running your own 
+cluster then the cluster will need to create its own CA. 
+
+END
+
+my $posscountry;
+if ($desiredhostname =~ /\.(edu|com|org)$/) {
+    $posscountry = 'us';
+
+} else { 
+    ($posscountry) = ($desiredhostname =~ /\.(a-z){2}$/);
+}
+if ($posscountry) {
+    my $countrydesc = &Locale::Country::code2country($posscountry);
+    if ($countrydesc eq '') {
+        undef($posscountry);
+    }
+}
+
+$flag=0;
+while (!$flag) {
+  if ($posscountry) {
+     $posscountry = uc($posscountry);
+     print "ENTER TWO-LETTER COUNTRY CODE [$posscountry]:\n";
+  } else {
+     print "ENTER TWO-LETTER COUNTRY CODE:\n";
+  }
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice ne '') {
+    if (&Locale::Country::code2country(lc($choice))) {
+      open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+      print(OUT 'country'."\t".uc($choice)."\n");
+      close(OUT);
+      $country=uc($choice);
+      $flag=1;
+    } else {
+      print "Invalid input -- a valid two letter country code is required\n";
+    }
+  } elsif (($choice eq '') && ($posscountry ne '')) {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'country'."\t".$posscountry."\n");
+    close(OUT);
+    $country = $posscountry;
+    $flag = 1;
+  } else {
+    print "Invalid input -- a country code is required\n";
+  }
+}
+
+$flag=0;
+# get State or Province
+while (!$flag) {
+  print(&lt;&lt;END);
+
+ENTER STATE OR PROVINCE NAME:
+END
+
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice ne '') {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'state'."\t".$choice."\n");
+    close(OUT);
+    $state=$choice;
+    $flag=1;
+  }
+  else {
+    print "Invalid input (a state or province name is required).\n";
+  }
+}
+
+$flag=0;
+# get City
+while (!$flag) {
+  print(&lt;&lt;END);
+
+ENTER CITY NAME:
+END
+
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice ne '') {
+    open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+    print(OUT 'city'."\t".$choice."\n");
+    close(OUT);
+    $city=$choice;
+    $flag=1;
+  }
+  else {
+    print "Invalid input (a city is required).\n";
+  }
+}
+
+$flag=0;
+while (!$flag) {
+  print(&lt;&lt;END);
+
+The domain description, country, state and city will be
+used in the SSL certificates
+ 
+1) Domain Description: $domainDescription
+2) Country: $country
+3) State or Province: $state
+4) City: $city
+5) Everything is correct up above 
+
+ENTER A CHOICE OF 1-4 TO CHANGE, otherwise ENTER 5:
+END
+  my $choice=&lt;&gt;;
+  chomp($choice);
+  if ($choice == 1) {
+    print(&lt;&lt;END);
+1) Domain Description: $domainDescription
+ENTER NEW VALUE 
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $domainDescription=$choice2;
+  }
+  elsif ($choice == 2) {
+    print(&lt;&lt;END);
+2) Country: $country
+ENTER NEW VALUE (this should be a two-character code, e,g, US, CA, DE)
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $country = uc($choice2); 
+  }
+  elsif ($choice == 3) {
+    print(&lt;&lt;END);
+3) State or Province: $state
+ENTER NEW VALUE:
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $state=$choice2;
+  }
+  elsif ($choice == 4) {
+    print(&lt;&lt;END);
+4) City: $city
+ENTER NEW VALUE:
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $city=$choice2;
+  } elsif ($choice == 5) {
+    $flag=1;
+    $state =~ s{/}{ }g;
+    $city =~ s{/}{ }g;
+    $domainDescription =~ s{/}{ }g;
+  } else {
+    print "Invalid input.\n";
+  }
+}
+
+my $perlvarref = &get_static_config();
+if (ref($perlvarref) eq 'HASH') {
+  my ($certsdir,$privkey,$connectcsr,$replicatecsr);
+  $certsdir = $perlvarref-&gt;{'lonCertificateDirectory'};
+  $privkey = $perlvarref-&gt;{'lonnetPrivateKey'};  
+  $connectcsr = $perlvarref-&gt;{'lonnetCertificate'};
+  $connectcsr =~ s/\.pem$/.csr/;
+  $replicatecsr = $perlvarref-&gt;{'lonnetHostnameCertificate'};
+  $replicatecsr =~ s/\.pem$/.csr/;
+
+  print(&lt;&lt;END);
+
+****** SSL Certificates *****
+
+You need to provide a password to be used for the openssl key which
+will be stored in $certsdir, and will be used when creating two
+certificate signing requests: $connectcsr and $replicatecsr
+
+END
+
+  my $sslkeypass;
+  $flag=0;
+# get Password for SSL key
+  while (!$flag) {
+    $sslkeypass = &make_passphrase();
+    if ($sslkeypass) {
+      $flag = 1;
+    } else {
+      print "Invalid input (a password is required for the SSL key).\n";
+    }
+  }
+
+  if ($certsdir && $privkey) {
+    my $connectsubj = "/C=$country/ST=$state/O=$domainDescription/L=$city/CN=$lonHostID/OU=LONCAPA/emailAddress=$lonAdmEMail";
+    my $replicatesubj = "/C=$country/ST=$state/O=$domainDescription/L=$city/CN=internal-$desiredhostname/OU=LONCAPA/emailAddress=$lonAdmEMail";
+
+# generate SSL key
+# generate SSL csr for hostID
+# generate SSL csr for internal hostname
+
+    if (-f "$certsdir/lonKey.enc") {
+        my $mode = 0600;
+        chmod $mode, "$certsdir/lonKey.enc";
+    }
+    open(PIPE,"openssl genrsa -des3 -passout pass:$sslkeypass -out $certsdir/lonKey.enc 2048 2&gt;&1 |");
+    close(PIPE);
+    if (-f "$certsdir/$privkey") {
+        my $mode = 0600;
+        chmod $mode, "$certsdir/$privkey";
+    }
+    open(PIPE,"openssl rsa -in $certsdir/lonKey.enc -passin pass:$sslkeypass -out $certsdir/$privkey -outform PEM |");
+    close(PIPE);
+    if ($connectcsr) {
+        open(PIPE,"openssl req -key $certsdir/lonKey.enc -passin pass:$sslkeypass -new -batch -subj \"$connectsubj\" -out $certsdir/$connectcsr |");
+        close(PIPE);
+    }
+    if ($replicatecsr) { 
+        open(PIPE,"openssl req -key $certsdir/lonKey.enc -passin pass:$sslkeypass -new -batch -subj \"$replicatesubj\" -out $certsdir/$replicatecsr |");
+        close(PIPE);
+    }
+    if (-f "$certsdir/lonKey.enc") {
+        my $mode = 0400;
+        chmod $mode, "$certsdir/lonKey.enc";
+    }
+    if (-f "$certsdir/$privkey") {
+        my $mode = 0400;
+        chmod $mode, "$certsdir/$privkey";
+    }
+  }
+
+  my $camail;
+  if ($lonCluster eq 'production' || $lonCluster eq 'development') {
+    $camail = $perlvarref-&gtl{'SSLEmail'};
+  } else {
+    $flag=0;
+# get Certificate Authority E-mail 
+    while (!$flag) {
+      print(&lt;&lt;END);
+
+ENTER EMAIL ADDRESS TO SEND CERTIFICATE SIGNING REQUESTS
+END
+
+      my $choice=&lt;&gt;;
+      chomp($choice);
+      if ($choice ne '') {
+        open(OUT,'&gt;&gt;/tmp/loncapa_updatequery.out');
+        print(OUT 'Certificate Authority Email Address'."\t".$choice."\n");
+        close(OUT);
+        $camail=$choice;
+        $flag=1;
+      } else {
+        print "Invalid input (an email address is required).\n";
+      }
+    }
+  }
+  if ($camail) {
+    my $subj;
+    if (-e "$certsdir/$connectcsr") { 
+        $subj = "Certificate Request ($lonHostID)";
+        print(&send_mail($desiredhostname,$camail,$subj,"$certsdir/$connectcsr"));
+    }
+    if (-e "$certsdir/$replicatecsr") {
+        $subj = "Certificate Request (internal-$desiredhostname)";
+        print(&send_mail($desiredhostname,$camail,$subj,"$certsdir/$replicatecsr"));
+    }
+  }
+}
+
 # update loncapa.conf
-my $confdir='/etc/httpd/conf/';
-#my $confdir='';
+my $confdir = '/etc/httpd/conf/';
+if ('<DIST />' eq 'sles10' || '<DIST />' eq 'sles11' || '<DIST />' eq 'sles12' || '<DIST />' eq 'suse10.1' || '<DIST />' eq 'suse10.2' || '<DIST />' eq 'suse10.3' || '<DIST />' eq 'suse11.1' || '<DIST />' eq 'suse11.2' || '<DIST />' eq 'suse11.3' || '<DIST />' eq 'suse11.4' || '<DIST />' eq 'suse12.1' || '<DIST />' eq 'suse12.2' || '<DIST />' eq 'suse12.3' || '<DIST />' eq 'suse13.1' || '<DIST />' eq 'suse13.2' || '<DIST />' eq 'debian5' || '<DIST />' eq 'debian6' || '<DIST />' eq 'ubuntu6' || '<DIST />' eq 'ubuntu8' || '<DIST />' eq 'ubuntu10' || '<DIST />' eq 'ubuntu12' || '<DIST />' eq 'ubuntu14' || '<DIST />' eq 'ubuntu16') {
+     $confdir = '/etc/apache2/';
+}   
 my $filename='loncapa.conf';
 my %perlvar;
     if (-e "$confdir$filename") {
@@ -255,7 +1076,7 @@ my %perlvar;
 	    if ($configline =~ /^[^\#]*PerlSetVar/) {
 		my ($unused,$varname,$varvalue)=split(/\s+/,$configline);
 		chomp($varvalue);
-		$perlvar{$varname}=$varvalue;
+		$perlvar{$varname}=$varvalue if $varvalue!~/^\{\[\[\[\[/;
 	    }
 	}
 	close(CONFIG);
@@ -263,20 +1084,21 @@ my %perlvar;
     $perlvar{'lonHostID'}=$lonHostID;
     $perlvar{'lonDefDomain'}=$lonDefDomain;
     $perlvar{'lonAdmEMail'}=$lonAdmEMail;
+    $perlvar{'lonSupportEMail'}=$lonSupportEMail;
     $perlvar{'lonRole'}=$lonRole;
-    unless ($perlvar{'lonSqlAccess'}) {
-       $perlvar{'lonSqlAccess'}='localhostkey';
-    }
-    unless ($perlvar{'lonLoadLim'}) {
+    unless ($perlvar{'lonLoadLim'} and $perlvar{'lonLoadLim'}!~/\{\[\[\[\[/) {
        $perlvar{'lonLoadLim'}='2.00';
     }
-    unless ($perlvar{'lonExpire'}) {
+    unless ($perlvar{'lonUserLoadLim'} and $perlvar{'lonUserLoadLim'}!~/\{\[\[\[\[/) {
+       $perlvar{'lonUserLoadLim'}='0';
+    }
+    unless ($perlvar{'lonExpire'} and $perlvar{'lonExpire'}!~/\{\[\[\[\[/) {
        $perlvar{'lonExpire'}='86400';
     }
-    unless ($perlvar{'lonReceipt'}) {
+    unless ($perlvar{'lonReceipt'} and $perlvar{'lonReceipt'}!~/\{\[\[\[\[/) {
        my $lonReceipt='';
        srand(time ^ $$ ^ unpack "%L*", `ps axww | gzip`);
-       my @alnum=(0..9,a..z);
+       my @alnum=(0..9,"a".."z");
        foreach my $i (1..20) {
 	 $lonReceipt.=$alnum[int(rand(36))];
        }
@@ -286,8 +1108,12 @@ my %perlvar;
       die("Cannot output to $confdir$filename\n");
     foreach my $key (keys %perlvar) {
       my $value=$perlvar{$key};
+      my $line = "PerlSetVar     $key      $value"; 
+      if ($value eq '') {
+          $line = '#'.$line;
+      }
       print(OUT &lt;&lt;END);
-PerlSetVar     $key      $value
+$line
 END
     }
     close(OUT);
@@ -295,13 +1121,29 @@ END
 </perlscript>
 </file>
 <file>
-<target dist='default'>/</target>
+<target dist='default'>/etc/httpd/conf/</target>
+<target dist='sles10 sles11 sles12 suse10.1 suse10.2 suse10.3 suse11.1 suse11.2 suse11.3 suse11.4 suse12.1 suse12.2 suse12.3 suse13.1 suse13.2 debian5 debian6 ubuntu6 ubuntu8 ubuntu10 ubuntu12 ubuntu14 ubuntu16'>/etc/apache2/</target>
 <perlscript mode='fg'>
+sub securesetting {
+    my (%perlvar)=@_;
+    my $securestatus='unknown';
+    my $securenum='';
+    if      ( $perlvar{'loncAllowInsecure'}&&  $perlvar{'londAllowInsecure'}) {
+	$securestatus='no';                  $securenum='4';
+    } elsif ( $perlvar{'loncAllowInsecure'}&& !$perlvar{'londAllowInsecure'}) {
+	$securestatus='lond';                $securenum='3';
+    } elsif (!$perlvar{'loncAllowInsecure'}&&  $perlvar{'londAllowInsecure'}) {
+	$securestatus='lonc';                $securenum='2';
+    } elsif (!$perlvar{'loncAllowInsecure'}&& !$perlvar{'londAllowInsecure'}) {
+	$securestatus='yes (lond and lonc)'; $securenum='1';
+    }
+    return ($securestatus,$securenum);
+}
 # read values from loncapa.conf
-my $confdir='/etc/httpd/conf/';
-#my $confdir='';
+my $confdir = "<TARGET />";
 my $filename='loncapa.conf';
 my %perlvar;
+my ($securestatus,$securenum);
     if (-e "$confdir$filename") {
 	open(CONFIG,'&lt;'.$confdir.$filename) or 
           die("Can't read $confdir$filename");
@@ -314,6 +1156,31 @@ my %perlvar;
 	}
 	close(CONFIG);
     }
+    unless ($perlvar{'lonLoadLim'} and $perlvar{'lonLoadLim'}!~/\{\[\[\[\[/) {
+       $perlvar{'lonLoadLim'}='2.00';
+    }
+    unless ($perlvar{'lonUserLoadLim'} and $perlvar{'lonUserLoadLim'}!~/\{\[\[\[\[/) {
+       $perlvar{'lonUserLoadLim'}='0';
+    }
+    unless ($perlvar{'lonExpire'} and $perlvar{'lonExpire'}!~/\{\[\[\[\[/) {
+       $perlvar{'lonExpire'}='86400';
+    }
+    unless ($perlvar{'londAllowInsecure'} and $perlvar{'londAllowInsecure'}!~/\{\[\[\[\[/) {
+       $perlvar{'londAllowInsecure'}='1';
+    }
+    unless ($perlvar{'loncAllowInsecure'} and $perlvar{'loncAllowInsecure'}!~/\{\[\[\[\[/) {
+       $perlvar{'loncAllowInsecure'}='1';
+    }
+    ($securestatus,$securenum)=&securesetting(%perlvar);
+    unless ($perlvar{'lonReceipt'} and $perlvar{'lonReceipt'}!~/\{\[\[\[\[/) {
+       my $lonReceipt='';
+       srand(time ^ $$ ^ unpack "%L*", `ps axww | gzip`);
+       my @alnum=(0..9,"a".."z");
+       foreach my $i (1..20) {
+	 $lonReceipt.=$alnum[int(rand(36))];
+       }
+       $perlvar{'lonReceipt'}=$lonReceipt;
+    }
 my %perlvarstatic;
     if (-e "${confdir}loncapa_apache.conf") {
 	open(CONFIG,'&lt;'.$confdir.'loncapa_apache.conf') or 
@@ -327,32 +1194,412 @@ my %perlvarstatic;
 	}
 	close(CONFIG);
     }
+
+    my (@hosts_files, @domain_files);
+    if ( $lonCluster ne 'existing') {
+	push(@domain_files,'../'.$lonCluster.'_domain.tab',
+	     '../'.$lonCluster.'_dns_domain.tab');
+	push(@hosts_files,'../'.$lonCluster.'_hosts.tab',
+	     '../'.$lonCluster.'_dns_hosts.tab');
+    }
+    push(@domain_files,'/home/httpd/lonTabs/domain.tab',
+         '/home/httpd/lonTabs/dns_domain.tab');
+    push(@hosts_files,'/home/httpd/lonTabs/hosts.tab',
+         '/home/httpd/lonTabs/dns_hosts.tab');
+
+    my @poss_hosts_files = @hosts_files;
+    if (!$domainDescription) {
+	foreach my $file (@domain_files) {
+	    open(IN,'&lt;'.$file);
+	    while(my $line = &lt;IN&gt;) {
+		if ($line =~ /^\Q$perlvar{'lonDefDomain'}\E\:/) {
+		    (undef,$domainDescription,$domainTabExtras)=split(/:/,$line,3);
+		    chomp($domainDescription);
+		    chomp($domainTabExtras);
+		    # the remaining field (primary lib server) is handled later
+		    $domainTabExtras = join(':',(split(/:/,$domainTabExtras))[0..5]);
+		    last;
+		}
+	    }
+	    close(IN);
+	    last if ($domainDescription);
+	}
+    }
+
+    if ((!$protocol) || (!$desiredhostname)) {
+        foreach my $file (@hosts_files) {
+            open(IN,'&lt;'.$file);
+            while(my $line = &lt;IN&gt;) {
+                if ($line =~ /^\Q$perlvar{'lonHostID'}\E:\Q$perlvar{'lonDefDomain'}\E\:(?:access|library)\:([^:]+)\:(https?)/) {
+                    if (!$desiredhostname) {
+                        $desiredhostname = $1;
+                    }
+                    if (!$protocol) { 
+                        $protocol = $2;
+                        chomp($protocol);
+                    }
+                    last;
+                }
+            }
+        }
+    }
+
+    if (!$protocol) {
+        $protocol = 'http';
+    }
+
+    if (!$intdom) {
+        foreach my $file (@hosts_files) {
+            open(IN,'&lt;'.$file);
+            while(my $line = &lt;IN&gt;) {
+                if ($line =~ /^\Q$perlvar{'lonHostID'}\E:\Q$perlvar{'lonDefDomain'}\E\:(?:access|library)\:[^:]+\:https?\:([^:]+)/) {
+                    $intdom = $1;
+                    chomp($intdom);
+                    last;
+                }
+            }
+        }
+    }
+
+    my (%hostnames,%protocols);
+    while(!$primaryLibServer && (@hosts_files || @domain_files)) {
+	my $file = shift(@domain_files);
+        open(IN,'&lt;'.$file);
+        while(my $line = &lt;IN&gt;) {
+            if ($line =~ /^\Q$perlvar{'lonDefDomain'}\E\:/) {
+		$primaryLibServer=(split(/:/,$line))[8];
+                chomp($primaryLibServer);
+            }
+        }
+        close(IN);
+	last if ($primaryLibServer);
+	$file = shift(@hosts_files);
+	open(IN,'&lt;'.$file);
+	while(my $line = &lt;IN&gt;) {
+	    if ($line =~ /^([^\:]+)\:\Q$perlvar{'lonDefDomain'}\E\:library\:([^\:]+)/) {
+		push(@libservers,$1);
+                $hostnames{$1} = $2;
+	    }
+	}
+	# make list unique
+	@libservers = keys(%{{ map { $_ =&gt; 1 } (@libservers) }});
+	close(IN);
+	if (@libservers == 1) {
+	    $primaryLibServer = $libservers[0];
+	}
+    }
+
+# get hostname of primaryLibServer
+    my ($primary_hostname,$primary_protocol);
+    if ($primaryLibServer) {
+        if ($hostnames{$primaryLibServer}) {
+            $primary_hostname = $hostnames{$primaryLibServer};
+            $primary_protocol = $protocols{$primaryLibServer};
+        } else {
+            foreach my $file (@poss_hosts_files) {
+                open(IN,'&lt;'.$file);
+                while (my $line = &lt;IN&gt;) {
+                    if ($line =~ /^([^\:]+)\:\Q$perlvar{'lonDefDomain'}\E\:library\:([^\:]+):(https?)/) {
+                        if ($1 eq $primaryLibServer) {
+                            $primary_hostname = $2;
+                            $primary_protocol = $3;
+                            last;
+                        }
+                    }
+                }
+                close(IN);
+                last if ($primary_hostname);
+            }
+        }
+    }
+   
 # implement editing logic below, interactively
-# update loncapa.conf until 7 is entered
+# update loncapa.conf until 17 is entered
+
+my $flag=0;
+
+#
+# Changes to 5, 6, and 14 not supported if configuration.db set on primary library server.
+# (requires either this machine to be primary library server or for LON-CAPA and Apache
+# to be running on primary library server.
+#
+
+my ($isprimary,$domconf,$url,$gotdomconf,$adminmail,$supportmail,$connectssl,%setbygui);
+if ($primaryLibServer eq $perlvar{'lonHostID'}) {
+    $isprimary = 1;
+} else {
+    unless ($primary_protocol eq 'https') {
+        $primary_protocol = 'http';
+    } 
+    $url = $primary_protocol.'://'.$primary_hostname.'/cgi-bin/listdomconfig.pl';
+}
+my $domconf = &get_domain_config($perlvar{'lonDefDomain'},$primaryLibServer,$isprimary,
+                                 $url,\%perlvarstatic);
+if (ref($domconf)) {
+    $gotdomconf = 1;
+    if (ref($domconf-&gt;{'contacts'}) eq 'HASH') {
+        if (exists($domconf-&gt;{'contacts'}-&gt;{'adminemail'})) {
+            $adminmail = $domconf-&gt;{'contacts'}-&gt;{'adminemail'};
+        }
+        if (exists($domconf->{'contacts'}->{'supportemail'})) {
+            $supportmail = $domconf-&gt;{'contacts'}-&gt;{'supportemail'};
+        }
+    }
+    if (ref($domconf-&gt;{'ssl'}) eq 'HASH') {
+        foreach my $connect ('connto','connfrom') { 
+            if (ref($domconf-&gt;{'ssl'}-&gt;{$connect}) eq 'HASH') {       
+                my ($sslreq,$sslnoreq,$currsetting);
+                my %contypes; 
+                foreach my $type ('dom','intdom','other') {
+                    my $key;
+                    if ($domconf-&gt;{'ssl'}-&gt;{'connect'}-&gt;{$type} eq 'req') {
+                        $key = 'yes';
+                    } else {
+                        $key = 'no';
+                    }
+                    if ($type eq 'dom') {
+                        $contypes{$key} .= ' own domain,';
+                    } elsif ($type eq 'intdom') {
+                        $contypes{$key} .= ' own institution,';
+                    } elsif ($type eq 'other') { 
+                        $contypes{$key} .= ' other domains,';
+                    }
+                }
+                foreach my $key (sort(keys(%contypes))) {
+                    $contypes{$key} =~ s/^\s//;
+                    $contypes{$key} =~ s/,$//;
+                    if ($key eq 'yes') {
+                        $currsetting .= ' Yes ('.$contypes{$key}.'),';
+                    } elsif ($key eq 'no') {
+                        $currsetting .= ' No ('.$contypes{$key}.')';
+                    }
+                    $currsetting =~ s/,$//;
+                }
+                if ($currsetting ne '') {
+                    $connectssl = $sslname{$connect}.' -- '.$currsetting.' | '; 
+                }
+            }
+        }
+        $connectssl =~ s/\s\|\s$//; 
+    }
+}
+if ($connectssl) {
+    $setbygui{'securestatus'} = 1;
+    $securestatus = 'Set by domain configuration via web GUI. Currently: '.$connectssl; 
+}
+if ($adminmail) {
+    $adminmail = 'Set by domain configuration via web GUI. Currently: '.$adminmail;
+    $setbygui{'lonAdmEMail'} = 1;
+} else {
+    $adminmail = $perlvar{'lonAdmEMail'};
+}
+if ($supportmail) {
+    $supportmail = 'Set by domain configuration via web GUI. Currently: '.$supportmail;
+    $setbygui{'lonSupportEMail'} = 1;
+} else {
+    $supportmail = $perlvar{'lonSupportEMail'};
+}
+
+print "\nRetrieving status information for SSL key and certificates ...\n\n";
+my ($lonhostcertstatus,$lonhostnamecertstatus,$lonkeystatus);
+my $currcerts = &LONCAPA::SSL::print_certstatus({$perlvar{'lonHostID'} =&gt; 1,},'text','cgi');
+chomp($currcerts);
+my %sslstatus;
+
+if ($currcerts eq "$perlvar{'lonHostID'}:error") {
+    print "No information available for SSL certificates\n";
+    $sslstatus{'key'} = -1;
+    $sslstatus{'host'} = -1;
+    $sslstatus{'hostname'} = -1;
+    $sslstatus{'ca'} = -1;
+    $lonkeystatus = 'unknown status';
+    $lonhostcertstatus = 'unknown status';
+    $lonhostnamecertstatus = 'unknown status';
+} else {
+    my %sslnames = (
+                      key      =&gt; 'lonnetPrivateKey',
+                      host     =&gt; 'lonnetCertificate',
+                      hostname =&gt; 'lonnetHostnameCertificate',
+                      ca       =&gt; 'lonnetCertificateAuthority',
+                   );
+    my %ssldesc = (
+                    key      =&gt; 'Private Key',
+                    host     =&gt; 'Connections Certificate',
+                    hostname =&gt; 'Replication Certificate',
+                    ca       =&gt; 'LON-CAPA CA Certificate',
+                  );
+    my ($lonhost,$info) = split(/\:/,$currcerts,2);
+    if ($lonhost eq $perlvar{'lonHostID'}) {
+        my @items = split(/\&/,$info);
+        foreach my $item (@items) {
+            my ($key,$value) = split(/=/,$item,2);
+            my @data = split(/,/,$value);
+            if (grep(/^\Q$key\E$/,keys(%sslnames))) {
+                if (lc($data[0]) eq 'yes') { 
+                    print "$ssldesc{$key} $perlvarstatic{$sslnames{$key}} available with status = $data[1]\n";
+                    if ($key eq 'key') {
+                        $lonkeystatus = "status: $data[1]"; 
+                        if ($data[1] =~ /ok$/) {
+                            $sslstatus{$key} = 1;
+                        } 
+                    } else {
+                        if ($data[1] eq 'Expired') {
+                            $sslstatus{$key} = 2;
+                        } else {
+                            $sslstatus{$key} = 1;
+                        }
+                        if ($key eq 'host') {
+                            $lonhostcertstatus = "status: $data[1]";
+                        } elsif ($key eq 'hostname') {
+                            $lonhostnamecertstatus = "status: $data[1]";
+                        }
+                    }
+                } else {
+                    $sslstatus{$key} = 0;
+                    print "$ssldesc{$key} $perlvarstatic{$sslnames{$key}} not available\n";
+                    if (($key eq 'host') || ($key eq 'hostname')) {
+                        my $csr = $perlvarstatic{$sslnames{$key}};
+                        $csr =~s /\.pem$/.csr/;
+                        my $csrstatus;
+                        if (-e "$perlvarstatic{'lonCertificateDirectory'}/$csr") {
+                            open(PIPE,"openssl req -text -noout -verify -in $perlvarstatic{'lonCertificateDirectory'}/$csr 2&gt;&1 |");
+                            while(&lt;PIPE&gt;) {
+                                chomp();
+                                $csrstatus = $_;
+                                last;
+                            }
+                            close(PIPE);
+                            print "Certificate signing request for $ssldesc{$key} available with status = $csrstatus\n\n";
+                            if ($key eq 'host') {
+                                $lonhostcertstatus = 'awaiting signature';
+                            } else {
+                                $lonhostnamecertstatus = 'awaiting signature';
+                            }
+                            $sslstatus{$key} = 3;
+                        } else {
+                            print "No certificate signing request available for $ssldesc{$key}\n\n";
+                            if ($key eq 'host') {
+                                $lonhostcertstatus = 'still needed';
+                            } else {
+                                $lonhostnamecertstatus = 'still needed';
+                            }
+                        }
+                    } elsif ($key eq 'key') {
+                        $lonkeystatus = 'still needed';
+                    }
+                }
+            }
+        }
+    }
+}
 
-$flag=0;
 while (!$flag) {
   print(&lt;&lt;END);
 
 ===============================================================================
 This is now the current configuration of your machine.
-1) Domain Name: $perlvar{'lonDefDomain'}
-2) Machine Name: $perlvar{'lonHostID'}
-3) System Administrator's E-mail Address: $perlvar{'lonAdmEMail'}
-4) Role: $perlvar{'lonRole'}
-5) Cache Expiration Time: $perlvar{'lonExpire'}
-6) Server Load: $perlvar{'lonLoadLim'}
-7) Everything is correct up above
-END
+ 1) Domain Name: $perlvar{'lonDefDomain'}
+ 2) Domain Description: $domainDescription
+ 3) Machine Name: $perlvar{'lonHostID'}
+ 4) ID of primary library server for domain: $primaryLibServer
+ 5) Server Administrator's E-mail Address: $adminmail
+ 6) Support E-mail Address: $supportmail
+ 7) Web Server Protocol (http or https): $protocol 
+ 8) Internet Domain Name: $intdom 
+ 9) Hostname: $desiredhostname
+10) Role: $perlvar{'lonRole'}
+11) Cache Expiration Time: $perlvar{'lonExpire'} (seconds)
+12) Server Load: $perlvar{'lonLoadLim'}
+13) User Load: $perlvar{'lonUserLoadLim'}
+14) Allow only secure connections: $securestatus
+15) Private Key for SSL: $lonkeystatus
+16) SSL Certificate for LON-CAPA server connections: $lonhostcertstatus
+17) SSL Certificate for Content Replication: $lonhostnamecertstatus
+18) Everything is correct up above
+END
+
+my @error;
+foreach my $v ($perlvar{'lonDefDomain'},$perlvar{'lonHostID'}) {
+   if (length($v)&gt;35) { push(@error,"Name $v too long"); }		
+   if (length($v)&lt;2) { push(@error,"Name $v too short"); }
+   if ($v=~/capa/i) {
+	if ($v!~/^oucapa\d+$/ && 
+	    ($v!~/^capa\d+$/ && $perlvar{'lonDefDomain'} eq 'uwsp')) {
+		 push(@error,"Name $v contains 'capa'");
+	}
+   }
+   foreach my $bad ('res','raw','userfiles','priv','adm','uploaded',
+	'editupload') {
+      push(@error,"\nName $v reserved.") if $v eq $bad;
+   }
+   if ($v=~/[^\w\-.]/) { push(@error,"Name $v contains special characters"); }
+}
+if ($domainDescription =~ /^\s*$/) {
+   push(@error,"Domain Description is blank.");
+} elsif ($domainDescription!~/^[\(\)\-\w\s,]+$/) {
+   push(@error,"Domain Description contains special characters.");
+} 
+foreach my $v ($perlvar{'lonExpire'},$perlvar{'lonLoadLim'}) {
+   unless ($v=~/^[\d+\.]+$/) { push(@error,"Number expected instead of $v"); }
+}
+unless (($perlvar{'lonRole'} eq 'library') || ($perlvar{'lonRole'} eq 'access')) {
+   push(@error,"Invalid Role");
+}
+
+unless (($protocol eq 'http') || ($protocol eq 'https')) {
+   push(@error,"Invalid Protocol (must be http or https");
+}
+
+if (!defined($intdom)) { 
+   push(@error,"No internet domain name designated. Enter something like ustate.edu"); 
+} elsif ($intdom !~ /[^.]+\.\w{2,6}$/) {
+   push(@error,"Invalid Internet domain name (must be at least two levels separated by .  - e.g., ustate.edu");
+}
+
+if (!defined($primaryLibServer)) {
+   if (@libservers &gt; 0) {
+       push(@error,"No primary library server ID designated. Choose from: ".join(',',sort(@libservers)));
+   } else {
+       push(@error,"No library servers in this domain (including current server)");
+   }
+} else {
+   if (length($primaryLibServer)&gt;35) { push(@error,"Primary Library Server ID:  $primaryLibServer too long"); }
+   if (length($primaryLibServer)&lt;2) { push(@error,"Primary Library Server ID:  $primaryLibServer too short"); }
+   if ($primaryLibServer =~/capa/i) {
+        if ($primaryLibServer!~/^oucapa\d+$/ &&
+            ($primaryLibServer!~/^capa\d+$/ && $perlvar{'lonDefDomain'} eq 'uwsp')) {
+                 push(@error,"Primary library server ID $primaryLibServer contains 'capa'")
+        }
+   }
+   foreach my $bad ('res','raw','userfiles','priv','adm','uploaded',
+        'editupload') {
+      push(@error,"Primary library server ID $primaryLibServer reserved.") if $primaryLibServer eq $bad;
+   }
+   if ($primaryLibServer=~/[^\w\-.]/) { push(@error,"Primary library server ID $primaryLibServer contains special characters"); }
+}
+
+
+my ($certsdir,$privkey,$connectcsr,$replicatecsr);
+$certsdir = $perlvarstatic{'lonCertificateDirectory'};
+$privkey = $perlvarstatic{'lonnetPrivateKey'};
+$connectcsr = $perlvarstatic{'lonnetCertificate'};
+$connectcsr =~ s/\.pem$/.csr/;
+$replicatecsr = $perlvarstatic{'lonnetHostnameCertificate'};
+$replicatecsr =~ s/\.pem$/.csr/;
+
+if (@error) { print "\n*** ERRORS: \n\t".join("\n\t",@error)."\n"; }
   print(&lt;&lt;END);
-ENTER A CHOICE OF 1-6 TO CHANGE, otherwise ENTER 7:
+ENTER A CHOICE OF 1-17 TO CHANGE, otherwise ENTER 18:
 END
 my $choice=&lt;&gt;;
 chomp($choice);
   if ($choice==1) {
   print(&lt;&lt;END);
-2) Domain Name: $perlvar{'lonDefDomain'}
-ENTER NEW VALUE:
+1) Domain Name: $perlvar{'lonDefDomain'}
+ENTER NEW VALUE (this is an internal value used to identify a group of
+                 LON-CAPA machines, it must be alphanumerical, we suggest
+                 using a part of your actual DNS domain. For example, for
+                 the machine loncapa.msu.edu, we set the Domain to msu):
 END
     my $choice2=&lt;&gt;;
     chomp($choice2);
@@ -360,62 +1607,236 @@ END
   }
   elsif ($choice==2) {
   print(&lt;&lt;END);
-1) Machine Name: $perlvar{'lonHostID'}
-ENTER NEW VALUE:
+2) Domain Description: $domainDescription
+ENTER NEW VALUE (this should be a string that describes your domain, spaces
+                 and punctuation are fine except for ':'):
 END
     my $choice2=&lt;&gt;;
     chomp($choice2);
-    $perlvar{'lonHostID'}=$choice2;
+    $domainDescription=$choice2;
   }
   elsif ($choice==3) {
   print(&lt;&lt;END);
-3) System Administrator's E-mail Address: $perlvar{'lonAdmEMail'}
-ENTER NEW VALUE:
+3) Machine Name: $perlvar{'lonHostID'}
+ENTER NEW VALUE (this will be the name of the machine in the LON-CAPA network
+                 it cannot contain any of '_' '-' '.' or ':'. We suggest that
+                 if you are in the domain 'example' and are the first library
+                 server you enter 'examplel1') :
 END
     my $choice2=&lt;&gt;;
     chomp($choice2);
-    $perlvar{'lonAdmEMail'}=$choice2;
+    $perlvar{'lonHostID'}=$choice2;
   }
   elsif ($choice==4) {
   print(&lt;&lt;END);
-4) Role: $perlvar{'lonRole'}
-ENTER NEW VALUE:
+4) ID of primary library server for domain: $primaryLibServer
+ENTER NEW VALUE (this will be the LON-CAPA Machine ID of a library server in
+                 your domain; it cannot contain any of '_' '-' '.' or ':'. 
+                 This server will be where domain data which are not 
+                 associated with any specific home library server
+                 will be stored (e.g., e-mail broadcast by Domain Coordinators
+                 to users in the domain).
 END
     my $choice2=&lt;&gt;;
     chomp($choice2);
-    $perlvar{'lonRole'}=$choice2;
+    $primaryLibServer=$choice2;
   }
   elsif ($choice==5) {
+    if ($setbygui{'lonAdmEMail'}) {
+      print(&lt;&lt;END);
+5) Server Administrator's E-mail Address: $adminmail
+Use the web GUI (as domain coordinator) to make changes after completing the UPDATE.
+END
+    } else {
+      print(&lt;&lt;END);
+5) Server Administrator's E-mail Address: $perlvar{'lonAdmEMail'}
+ENTER NEW VALUE:
+END
+      my $choice2=&lt;&gt;;
+      chomp($choice2);
+      $perlvar{'lonAdmEMail'}=$choice2;
+    }
+  }
+  elsif ($choice==6) {
+    if ($setbygui{'lonAdmEMail'}) {
+      print(&lt;&lt;END);
+6) Support E-mail Address: $supportmail
+Use the web GUI (as domain coordinator) to make changes after completing the UPDATE.
+END
+    } else {    
+      print(&lt;&lt;END);
+6) Support E-mail Address: $perlvar{'lonSupportEMail'}
+ENTER NEW VALUE:
+END
+      my $choice2=&lt;&gt;;
+      chomp($choice2);
+      $perlvar{'lonSupportEMail'}=$choice2;
+    }
+  }
+  elsif ($choice==7) {
   print(&lt;&lt;END);
-5) Cache Expiration Time: $perlvar{'lonExpire'}
+7) Server Protocol (http or https): 
+ENTER NEW VALUE: (this should be either 'http' or 'https'
+                 if in doubt set to 'http'):
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $protocol=$choice2;
+  }
+  elsif ($choice==8) {
+  print(&lt;&lt;END);
+8) Internet Domain Name of Institution
+ENTER NEW VALUE: 
+
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $intdom=$choice2;
+  }
+  elsif ($choice==9) {
+  print(&lt;&lt;END);
+9) Hostname of Server/VM
 ENTER NEW VALUE:
+
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $desiredhostname=$choice2;
+  }
+
+  elsif ($choice==10) {
+  print(&lt;&lt;END);
+10) Role: $perlvar{'lonRole'}
+ENTER NEW VALUE (this should be either 'access' or 'library' 
+                 if in doubt select 'library'):
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $perlvar{'lonRole'}=$choice2;
+  }
+  elsif ($choice==11) {
+  print(&lt;&lt;END);
+11) Cache Expiration Time: $perlvar{'lonExpire'}
+ENTER NEW VALUE (in seconds, 86400 is a reasonable value):
 END
     my $choice2=&lt;&gt;;
     chomp($choice2);
     $perlvar{'lonExpire'}=$choice2;
   }
-  elsif ($choice==6) {
+  elsif ($choice==12) {
   print(&lt;&lt;END);
-6) Server Load: $perlvar{'lonLoadLim'}
+12) Server Load: $perlvar{'lonLoadLim'}
 ENTER NEW VALUE:
 END
     my $choice2=&lt;&gt;;
     chomp($choice2);
     $perlvar{'lonLoadLim'}=$choice2;
   }
-  elsif ($choice==7) {
-    $flag=1;
+  elsif ($choice==13) {
+  print(&lt;&lt;END);
+13) User Load: $perlvar{'lonUserLoadLim'}
+Numer of users that can login before machine is 'overloaded'
+ENTER NEW VALUE (integer value, 0 means there is no limit):
+END
+    my $choice2=&lt;&gt;;
+    chomp($choice2);
+    $perlvar{'lonUserLoadLim'}=$choice2;
   }
-  else {
-
+  elsif ($choice==14) {
+    if ($setbygui{'securestatus'}) {
+      print(&lt;&lt;END);
+14) Allow only secure connections: $securestatus
+Use the web GUI (as domain coordinator) to make changes after completing the UPDATE.
+END
+    } else {
+      print(&lt;&lt;END);
+14) Allow only secure connections: $securestatus 
+The Lon-CAPA communication daemons lonc and lond can be configured to
+allow only secure connections by default.
+
+POSSIBLE CHOICES:
+1) allow only secure connections and don't connect to machines that
+    can not be connected to securely
+2) allow only secure connections but allow this machine to connect to 
+    machines that don't support secure connections
+3) allow insecure connections to this machine but only allow connections
+    to machines that support secure connections
+4) allow insecure connections
+ENTER NEW VALUE (currently $securenum):
+END
+      my $choice2=&lt;&gt;;
+      chomp($choice2);
+      if      ($choice2 eq '1') {
+	  $perlvar{'loncAllowInsecure'}=0;$perlvar{'londAllowInsecure'}=0;
+      } elsif ($choice2 eq '2') {
+	  $perlvar{'loncAllowInsecure'}=0;$perlvar{'londAllowInsecure'}=1;
+      } elsif ($choice2 eq '3') {
+	  $perlvar{'loncAllowInsecure'}=1;$perlvar{'londAllowInsecure'}=0;
+      } elsif ($choice2 eq '4') {
+	  $perlvar{'loncAllowInsecure'}=1;$perlvar{'londAllowInsecure'}=1;
+      }
+      ($securestatus,$securenum)=&securesetting(%perlvar);
+    }
+  } elsif ($choice==15) {
+      if (($sslstatus{'key'} == 1) || ($sslstatus{'key'} == 2)) {
+          print(&lt;&lt;END);
+15) Private Key for SSL: $lonkeystatus
+
+POSSIBLE CHOICES:
+1) overwrite existing key
+2) create new key for use later
+3) make no change
+ENTER NEW VALUE
+END
+      } elsif ($sslstatus{'key'} == ) {
+      my $choice2=&lt;&gt;;
+      chomp($choice2);
+  } elsif ($choice==16) {
+      if ($sslstatus{'key'} == 1) || ($sslstatus{'key'} == 2)) {
+      #$sslstatus{'host'};
+      print(&lt;&lt;END);
+16) SSL Certificate for LON-CAPA server connections: $lonhostcertstatus
+
+POSSIBLE CHOICES:
+1) create new certificate signing request with new key
+2) create new certificate signing request with existing key
+3) resend current certificate signing request
+4) make no change
+ENTER NEW VALUE
+END
+      my $choice2=&lt;&gt;;
+      chomp($choice2);
+  } elsif ($choice==17) {
+      #$sslstatus{'hostname'}
+      print(&lt;&lt;END);
+17) SSL Certificate for Content Replication: $lonhostnamecertstatus
+
+POSSIBLE CHOICES:
+1) create new certificate signing request with new key
+2) create new certificate signing request with existing key
+3) resend current certificate signing request
+4) make no change
+ENTER NEW VALUE
+END
+      my $choice2=&lt;&gt;;
+      chomp($choice2);
+  } elsif (($choice==18) && (!@error)) {
+    $flag=1;
+  } else {
+    print "Invalid input.\n";
   }
 }
+
     open(OUT,"&gt;$confdir$filename") or
       die("Cannot output to $confdir$filename\n");
     foreach my $key (keys %perlvar) {
       my $value=$perlvar{$key};
+      my $line = "PerlSetVar     $key      $value";
+      if ($value eq '') {
+          $line = '#'.$line;
+      }
       print(OUT &lt;&lt;END) unless $perlvarstatic{$key};
-PerlSetVar     $key      $value
+$line
 END
     }
     close(OUT);
@@ -425,81 +1846,160 @@ END
 <target dist='default'>loncom/hosts.tab</target>
 <perlscript mode='fg'>
 unless (-l "<TARGET />") {
-  print(&lt;&lt;END);
-
-===============================================================================
-What hosts.tab would you like to have installed?
-(hosts.tab is a listing of all other internet machines
-that a server system considers to be valid server systems
-on the LON-CAPA network)
-
-1) PRODUCTION - you want to deliver courses today or sometime very soon
-                on this machine
-2) STAND-ALONE - you want this machine to run in 'stand-alone' mode and
-                 not be connected to other LON-CAPA machines for now
-3) DEVELOPMENT - you want to play with or explore LON-CAPA
-4) PRESERVE the existing hosts.tab (/home/httpd/lonTabs/hosts.tab)
-
-END
-# Option number 26 will install rawhide_hosts.tab, but
-# the typical user does not want to be part of an intensive
-# machine test cluster.
-
-# get input
-# if valid then process, otherwise loop
-my $hostname=`hostname`;chomp($hostname);
-my $hostaddress=`hostname -i $hostname`;chomp($hostaddress);
-$flag=0;
-while (!$flag) {
-  print "ENTER 1, 2, 3, or 4:\n";
-  my $choice=&lt;&gt;;
-  chomp($choice);
-  if ($choice==1) {
-    $lonCluster='production';
-    `rm -f ../hosts.tab`;
-    `ln -s production_hosts.tab ../hosts.tab`;
-    $flag=1;
-  }
-  elsif ($choice==2) {
-    $lonCluster='standalone';
-    open(OUT,'&gt;../standalone_hosts.tab') or
-      die("cannot open loncom/standalone_hosts.tab for output\n");
-    print(OUT &lt;&lt;END);
-$perlvar{'lonHostID'}:$perlvar{'lonDefDomain'}:$perlvar{'lonRole'}:$hostname:$hostaddress
-END
+  if ($desiredhostname eq '') { 
+      my $hostname=`hostname -f`;chomp($hostname);
+      $desiredhostname = $hostname;
+  }
+  my $date=`date -I`; chomp($date);
+  my $lonHostID=$perlvar{'lonHostID'};
+  $lonHostID=~s/[^\w\-.]//g;
+  my $lineexistflag=0;
+  my $hostidexistflag=0;
+  my $line2insert=&lt;&lt;END;
+$perlvar{'lonHostID'}:$perlvar{'lonDefDomain'}:$perlvar{'lonRole'}:$desiredhostname:$protocol:$intdom
+END
+  if (!$domainTabExtras) {
+	$domainTabExtras=':::::';
+  }
+  my $domaininsert="$perlvar{'lonDefDomain'}:$domainDescription:$domainTabExtras:$primaryLibServer\n";
+  if ($lonCluster eq 'standalone') {
+    open(OUT,'&gt;../'.$lonCluster.'_hosts.tab') or
+      die('file generation error');
+      print(OUT $line2insert);
+      print OUT ("^$desiredhostname:$protocol\n");
+    close(OUT);
+    open(OUT,'&gt;../'.$lonCluster.'_dns_hosts.tab') or
+      die('file generation error');
+      print(OUT $line2insert);
+    close(OUT);
+    open(OUT,'&gt;../'.$lonCluster.'_domain.tab') or
+      die('file generation error');
+      print(OUT $domaininsert);
+    close(OUT);
+    open(OUT,'&gt;../'.$lonCluster.'_dns_domain.tab') or
+      die('file generation error');
+      print(OUT $domaininsert);
     close(OUT);
-    `rm -f ../hosts.tab`;
-    `ln -s standalone_hosts.tab ../hosts.tab`;
-    $flag=1;
-  }
-  elsif ($choice==3) {
-    $lonCluster='development';
-    `rm -f loncom/hosts.tab`;
-    `ln -s development_hosts.tab ../hosts.tab`;
-    $flag=1;
   }
-  elsif ($choice==4) {
-    $lonCluster='existing';
+  if ($flag==1) {
     `rm -f ../hosts.tab`;
-    `touch existing_hosts.tab`;
-    if (-e '/home/httpd/lonTabs/hosts.tab') {
-      `cp /home/httpd/lonTabs/hosts.tab ../existing_hosts.tab`;
+    `rm -f ../dns_hosts.tab`;
+    `ln -s ${lonCluster}_dns_hosts.tab ../dns_hosts.tab`;
+    open(IN,'&lt;../'.$lonCluster.'_dns_hosts.tab');
+    while(my $line = &lt;IN&gt;) {
+      if ($line =~ /^\Q$line2insert\E$/) {
+        $lineexistflag=1;
+      }
+      if ($line =~ /^\Q$lonHostID\E\:/) {
+        $hostidexistflag=1;
+      }
+    }
+    close(IN);
+    if ($hostidexistflag and !$lineexistflag) {
+      print &lt;&lt;END;
+WARNING: $lonHostID already exists inside
+loncapa/loncom/${lonCluster}_dns_hosts.tab.  The entry inside
+${lonCluster}_dns_hosts.tab does not match your settings.
+An entry inside ${lonCluster}_hosts.tab will be made
+with your new values.
+END
+      `grep -v "$lonHostID:" ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
+       open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
+         die("cannot open loncom/${lonCluster}_hosts.tab for output\n");
+         print(OUT $line2insert);
+       close(OUT);
+      `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
+      # email appropriate message
+      `echo "REPLACE:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "REPLACE:$lonCluster:$lonHostID:$protocol:$intdom:$date" installrecord\@mail.lon-capa.org`;
+    }
+    elsif ($hostidexistflag and $lineexistflag) {
+      print &lt;&lt;END;
+Entry exists in ${lonCluster}_dns_hosts.tab. Making duplicate entry in ${lonCluster}_hosts.tab
+END
+      `grep -v "$lonHostID:" ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
+       open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
+         die("cannot open loncom/${lonCluster}_hosts.tab for output\n");
+         print(OUT $line2insert);
+       close(OUT);
+      `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
+      # email appropriate message
+      `echo "STABLEUPDATE:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "STABLEUPDATE:$lonCluster:$lonHostID:$protocol:$intdom:$date" installrecord\@mail.lon-capa.org`;
+    }
+    elsif (!$hostidexistflag and !$lineexistflag) {
+      print &lt;&lt;END;
+New entry for $lonCluster.
+END
+      `cat ../${lonCluster}_hosts.tab &gt; ../new_${lonCluster}_hosts.tab`;
+       open(OUT,'&gt;&gt;../new_'.$lonCluster.'_hosts.tab') or
+         die("cannot open loncom/new_${lonCluster}_hosts.tab for output\n");
+         print(OUT $line2insert);
+       close(OUT);
+      `ln -s new_${lonCluster}_hosts.tab ../hosts.tab`;
+      # email appropriate message
+      `echo "INSERT:$lonCluster:$lonHostID:$date:$line2insert" | mail -s "INSERT:$lonCluster:$lonHostID:$protocol:$intdom:$date" installrecord\@mail.lon-capa.org`;
     }
-    `ln -s existing_hosts.tab ../hosts.tab`;
-    $flag=1;
-  }
-  elsif ($choice==26) {
-    $lonCluster='rawhide';
-    `rm -f ../hosts.tab`;
-    `ln -s rawhide_hosts.tab ../hosts.tab`;
-    $flag=1;
   }
-  else {
-
+  $lineexistflag=0;
+  my $domainexistflag=0;
+  if ($flag==1) {
+    `rm -f ../domain.tab`;
+    `rm -f ../dns_domain.tab`;
+    `ln -s ${lonCluster}_dns_domain.tab ../dns_domain.tab`;
+    open(IN,'&lt;../'.$lonCluster.'_dns_domain.tab');
+    while(my $line = &lt;IN&gt;) {
+      if ($line =~/^\Q$domaininsert\E$/) {
+        $lineexistflag=1;
+      }
+      if ($line =~/^\Q$perlvar{'lonDefDomain'}\E\:/) {
+        $domainexistflag=1;
+      }
+    }
+    close(IN);
+    if ($domainexistflag and !$lineexistflag) {
+      print &lt;&lt;END;
+WARNING: $perlvar{'lonDefDomain'} already exists inside
+loncapa/loncom/${lonCluster}_dns_domain.tab.  The entry inside
+${lonCluster}_dns_domain.tab does not match your settings.
+An entry will be made in inside ${lonCluster}_domain.tab
+with your new values.
+END
+      `grep -v "$perlvar{'lonDefDomain'}:" ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
+       open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
+         die("cannot open loncom/${lonCluster}_domain.tab for output\n");
+         print(OUT $domaininsert);
+       close(OUT);
+      `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
+      # email appropriate message
+      `echo "REPLACEdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "REPLACEdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
+    }
+    elsif ($domainexistflag and $lineexistflag) {
+      `grep -v "$perlvar{'lonDefDomain'}:" ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
+       open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
+         die("cannot open loncom/${lonCluster}_domain.tab for output\n");
+         print(OUT $domaininsert);
+       close(OUT);
+      print &lt;&lt;END;
+Entry exists in ${lonCluster}_dns_domain.tab. Making duplicate entry in ${lonCluster}_domain.tab
+END
+      `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
+      # email appropriate message
+      `echo "STABLEUPDATEdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "STABLEUPDATEdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
+    }
+    elsif (!$domainexistflag and !$lineexistflag) {
+      print &lt;&lt;END;
+New entry for $lonCluster.
+END
+      `cat ../${lonCluster}_domain.tab &gt; ../new_${lonCluster}_domain.tab`;
+       open(OUT,'&gt;&gt;../new_'.$lonCluster.'_domain.tab') or
+         die("cannot open loncom/new_${lonCluster}_domain.tab for output\n");
+         print(OUT $domaininsert);
+       close(OUT);
+      `ln -s new_${lonCluster}_domain.tab ../domain.tab`;
+      # email appropriate message
+      `echo "INSERTdom:$lonCluster:$lonHostID:$date:$domaininsert" | mail -s "INSERTdom:$lonCluster:$lonHostID:$date" installrecord\@mail.lon-capa.org`;
+    }
   }
 }
-
-}
 </perlscript>
 </file>
 </files>