--- loncom/lonnet/perl/lonnet.pm	2005/09/26 22:16:58	1.651.2.5
+++ loncom/lonnet/perl/lonnet.pm	2005/09/20 07:56:23	1.657
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.651.2.5 2005/09/26 22:16:58 albertel Exp $
+# $Id: lonnet.pm,v 1.657 2005/09/20 07:56:23 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -767,6 +767,13 @@ sub validate_access_key {
 }
 
 # ------------------------------------- Find the section of student in a course
+sub devalidate_getsection_cache {
+    my ($udom,$unam,$courseid)=@_;
+    $courseid=~s/\_/\//g;
+    $courseid=~s/^(\w)/\/$1/;
+    my $hashid="$udom:$unam:$courseid";
+    &devalidate_cache_new('getsection',$hashid);
+}
 
 sub getsection {
     my ($udom,$unam,$courseid)=@_;
@@ -3775,6 +3782,8 @@ sub modify_student_enrollment {
 		   $cdom,$cnum);
     unless (($reply eq 'ok') || ($reply eq 'delayed')) {
 	return 'error: '.$reply;
+    } else {
+	&devalidate_getsection_cache($udom,$uname,$cid);
     }
     # Add student role to user
     my $uurl='/'.$cid;
@@ -4860,7 +4869,7 @@ sub metadata {
 	$metaentry{':keys'}=join(',',keys %metathesekeys);
 	&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
 	$metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
-	&do_cache_new('meta',$uri,\%metaentry,600);
+	&do_cache_new('meta',$uri,\%metaentry,60*60*24);
 # this is the end of "was not already recently cached
     }
     return $metaentry{':'.$what};
@@ -5890,7 +5899,7 @@ BEGIN {
     }
     close($config);
     # FIXME: dev server don't want this, production servers _do_ want this
-    &get_iphost();
+    #&get_iphost();
 }
 
 sub get_iphost {