*filter

#  Allows all loopback (lo0) traffic
-A INPUT -i lo -j ACCEPT

#  Accepts all established inbound connections
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

#  Allows all outbound traffic
-A OUTPUT -j ACCEPT

# Allows HTTP and HTTPS connections
-A INPUT -p tcp --dport 80 -j ACCEPT
-A INPUT -p tcp --dport 443 -j ACCEPT

#  Allows SSH connections
#
-A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT

# Reject all other inbound
-A INPUT -j REJECT
-A FORWARD -j REJECT

COMMIT