need to enable port 1810 on redhat 7.3
 

When i installed redhat 7.3 i chose no firewall option and now the ports are all being denied. I want to enable the firewall and choose a tool like gikkit to enable the ports. how do i enable the firewall. can i do it with kde or gnome or which file to edit. im setting up oracle to connect from win xp to the enterprise manager on the linux server. samba and name resolution are working now with swat. telnet access is working although i should probably switch it to ssh. pls do help.

not sure on rh 7.3.
try installed www.webmin.com
that is a web based admin software, it has a web based setup for firewalls.

enabling port 1810
 

the problem with that is that webmin needs to run on an http port but i dont know how to enable the http port that i select for it. otherwise, its gonna say connection refused.

webmin supports all red hat versions, it will edit the appropriate files, i believe that is /etc/services for red hat, so webmin will work.

EDIT
also you can access webmin through localhost:10000 that shouldn't be blocked by any firewall