On 06/09/07, Chaim Keren-Tzion <[EMAIL PROTECTED]> wrote: > > I need to run an application that uses IRC as it's backend server. IRCD > usually runs on port 6667/tcp. Some firewalls are configured to block > outgoing traffic to all ports other than common ones like 80 etc. Would I be > able to make the app more accessible by running the IRCD on port 80 (or > using port forwarding from External_IP:80 to Internal_IP:6667 in my > firewall)? What would be the down side? Would certain firewalls block the > app just because it's sending non http traffic to port 80? Is this a > reasonable solution? Are there other better ones?
Here is a more direct answer than my previous one - OpenVPN can use SSL over HTTP: http://rendo.info/?p=67, and just generally if you use SSL on port 443 I don't think that a firewall can do anything about this but assume that it's legitimate https traffic. --Amos
