Hello, I'm new to Linux and I've inherited a Webmin controlled firewall. I'm used to using a SonicWall firewall and just can't seem to get the hang of the Linux firewall. My problem is I need to allow Outlook Web Access through to a server. OWA is installed and can be used internally by going to the server i.e. http://server/exchange We have an IP address I can use to connect with but I just can't seem to let any traffic through to the server, let alone just port 80 and 443. Are there any firewall gurus that can give me some help please? Cheers, Pablo