When I set up the installation I chose the 'higher' security setting and I think because of this it's closed or stealthed all the ports so nothing on the network can get to it. For example, I can't ping it from my XP machine even though I know it is on the network, how do I enable ICMP traffic to it to make it 'pingable'? If I check the status page on my router, it shows a DHCP address has been allocated to but the host name is blank -- how do I make it send the host name?

Also how do I open port 25 for SMTP traffic and port 22 for SSH telnet? It would be pretty handy as I can access it over the Internet using Webmin but currently the SSH/Telnet Login feature currently doesn't work.

Sorry for so many questions .. I hope someone can help me!