Re: Internet connection on Linux

Sound likes a DNS issue. /etc/resolv.conf should contain valid DNS
servers. Note itself is not a valid DNS entry, unless you have the
entire Root13 repository in your /etc/hosts file. You could also be
blocking port 53 for the routing machine in the firewall. Or there could
be some strange routing issue. Or maybe it's running some sort of DNS
cache program like bind, dns_masq, squid, ..... and it's not working right
for the machine that's running it.

Normally I have the opposite issue. Works fine on the router, but does
not on the clients. There was also a number of quirks in recent history.
I don't know how old FC7 is, but it doesn't seem like it's the most
recent. At least not at the rate they were versioning two years ago. You
might check some /proc/sys/net/ipv4/ settings. Like tcp_window_scaling,
ip_dynaddr, ip_forward, ?????

HTH
.