I'm running a server in my dorm room on Fedora Core 4, and all of a sudden it stopped being able to access the internet. I know that the port is ok, and I know that the network card works because I use it as a file server and everything seems to be fine that way. The problem is that I can't get to the internet at all. My laptop has no problems getting to the internet, and my server didn't when I got here initially.

To try and troubleshoot the issue, I decided that I would try to ping something, and so I started with my laptop which came back fine, but when I tried to ping 127.0.0.1, it would simply sit there forever. I can give some configuration settings if you want... any help would be greatly appreciated.

-Jalsk

eth0 Link encap:Ethernet HWaddr 00:60:97:B6:75:E1
inet addr:199.104.2.247 Bcast:199.104.2.255 Mask:255.255.255.0
inet6 addr: fe80::260:97ff:feb6:75e1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:115387 errors:0 dropped:0 overruns:0 frame:0
TX packets:64188 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:85826216 (81.8 MiB) TX bytes:24765335 (23.6 MiB)
Interrupt:11 Base address:0xd800

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 * 255.255.255.0 U 0 0 0 eth0
199.104.2.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0

Re start the network services to see what happens .

actually, it does this consistently even if I restart the network services. Even if I restart the computer, it still continues to do this.

Try turning your firewall off :

/etc/init.d/iptables stop


Also check your host file. It should have something like:

127.0.0.1 localhost.localdomain localhost

I just checked that, the firewall is disabled and not running, and the appropriate information is in my host file. I just found out something kind of interesting... I can ping 127.0.0.1 if I SSH into my server as root, yet when I'm running Konsole in KDE, I can't. I don't understand it.