Network problems

[Marc M]

Are the lights on, on the switch's ports that you are using? Have you 
rebooted the switch? Are you able to connect with other machines or ports 
(say a laptop)? Is the light working on the nic? Cabling good? If you have 
multiple nics you should stop/start them and see if you can get one to work, 
sometimes one works when another won't. service network stop, ifup eth0, 
ifup eth1, etc. Look at your dmesg and see whether it finds your eth0 or 
eth1, that'd be nice to know....

If you are able to narrow it down to the one FC2 box (and within the os), 
then I would say that lastly you should run a chkrootkit utility on the box 
to see if you have been own3d. 

Cheers
Marc


On 4/14/05, Thomas E. Dukes <edukes at alltel.net> wrote:
> 
> Hello,
> 
> This is strange! I don't even know where to start. Everything was working
> fine until yesterday about 1:00PM.
> 
> I am running a FC2 system. I have a dynamic ip using ddclient to update. I
> run ifconfig and I have an ip address. I can ping it with no problem. I
> can ping other internal hosts. My ip is current with my dynamic dns
> provider.
> 
> I have changed out network cards and even bought a new switch. Still no
> internet connectivity. DSL modem works fine as it is currently connected 
> to
> this PC. So its not an ISP or modem problem.
> 
> I have not updated any packages since 04-01-05. I have been out of town 
> ten
> days and was able to access my server remotely, even yesterday morning. I
> have made no changes to any files. Internet connectivity just stopped.
> 
> Any ideas where to begin? I have been looking over logs and don't see
> anything wrong.
> 
> TIA
> 
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