I have a Debian 6.0 server and everything was running fine with it. This server is my environnement so I can develop web application.
Since yesterday, the server is doing something to the network and I don't know how to find the source. Everytime the server is plugged in the network, the switch and the router go crazy and the network doesn't work fast anymore. I get 2654ms when I ping Google. However, when I ping another computer I still get 1ms. This only mean that the problem is between my server and Internet. The router is so busy that he don't answer when you contact it. If I unplug my server, everything goes back to normal. If I plug it back, I can see the LED on the switch flashing crazy like it's gonna blow.
Is there a way to isolate the problem ? I have no clue at all.