link to the server is down after sometime
I installed CentoOS in one machine with AMD opetron processor. I am using static DHCP to assign its IP address 192.168.0.100. I can ssh to this machine from other machines. But after several hours, I cannot ssh to that machine anymore. But after I login that machine, run firefox and access internet once, then I can access that machine from other machines.
How can I debug this issue? Is it because after several hours, this machine is hibernating or my router issue?