SUSE Linux (SLES9) network error
Today, one of my SUSE Linux Enterprise Server (SLES9) encounter network error. The problem is the server and client can’t ping each other.
After checked the Cat5 cable using network tester, it shows the cable is working fine. Since the server already run for more than a year without my attention, I should ignore on the driver and OS part. But I still double check on its driver and protocol. I ping to itself and read though the event log file. After all, I found no error on software side. Hence, I suspect it was due to hardware problem, especially network card (NIC) error.
Configure the Network Card (NIC)
To make it work with minimum configuration, I decide to replace it with the same model network card. After boot up the system, it auto detect the NIC without any error. Now, I should put back its original TCPIP settings, including its IP address, subnet mask, gateway and DNS server name.