Redhat 9 server internet dies, goes up on internal ping.
Hello guys. I am having problems with our server. The server appears down when accessed remotely, then it goes up when you ping from another machine on its internal network. this has been recurring many times each day. My server has Redhat 9 installed (with default kernel), 768mb of ram, realtek NIC (RT8139too or something like that), and has 70gb spare disk space. I wonder why it seems to be sleeping and wakes up when another machine pings it from inside. Another problem is that the datacenter doesnt see it as their fault because other machines does not exhibit the same behavior.
I tried changing from one router ports to another, all lead to the same result. Its really funny because it functions properly (all services are ok: apache, ssh, sql), but somehow, connection dies without evidence in the logs.
Also, how can I change ssh port from 22 to say 1034. hank you very much.