We have a box serving as a router/ipmasq, smb/cifs server, webserver,
sql server, and email and dns host. this box has two nic's, one w/
a private address, the other with a public. every once in awhile
nothing can be accessed via the private address and/or the public address.
when this happens, i can't telnet to the private address (it just hangs), but
i can to the public. ipmasq continues to work (all the pc's have private
addresses and can access the internet fine), but nobody can send or receive
email internally (externally 'netstat' shows incoming connections fine, when
netstat doesn't freeze). Also, when this occurs i usually cannot get netstat or
ipchains to list anything; they usually both hang.
is it reaching its process limit? i used to run portsentry, and thought that
that was the problem. when i killed it, everything would be fine. but, now
it happens even when portsentry isn't running. the machine has 128MB
of memory. should i increase the process limit and recompile the kernel,
or is it something else? the machine has been up for a couple of months now,
and this problem only lasts for a few minutes.
thanx a million. this is a bit frustrating.
Bill
MIS, JINSA
