Basically, they have problems connecting to other machines
running 2.2.1, or to SGI Irix 5.3; they connect fine to all other
machines on the network (Linux/Intel 2.0.x, FreeBSD 3.1, Digital
Unix, AIX and perhaps others). Hosts running Linux 2.2.1 or Irix
do respond to ping, but telnet, rsh, ftp, imap no longer work: it
just says "Connected to ..." and hangs there. Vice versa, a Linux
2.2.1 machine can no longer telnet into this one -- but an Irix
machine can telnet in, only telnetting out is blocked.
The first time this happened, 6 days ago, I tried manually
restarting all network services, inetd, etc. It didn't work.
Eventually a reboot cured the problem. Now the identical problem
has cropped up on another machine with a near-identical
configuration and same kernel. In both cases it was after
exactly 48 days of uptime. Since all other services were manually
restarted I think it's a kernel problem.
Has this been seen before, and is it fixed in the newer kernels?
Thanks
Rahul.
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