1. Can't see the outside network, but outside can see in - problem.
I have a Linux system setup mainly for ipmasqing to my internal network, and
it also uses fetchmail to rove around and pick up mail. It had been running
fine for about 3 weeks - and then it stopped being able to make outbound
incoming ftp, telnet, http, nfs, samba - basically everything. It has
no monitor or keyboard but I can telnet in no problem.
The routing of the internal network to the Internet works extremely well.
What doesn't work.
When I'm logged on to the machine, I can not telnet out, ftp out, or
anything out, thus it is not picking up my mail or sending mail - basically
any outbound connection does not work.
I can't even 'telnet localhost' or connect in anyway to localhost.
I'm after suggestions as how to fix this. I've read all my logs and they
are no different than when the system worked great.
Oh yeah - it works for a period of ten minutes up to 3 hours after I reboot.
So to make sure my mail service does not get disrupted I've been having to
reboot every 1 - 3 hours when I'm around.
Any suggestions or insights would be appreciated.
System: Debian 2.0 (hamm/frozen)
486SX-25 / 8mb RAM
2 D-Link DE-220T Network cards (one to cable modem).
ProFTPd and Apache always running - everything else run out of inetd.
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