Subject: (no subject)
From: Cory Riddell (bor@c-riddell.com)
Date: Fri Sep 21 2001 - 18:26:30 EDT
I have a 3-machine network. My server/firewall is a RH7.1 machine
(basicaly a fresh install). It has two NICs. eth0 goes to the
internet and eth1 connects to my two other machines (pc and an iMac).
I ran lokkit, selected high security and marked eth1 as a trusted
device. Then:
ipchains -P forward DENY
ipchains -A forward -i eth0 -j MASQ
and ip_forward is on.
I've also setup Samba for the PC and
netatalk-1.4b2+asun2.1.4-0.i368.rpm. The pc works flawlessly. The
iMac works great for a while (internet, printing on a printer
connected to the server, etc..) But after 5-30 minutes, the mac is
no longer able to see the internet. I can still ping the mac and the
mac can still see a shared directory on the linux box, but it cannot
see the internet. No http, and no email.
Any ideas? How do I go about diagnosing a problem like this?
ifconfig tells me:
eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX
inet addr:XX.XX.XX.XX Bcast:XX.XX.XX.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:121781 errors:0 dropped:0 overruns:0 frame:0
TX packets:4935 errors:0 dropped:0 overruns:0 carrier:0
collisions:171
eth1 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
EtherTalk Phase 2 addr:65280/178
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:120865 errors:0 dropped:0 overruns:0 frame:0
TX packets:4831 errors:0 dropped:0 overruns:0 carrier:0
collisions:666
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
EtherTalk Phase 2 addr:0/0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
Please help!
Thanks,
Cory
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