[squid-users] Transparent Proxy stops working after time

I have come across a strange problem, after what could be days, hours or
even 10 minutes my transparent proxy will just stop working. I have tried
to restart squid, flush and reset my firewall rules, restart NoCatAuth,
and in the end the only thing that will get this working again is a full
reboot.

The setup I'm using is this:

Slackware linux
kernel 2.4.20
Squid 2.5.STABLE4
iptables v1.2.8

My firewall rules seam to be unchanged when this takes effect, here is the
part for the transparent proxy:

Chain PREROUTING (policy ACCEPT)
target prot opt source destination
REDIRECT tcp -- 192.168.0.0/16 <ip removed> MARK match 0x4
tcp dpt:http redir ports 8080
REDIRECT tcp -- 192.168.0.0/16 anywhere MARK match 0x3
tcp dpt:http redir ports 8080
REDIRECT tcp -- 192.168.0.0/16 anywhere MARK match 0x2
tcp dpt:http redir ports 8080
REDIRECT tcp -- 192.168.0.0/16 anywhere MARK match 0x1
tcp dpt:http redir ports 8080
ACCEPT all -- 10.0.0.0/8 anywhere
ACCEPT all -- 1.0.0.0/8 anywhere
NoCat_Capture all -- anywhere anywhere
DROP tcp -- !localhost anywhere tcp dpt:8080

What is strange is that the sibling proxys are still able to use this as
their parent, and if you connect to port 8080 directly it will work (of
course this is with out the above DROP being in the rules).

I figure this might be an IPtables issue but hope to see if anyone has had
this issue or could point me in the correct location.

Regards
Received on Wed Mar 24 2004 - 23:44:06 MST