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Re: turning on verbose logging for iptables?



Dave Price écrivait :
> My hope is that iptable's log output can give me the clue I need to tell
> the other site what they need to open up on their end to get the
> connection to pass thru.

You may just need something like this :

  iptables -N LOGIT # special chain to log all except fragments

  iptables -A LOGIT -m state --state ESTABLISHED -j RETURN # don't log frags
  iptables -A LOGIT -j LOG
  iptables -A LOGIT -j RETURN

  iptables -I FORWARD -s $sourceIPtoSpy -j LOGIT
  iptables -I FORWARD -d $sourceIPtoSpy -j LOGIT

It will not change anything in your firewall rules except it will log
*everything* (except fragments) from that $sourceIPtoSpy.

Cheers, J.C.


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