cvs problem with iptables

Andy Green andy at warmcat.com
Thu Aug 18 09:41:14 UTC 2005


On Thursday 18 August 2005 10:19, Ankush Grover wrote:

> When I ran this tcpdump port 2401 and port 2402 it catched

Sorry, my mistake, for this (bad) example I meant or instead of and.

> nothing.Then I ran only tcpdump
> This is what I get with tcpdump
>
> P jyotsna.sunupdelhi.net.2022 > linux.sunupdelhi.net.cvspserver: S
> 1071826300:1071826300(0) win 65535 <mss 1460,nop,nop,sackOK>

cvspserver is port 2401.

> 14:35:51.661234 IP linux.sunupdelhi.net > jyotsna.sunupdelhi.net: icmp
> 56: host linux.sunupdelhi.net unreachable - admin prohibited

iptables is denying access to it.  The question is, is linux.sunupdelhi.net in 
the range 192.168.1.0/24?  Run iptables again with -n to see IPs unresolved 
(and use -n -n to see port numbers too) .

-Andy
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