[Openswan Users] Issue with openswan opening a TCP port that conflicts with another service

Elison Niven elison.niven at elitecore.com
Tue Jul 31 08:23:13 EDT 2012


I think you may be calling "service ipsec xxx" using execve or system() 
from another program.
Is it so ? TCP port 3082 might be opened by your program that invokes pluto.
Your child process inherits every open file descriptor from the parent, 
including the sockets you opened.

On Tuesday 31 July 2012 07:57 AM, Willie Gillespie wrote:
> On 07/30/2012 04:54 PM, Igor Lasic wrote:
>> Hello Muhammad, thanks for responding.
>> I am seeing TCP port 3082 opened as in below. We have also tried with
>> port 3081 and got the same result where pluto took it.
>> Unfortunately we cannot guarantee the order in which services will start
>> and cannot use other means such as SE security.
>> netstat -nap | grep 3082
>> *tcp        0      0* LISTEN
>> _7450_/sh*
> Very strange.  My installs only show they are listening on UDP/500 and 
> UDP/4500.
> They also show the PID/pluto (instead of the PID/sh that yours show).
> Do you think something is messed up with your installation?
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Best Regards,
Elison Niven

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