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Old 11-15-2012, 08:35 AM   #1
Registered: Oct 2006
Location: india
Distribution: fedora 8, ubuntu 10.10
Posts: 318

Rep: Reputation: 34
multiple instances of Postgres SQL are listening on port 7337

hi all,
I am using ubuntu 12.04 on my laptop and I have also metasploit framework installed on it.
I have noted that , even when I am not using the framework, I have about six instances of PGSL service listening on port 7337. The relevant extract fo output of the netstat command is as under :-
tcp 0 0* LISTEN off (0.00/0/0)
tcp6 0 0 ::1:7337 :::* LISTEN off (0.00/0/0)
tcp6 0 0 ::1:39147 ::1:7337 ESTABLISHED keepalive (1170.74/0/0)
tcp6 0 0 ::1:39145 ::1:7337 ESTABLISHED keepalive (1146.16/0/0)
tcp6 0 0 ::1:39155 ::1:7337 ESTABLISHED keepalive (1232.18/0/0)
tcp6 0 0 ::1:7337 ::1:39145 ESTABLISHED keepalive (1146.16/0/0)
tcp6 0 0 ::1:39146 ::1:7337 ESTABLISHED keepalive (482.57/0/0)
tcp6 0 0 ::1:7337 ::1:39146 ESTABLISHED keepalive (482.57/0/0)
tcp6 0 0 ::1:39144 ::1:7337 ESTABLISHED keepalive (1162.54/0/0)
I understand that the last few are for tcp version 6 , but do I need them ? If not how to close these down?
Next as I understand only one service is running on port 7337 then why so many entries in the netstat output and so is in the case of conky's display ?
Lastly, should I have PGSQL running even when I donot need it, by which I mean when I am not using the metasploit framework. Surely, I donot use it always, so can't I have the PGSQL service starting only when I start metasploit framework ?

thanks in advance for your help and suggestions
Old 11-16-2012, 01:03 AM   #2
Registered: Apr 2006
Location: Montreal,Quebec
Distribution: Gentoo
Posts: 825

Rep: Reputation: 129Reputation: 129

If you really think you are not using anything using postgres, you can shut it down. As for why all this, I find it amazing so much is using IPv6, but you have to understand that netstat list connections, not only LISTEN. As you can see, you only have one LISTEN per IP version, so only 1. The other are ESTABLISHED _connections_ to Postgres. So _something_ is using it after all. Most likely metasploit web gui / ruby on rails and other things like that. So before stopping PGSQL, track down what's using it and shut them down first.


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