Re: [cobalt-users] Dumb Memory Question

[Jacob Winther <jacob@xxxxxxxxxx>]

The leftmost column indicates what sort of connection you have.

Tcp and udp are the two common IP types.

Unix is an internal method for communication between applications, so it 
looks like PostgresSQL is listening for internal connections from other 
applications.

This is the way unix applications communicate and is by no means a 
security risk.  If you run netstat -a, you will see many more of them.

To stop these being displayed, netstat has a couple of other switches:

-t	tcp
-u	udp
-l	listening
-a	all
-p	display the program attached to the port
-n	display port numbers instead of names

You can bunch these all together, so
netstat -tulnp

will display all port numbers listening for connections on any udp or 
tcp port and what application is listening for each port.

these should be all you need to keep tabs on you ports

I suggest typing 'man netstat' for more info

J.


On Sunday, January 13, 2002, at 07:35  am, Nell Bolen wrote:

> Perhaps the Postgres DB that runs the Cobalt GUI, etc.?
>
> Wayne Sagar wrote:
> > > etc/services will list the servies ;P
> >
> > Got me to thinking, so I did the command suggested.. got this.
> >
> > [root /]# netstat -an| grep LISTEN
> > tcp        0      0 0.0.0.0:25              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:80              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:22              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:143             0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:110             0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:81              0.0.0.0:*               
> > LISTEN
> > tcp        0      0 0.0.0.0:444             0.0.0.0:*               
> > LISTEN
> > unix  0      [ ACC ]     STREAM     LISTENING     416    
> > /tmp/.s.PGSQL.5432
> >
> > I know what all of them are and have them either open or closed via
> > ipchains, with the exception of that last one.. What ta heck is
> > /tmp/.s.PGSQL.5432??
> >
> > Don't tell me, let me guess.. it's a cobalt thing??
> >
> > WS
> >
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