[TriLUG] Opening up a closed port

[Jeremy Portzer]

On Thu, 2003-06-19 at 11:07, Jerry M. Howell II wrote:
> On Thu, Jun 19, 2003 at 10:58:18AM -0400, Jeremy Portzer wrote:
> > On Thu, 2003-06-19 at 10:51, Jerry M. Howell II wrote:
> > > Ok I know I should know how to do this
> > > but how do I open up a port thats closed.
> > > I have an app thats calling for port 3333.
> > > thnx.
> > 
> > Do you mean that you have a firewall running on your Linux server that's
> > blocking the port?
> > 
> > If so, you'll need to use the procedure documented by your firewall
> > script or program to allow access to that port.
> > 
> > What distribution, version, and firewall program are you using?
> > 
> Sorry about that, should have included that info in the last email. I am
> using slackware 9, no firewall. If I telnet or ssh to that port it just
> refuses conection. BTW, this app i'm tring to use is a gtk plugin to
> nagios.

If you're sure there's no firewalling rules setup, that error means that
the application server is not "listening" to the port.  You need to
start the application, at which point it will open the socket to listen
on that port, and begin accepting connections.

I've never used nagios, so I don't know the details, but there should be
a log file somewhere; perhaps that should indicate whether/why the
service isn't starting properly.

--Jeremy

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