[dba-Tech] Port 80

You misunderstand Arthur's problem.

While lots of applications can send on a port, only one application can hook a 
port and listen on it at a time.  

He wants to set up something to listen on Port 80 but another program has already grabbed it 
and is listening for income traffic.  He is trying to find out what that program is.


On 14 Aug 2013 at 16:20, Jim Lawrence wrote:

> A lot of programs use port 80 so that should never be an issue.
> 
> If you are using a router and have blocked port 80 blocked that will
> cause such an error. Some programs may demand exclusive rights to a
> port but that tends to be databases and no database I am aware of
> defaults to port 80. My bet is it is nothing to do with the port being
> blocked and is that in a particular application's configuration file
> that has been configured wrong. 
> 
> Why don't you try this; check and copy your external IP address:
> http://www.whatismyip.com and then put that IP address  in the
> "Lookup" field, enter, select portscan and you can then see all the
> ports that are open to the world. 
> 
> Jim  
> 
> ----- Original Message -----
> From: "Arthur Fuller" <fuller.artful at gmail.com>
> To: "Discussion of Hardware and Software issues" <dba-tech at databaseadvisors.com>
> Sent: Wednesday, August 14, 2013 9:06:34 AM
> Subject: [dba-Tech] Port 80
> 
> I've got a conflict on port 80, and try as I might, I cannot figure out
> which app is using it. I've tried netstat -o and the resulting list
> contains no references to port 80. I'm really stumped on this one. Any
> suggests gratefully appreciated.
> 
> Incidentally, how does one get to the Control Panel in Windows 8? Perhaps
> I've unwittingly enabled IIS, which I believe defaults to port 80.
> 
> TIA
> -- 
> Arthur
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