Re: closing unwanted ports - and what is 1720/tcp filtered H.323/Q.931

[kevin bailey <kbailey@freewayprojects.com>]

Will Maier wrote:

> On Thu, Dec 15, 2005 at 12:35:09PM +0000, kevin bailey wrote:
>> these ports seem to be open by default on a standard sarge setup
> [...]
> 
> Not a standard, default setup; you've installed and enabled other
> services which aren't turned on by default.
> 
>> the server will just be serving email and websites so can these
>> services be turned off?
> [...]
> 
> Yes, those services can be turned off in most environments; still,
> you should verify that there aren't any users for them before
> removing them entirely.
> 
>> what is
>> 1720/tcp filtered H.323/Q.931
>> ?
> 
> H.323 is usually used by Voice Over IP applications. To find out
> what particular application on your server is listening on that
> port, try the following:
> 
>     # lsof -Pni :1720

thanks for the help

> 
>> and how do i turn it off if it is uneccessary.
> 
> This depends very much on the particular application; it may be
> started in rc.d or via inetd.conf.
> 
> Most of these questions are asked rather frequently; their answers
> can be found in the archives and on google.
> 

i did have a quick look but nothing much eemed to come up RE this particular
response - will look further,

thanks,

kev