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

[Rolf Kutz <kutz@netcologne.de>]

* Quoting kevin bailey (kbailey@freewayprojects.com):

> hi,
> 
> these ports seem to be open by default on a standard sarge setup 
> 
> PORT     STATE    SERVICE
> 21/tcp   open     ftp

This is not part of the default install.

> 25/tcp   open     smtp

This is only open to localhost.

> 80/tcp   open     http
> 110/tcp  open     pop3
> 143/tcp  open     imap
> 443/tcp  open     https
> 1720/tcp filtered H.323/Q.931

This is not part of the default install.

> what is 
> 1720/tcp filtered H.323/Q.931
> ?

`netstat -tulpen` shows you the listening UDP/TCP
services and the corresponding program names.

> and how do i turn it off if it is uneccessary.

Uninstall the program or edit the configuration
files for the services, edit /etc/inetd.conf,
/etc/hosts.allow. 

- Rolf