Re: Open ports in Debian
On 00:54 Wed 23 Nov , Rutger Wessels wrote:
> Hello,
>
> I administer a debian installation that is connected to the Internet.
> When I run nmap, I found the following:
> Starting nmap 3.81 ( http://www.insecure.org/nmap/ ) at 2005-11-23 00:29 CET
> Interesting ports on xxxxxxxxxx
> (The 1657 ports scanned but not shown below are in state: closed)
> PORT STATE SERVICE
> 22/tcp open ssh
> 25/tcp open smtp
> 80/tcp open http
> 111/tcp open rpcbind
> 113/tcp open auth
> 903/tcp open iss-console-mgr
>
> 22,25,80 that are the ones I understand. But what are the other ones? Is
> it harmful to have them open?
You can grep 113 /etc/services and find many services.
Also you scanned 1657 ports with nmap. To scan more add the ports
option:
-p 20-65535
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