Nmap Hackers: Re: Nmap-2.00 doesn't recognize SSH?

["HD Moore" <hdmoore () usa net>]

That is a LOCAL system problem.  Nmap uses getservbynum to assign the
service name to the port/proto number.  If your /etc/services doesnt contain
an entry for SSH, it will show up as unknown.

A quick fix is this:

echo "ssh             22/tcp" >> /etc/services
echo "ssh             22/udp" >> /etc/services


> Hello.
>
> Why doesn't nmap-2.00 recognize SSH?  If I portscan mye computer here,
> you'll get this report;
>
> 21      open        tcp        ftp
> 22      open        tcp        unknown
> 53      open        tcp        domain
> 80      open        tcp        http
> 110     open        tcp        pop-3
> 113     open        tcp        auth
> 119     open        tcp        nntp