Do I need these ports open?
Rick Stevens
rstevens at internap.com
Thu Apr 19 17:47:07 UTC 2007
On Thu, 2007-04-19 at 07:36 +0200, Manuel Arostegui Ramirez wrote:
> El Miércoles, 18 de Abril de 2007 06:22, Simon Slater escribió:
> > Hi all,
> >
> > Just a quick question arising from following another thread. Here is
> > the result of nmap on a FC6 box:
> >
> > $ nmap localhost
> >
> > Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-04-18 14:10
> > EST
> > Interesting ports on localhost.localdomain (127.0.0.1):
> > Not shown: 1670 closed ports
> > PORT STATE SERVICE
> > 22/tcp open ssh
> > 25/tcp open smtp
> > 111/tcp open rpcbind
> > 139/tcp open netbios-ssn
> > 445/tcp open microsoft-ds
> > 631/tcp open ipp
> > 670/tcp open unknown
> > 696/tcp open unknown
> > 946/tcp open unknown
> > 2049/tcp open nfs
> >
> > Nmap finished: 1 IP address (1 host up) scanned in 2.036 seconds
> > $
> >
> > What are the 3 "unknown" open ports? Also I cannot find rpcbind,
> > netbios-ssn nor microsoft-ds under System>Services. What are these
> > services for?
> >
> > Thanks
> > Simon
>
> vacdsm-sws 670/tcp # VACDSM-SWS
> vacdsm-sws 670/udp # VACDSM-SWS
> rushd 696/tcp # RUSHD
> rushd 696/udp # RUSHD
>
> There's no information about 946 in the /etc/services, though
Try "netstat -lpn | grep :946" to see what's listening on that port.
Remember, lots of programs will open ports and listen, and they're
not necessarily the ones listed in /etc/services.
----------------------------------------------------------------------
- Rick Stevens, Principal Engineer rstevens at internap.com -
- VitalStream, Inc. http://www.vitalstream.com -
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- A day for firm decisions!!! Well, then again, maybe not! -
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