Re: FW: Security Concerns

Hi John,

On Freitag 26 September 2003 20:49, John Hart wrote:
> Had mail probs...please see below.
>
> John Hart
> WareOnEarth Communications, Inc.
> [email protected]
> Office:  843.529.0678 x116
> Cell:  843.810.8434
>
>
>
> -----Original Message-----
> From: John Hart [mailto:[email protected]]
> Sent: Friday, September 26, 2003 1:32 PM
> To: [email protected]
> Subject: Security Concerns
>
>
> Hello all, I have a security question:
>
> After loading and getting the OpenMosix kernel to run, I noticed that many
> ports have opened up:
>
> Tcp: 723
> Tcp: 4660
> Tcp: 22 (secure shell, this is mine)
>
> Udp: 22 (secure shell, this is not mine)
> Udp: 5428
> Udp: 239.192.0.1:1334 (I have no idea what this is going to, nslookup shows
> nothing)

mhmmm, looks strange, no idea either
the others are definitly openMosix ports.

>
> I am trying to secure this box so that nothing except secure shell
> requiring password gets in/out (this is the controlling node).  When I load
> the Redhat kernel (2.4.20-8smp) the only port that is "open" is 22, ssh. 
> These ports are definitely related to OpenMosix, so do I have to block them
> at my router to pre-empt any potential problems?

yep, correct. 
Even better is to block everything on a firewall 
expect that what you really need  ;) 

>
> As Always, thanks for all the help!
>
> John Hart
> WareOnEarth Communications, Inc.
> [email protected]
> Office:  843.529.0678 x116
> Cell:  843.810.8434
<snip>

have a nice weekend,

Matt
-- 
E-mail	:  [email protected]
www	: http://www.openmosixview.com
an openMosix-cluster management GUI

Since I have learned from my mistakes, why do I not know everything?



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