FW: Security Concerns

"John Hart" <[email protected]> Fri, 26 Sep 2003 14:49:11 -0400
Newsgroups gmane.linux.cluster.openmosix.mosixview
Message-ID <[email protected]>
Had mail probs...please see below.

John Hart
WareOnEarth Communications, Inc.
[email protected]
Office:  843.529.0678 x116
Cell:  843.810.8434
=20


-----Original Message-----
From: John Hart [mailto:[email protected]]=20
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)

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?

As Always, thanks for all the help!

John Hart
WareOnEarth Communications, Inc.
[email protected]
Office:  843.529.0678 x116
Cell:  843.810.8434
=20



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