Check to see who (and from what IP) was the last to log into your 
machines (is the command also "last" under slack?  'not sure...).  You 
could also look at /var/log/secure and /var/log/messages to see if 
anything odd has been happening over the past day or two.

Garrett

B_o_B wrote:

>Friday, January 16, 2004   @   9:17:44 PM Central Standard Time
>
>Hello, and a good day to you all.  I run a couple slackware 9.1 boxes where
>I work for our Internet related services.  I like to use nmap to make
>sure I am running only the services I need.  While nmap'n both these
>boxes today I noticed something I have not seen before.  All of a
>sudden both boxes are listing this:
>
>Port        State      Service
>1720/tcp    filtered   H.323/Q.931
>also
>690/tcp     open       unknown  # this has also appeared on one of
>                                # boxes.
>
>I'm kinda concerned.  I have not introduced, or turned on any new
>service.  I did upgrade the kernel on both boxes to 2.4.24 since I last ran nmap I
>think.  Could the new kernel be doing something with this port 1720?
>Or perhaps, someone it exploiting my machines?  Hope not.
>I can't figure out the 690 port either.
>
>here are the ip's of the boxes in question
>64.122.144.195
>64.122.144.196
>
>Any thoughts would be greatly appreciated to help solve my mystery.
>
>Many Thanks,
>
>Robert (aka B_o_B) David Felix De Mars
>West Longitude 90' 15' 43"
>http://b-o-b.homelinux.com
>
>
>_______________________________________________
>TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>http://www.mn-linux.org tclug-list at mn-linux.org
>https://mailman.real-time.com/mailman/listinfo/tclug-list
>
>  
>




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