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Full Discussion: login consol to foreign ip
Special Forums Cybersecurity login consol to foreign ip Post 302439315 by SimonSalman on Friday 23rd of July 2010 08:22:35 AM
Old 07-23-2010
login consol to foreign ip

every time, root (or any other user) logs into the system (Suse 9.3 Linux mail server) a connection to a foreign ip (96.124.236.183) shows up.
It shows up even when I plug out the network cable and then restart the system.

I don't know if this is a security hole and how to find out more about it.

Thanks,
Simon

Code:
last -i

root     pts/1        0.0.0.0          Thu Jul 22 13:35   still logged in   
root     pts/0        0.0.0.0          Thu Jul 22 13:34   still logged in   
root     :0           96.124.236.183   Thu Jul 22 13:34   still logged in   
root     :0           0.0.0.0          Thu Jul 22 13:34 - 13:34  (00:00)    
root     pts/2        0.0.0.0          Thu Jul 22 12:06 - 12:08  (00:01)    
root     pts/1        0.0.0.0          Thu Jul 22 12:06 - 12:08  (00:02)    
root     :0           96.124.236.183   Thu Jul 22 12:05 - 12:08  (00:02)    
root     :0           0.0.0.0          Thu Jul 22 12:05 - 12:05  (00:00)    
reboot   system boot  0.0.0.0          Thu Jul 22 14:04          (00:-24)   
root     pts/1        0.0.0.0          Thu Jul 22 11:59 - 12:01  (00:01)    
root     pts/1        0.0.0.0          Thu Jul 22 11:53 - 11:59  (00:06)    
root     pts/0        0.0.0.0          Thu Jul 22 11:53 - 12:03  (00:10)    
root     :0           96.124.236.183   Thu Jul 22 11:52 - 12:03  (00:10)    
root     :0           0.0.0.0          Thu Jul 22 11:52 - 11:52  (00:00)    
reboot   system boot  0.0.0.0          Thu Jul 22 13:51          (-1:-48)   

last -a

root     pts/1        Thu Jul 22 13:35   still logged in    
root     pts/0        Thu Jul 22 13:34   still logged in    
root     :0           Thu Jul 22 13:34   still logged in    console
root     :0           Thu Jul 22 13:34 - 13:34  (00:00)     
root     pts/2        Thu Jul 22 12:06 - 12:08  (00:01)



---------- Post updated 23-07-10 at 02:22 PM ---------- Previous update was 22-07-10 at 02:53 PM ----------

Do you need more information? Is my problem to trivial?


I really would like to understand why this ip address appears at each log in. And further how much of a security issue this might be.
 

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NWUSERLIST(1)							    nwuserlist							     NWUSERLIST(1)

NAME
nwuserlist - List Users logged in at a NetWare server SYNOPSIS
nwuserlist [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] [ -a ] [ -q ] [ -f [ -d ] [ -D ] [ -t ]] DESCRIPTION
nwuserlist lists the users logged in at a NetWare server, together with their connection number and their login time. nwuserlist looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more informa- tion. Please note that the access permissions of $HOME/.nwclient MUST be 600 for security reasons. OPTIONS
-h -h is used to print out a short help text. -S server server is the name of the server you want to use. -U user user is the user name to use for login. -P password password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwuserlist prompts for a password. -n -n should be given if no password is required for the login. -C By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off this conversion by -C. -a With option -a the IPX address of the station the user is logged in from is printed as well. -q With option -q object ID is printed in addition to user name. -f List also files opened by each connection. -d List detailed informations about each file. -D List DOS filename instead of filename which was used for opening. -t Show raw hexadecimal values in addition to human readable conversions. AUTHORS
nwuserlist was written by Volker Lendecke. See the Changes file of ncpfs for other contributors. nwuserlist 7/22/1996 NWUSERLIST(1)
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