limit number of logins per user 3

[andyraff]

I need to limit certain users on the amount of sessions that that can use

 

[ElgisRamon]

AIX doesn't have individual login controls to do that, but because it has an extensible login validation architecture you can create a script and set it up in the auth1 attribute for the users.

Try searching the help system for the file /etc/security/login.cfg... I've set up login controls by IP using a script and some little text files.

I hope it works...

 

[PSD]

andyraff,

You need to put something ( thoroughly tested) in /etc/profile. Use the count variable to limit the number of sessions per user...

something like

count=`who | grep $LOGIN | wc -l`
if [ $count >= 2 ]
then
echo "you are already logged in elsewhere. Please log out of there
and re-login"
sleep 10
exit 0
fi

Cheers

PSD
HACMP Specialist

 

[rmbowie]

A brief version of the example from "The AIX Survival Guide" by Andreas Siegert, pub. Addison-Wesley might clear this up:

Add a script to /etc/security, myscript
-----------------

#!/usr/bin/ksh
trap "" 1 3 4 6 8 13 15 17 21 22 30 31
PATH=/usr/bin
MAX=2
NUM_LOGS=`who|egrep "^$1"|wc -l`
test "$NUM_LOGS" -lt "$MAX" && exit 0
exit 1

---------------------

now add the following to /etc/security/login.cfg

MAXRULE:
program = /etc/security/myscript

then edit /etc/security/user

for each user that you want to apply this rule(or default):

username:
auth1 = SYSTEM,MAXRULE

HTH

-Bowie