How can I restrict user from multiple login?

[HKNinja]

Hi,

As the subject, how can I restrict users from multiple login to the HP-UX server? I want to be able to restrict the number of simultaneous sessions but don't know how to do it. I checked SAM with no result. Please help. Thank you.

 

[dcu74]

Regarding which version of HPUX you use, there is a special file named /etc/default/security where you can set this parameter.
I have found it on internet when looking for something else.
It was said to work under HPUX 11i but I have tried it with HPUX 11 and it works fine.


Here is an example :

NUMBER_OF_LOGINS_ALLOWED=3
SU_ROOT_GROUP=su_group
NOLOGIN=1

The first one is self explainable.
The second one prevents user to issue a su command if they do not belong to the name group (even with the root password).
The third one is to prevent logging under / if the user directory is missing.

 

[HKNinja]

Thanks for your reply, dcu74, but I can't find the security file. Under /etc/default, there're no security. My server is HP-UX 9000.

 

[mok123]

Hi,

You'll need to vi .profile of that user. Do this:

# Limit number of logins allowed
Times_allowed=2
Time_in=` who | grep $LOGNAME | wc -l `
if [ $Time_in -gt "$Times_allowed" ]
then
echo "$LOGNAME is already logged in $Times_allowed times!"
sleep 3
exit
exec /bin/login
fi

Then you'll have to chmod 444 and chown root .profile.

Hope this will help.

cheers,

Mok