concurrent user logons

[djroot2]

Does anyone know a way to limit a user to one login session on AIX 4.3?

 

[Hars]

Execute this either in /etc/profile or some other location so that it runs everytime the user login

who | grep ${USER} | cut -c1-8 | wc -w

and check this count with the threshold.

if more then exit him out.. with the appropriate message.

Har

 

[sbix]

you have to modify the /etc/security/login.cfg stanza for the specific user
See man login.cfg

 

[djroot2]

in login.cfg does maxlogins apply to users specifically or is that a global setting? (ie having maxlogins = 64) does that mean a single user is aloud to login 64 times or does that mean 64 concurrent logins total?

 

[theycallmetim]

it's a global setting. I would use Hars's suggestion.

 

[sbix]

Yes but to use the hars advise you have to make the .profile not "breakable" by a Ctrl-C

 

[jpmnl]

The maxlogins attribute in locin.cfg indicates the maximum simutaneous logins allowed on the system.
This applies to all logins independent of which user.
It does not limit a specific user.
It is better to test it in /etc/profile as was suggested.

 

[theycallmetim]

How fast do you have to be to break an /etc/profile run? (just put it at the top)

I understand a .profile break (it gives you more time).

I don't think this will be a problem.

 

[bi]

djroot,

a Keyword Search of "limit login" yields a list of topics that expand on this. Here are a couple of the threads:

thread52-561019 and thread52-464630.

If you have maxlogins=64, that means that all users can log in 64 times. I believe with 4.3 AIX licensing was for unlimited users.