UNIX for Dummies Questions & Answers

Hello - Could anyone please explain what is login class in unix..? is it supported by Linux, AIX, HP-UX, Solaris?

Also how do we update this when a user is created? I looked into man pages for useradd/usermod and mkuser, but could not find any option to add/update login class for a user.

Please help.

Thanks,
Manju

In what context is it used? Where did you find/read about it?

I actually work on a project where in, i need to write java code to create/modify/delete users on unix systems. One of the requirement is to update users login class. I did some googling, but could not undertsand much. Please help.
Thanks!

I am not sure if "login class" is the correct word. In terms of Java, maybe this contains functions/methods (I have no clue of Java) that can be used to alter user and group parameters like those that are stored in /etc/passwd, /etc/group etc. Though, many derivates have different location of their parameters. AIX for example uses more files than those 2 up there to store information and also has different commands to administer users than for example Linux.
No clue what possibilities this Java class provides in terms of different OSes.
I guess you could always use something like system() (no clue how such a thing is called or looks in Java) to call underlying commands of the operating system.

Hi Zaxxon - The doubt was regarding login class of a particular user in Unix. Using Java I need to update this (which is not an issue).

It should be some user parameter like user's home directory OR password etc... Have you heard this (login class) in Unix?

I checked rfc2307 (description of user attributes for LDAP) but no luck. Though I found this:
UNIX man pages : login.conf (5)

My guess is it is a BSD specific term.