topic Re: Same password for different users in Operating System - HP-UX

Same password for different users

Ravindar_1 — Mon, 11 Apr 2005 02:59:52 GMT

I have a HP UX 11.0. Are there any way/script to set the same password for different users?.I require this because i plan to do a load testing of changing the password concurrently for approximately 250 users.
Please give me some suggestions.

Re: Same password for different users

Peter Godron — Mon, 11 Apr 2005 03:03:46 GMT

Ravindar,
probably the quickest way is to get a software product called "expect".
With this you can mimik all the user input to passwd.
Regards

Re: Same password for different users

Peter Godron — Mon, 11 Apr 2005 03:07:20 GMT

Ravindar,
forgot to mention software available at:
http://hpux.connect.org.uk/hppd/hpux/Tcl/expect-5.43/
Regards

Re: Same password for different users

Ravindar_1 — Mon, 11 Apr 2005 05:34:10 GMT

Peter,
Thanks a lot for your suggestion.. are there any other way/script without using a software to be loaded?.. coz i need to follow lot of procedures(approvals,...) to get s/w loaded to my machine..Pls advise..

Re: Same password for different users

Pete Randall — Mon, 11 Apr 2005 05:42:43 GMT

Frankly, no, expect is the only reasonable way to accomplish this. The problem is that the passwd command is interactive - it expects a response from the keyboard and the only way to satisfy it is to use something like expect.

Pete

Re: Same password for different users

Bill Hassell — Mon, 11 Apr 2005 08:06:09 GMT

Actually, you can use the undocumented command: /usr/sam/lbin/usermod.sam. This is actually the standard /usr/sbin/usermod command but when it is run under a different name (usermod.sam), it adds the -p option. The -p option requires the fully-encrypted password just as it would appear in /etc/passwd (or the /tcb database). The attached simple program will create an excrypted password that you can paste into the -p option for usermod.sam. Something like this:

cc -o pw pw.c
pw abc123
Usage: pw
Requested pw= abc123, Seed= BJ, encrypted pw= BJkKDVTAGF5fU

/usr/sam/lbin/usermod -p BJkKDVTAGF5fU USER_LOGIN

Now if this is to simply set all the passwords to the same value so the accounts can be exercised at a later time, this is fine.

If however, you are testing what happens when 250 user all type the passwd command at the same time, then usermod.sam is not a good test. The reason is that passwd has a particular code path to validate, encrypt and then update the password file. usermod.sam simply inserts whatever you type
into the password file. I'm not sure why such a load test would be necessary since it will be impossible to coordinate 250 people to type in their new password and hit enter at exactly the same time.

Re: Same password for different users

Peter Godron — Thu, 14 Apr 2005 08:20:42 GMT

Ravindar,
did the answers resolve your problem?
If not can you please update the thread.

Also please read
(0 points for 15 responses)
http://forums1.itrc.hp.com/service/forums/helptips.do?#34

Regards