AIX

I have four AIX 6.1.7.4 systems freshly built and ready for our DBAs to do their work. Of the three one runs into an odd issue while logging in as himself, using Putty with ssh protocols. He logs in successfully, but also gets the following error message:

[compat]: 3004-300 You entered an invalid login name or password.

But instead of dumping him, it lets him right in and proceeds as normal. There's nothing in his .profile that has him trying to be someone else and his entry in /ets/security/user is identical to systems in production. If I su from root to his ID, I don't see the message.

What am I missing here?

Might it be that the username is simply too long? I encountered this issue only on AIX 5.3 but maybe this is still the case. Check it this way:

Code:

lsattr -El sys0 -a max_logname

If this is the culprit change it the usual way:

Code:

chdev -l sys0 -a max_logname=<number>

You will then need to reboot for these change to take effect.

I hope this helps.

bakunin

Bakunin,

Thanks for the advice. Unfortunately, the usernames are set to a standardized format, so length is not an issue. Also, we don't see this issue on our 6.1.5 servers, just the servers at 6100-07-04-1216.

My colleagues think it's an issue with a PAM module working with ssh. We thought we had a fix but it may not have taken (don't have details on the fix at this time). It's not breaking anything but seeing a false message like that is... well...

Mike