@usenet: "(Disclaimer: I am new to AIX, but I am fairly familiar with BSD)
I have a new AIX 5.3 box which I added to our NIS pool.  In it, we have
a bunch of users with NFS home directories.  All of the users sit on
the same NFS partition and can log in to other machines in the NIS
pool.
The problem I am experiancing is one user (lets call him 'testuser1')
cannot log into the AIX box.  Everyone else can.  
Jan 25 11:33:52 localhost auth|security:info sshd[458778]: Accepted
 password for gooduser from host1 port 7029 ssh2
Jan 25 11:33:52 localhost auth|security:info sshd[458778]: Writing
 login record failed for gooduser
Jan 25 11:35:44 localhost auth|security:info sshd[458790]:
 Password can't be changed for user testuser1: [NIS]: reason yp_match
 failed on testuser is 5 
#          ^^^^^^^^
#          Note that the last char is dropped.
Jan 25 11:35:44 localhost auth|security:info sshd[458790]: Failed
 password for testuser1 from host1 port 13204 ssh2 
Jan 25 11:35:44 localhost auth|security:info syslog: ssh: failed login
 attempt for testuser from host1
It appears that users with 9 char logins fail, but users with 8 or 10
succeed.  A google search did not indicate any solutions to this
problem.  Are there any?
If everything is coming your way then you're in the wrong lane."
    @usenet: "On 25 Jan 2006 14:23:33 -0800
: Sorry that i can not help directly but:
: Check where the problem is:
: 
: 1) Verify that the AIX box is set to allow usernames larger then 8
: characters ( long usernames )
Yes.  Users with 10 char login names ('testuser01', also
'reallylongusername') work.
: 2) Verify that you can su from root to these accounts ( bypassing ssh
: but testing NIS )
: Example:
: Login to the AIX box and do an:
: $ su - user0008
: $ su - user00009
: $ su - user000010
With 9 char usernames, that does not work.  With 8 and 10 char
usernames, it does work.
: 3) Create on the AIX box local accounts from 8 to 10 characters and
: test these as well with
: su ( bypassing NIS and SSH )
: ssh ( bypassing NIS and testing SSH )
8 char can be created, 9 and larger cannot.
: This way you might be able to see if the problem is because of
: a) AIX is not set to support long username ( Search also for notes
: about it)
Tested, not true.
: b) ssh does not support long usernames correctly
Tested, not true.
: c) NIS does not support long usernames correctly
Tested, not true.
: d) a different problem
: 
: 
: hth
: Hajo
: 
I fell asleep reading a dull book, and I dreamt that I was reading on,
so I woke up from sheer boredom."
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