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su: No shell/No directory! if sys is added to a users secondary group

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Operating Systems Solaris su: No shell/No directory! if sys is added to a users secondary group
# 1  
Old 08-09-2010
su: No shell/No directory! if sys is added to a users secondary group

When I include a user to the secondary group "sys" GID=3 in Solaris 9 OS I'm not able to login. I get these error. The user home directory and the shell exists. Is this because of any security hardening.

# su - agent
No directory!
# su agent
su: No shell

# grep taddm /etc/passwd

# ls -ld /home/agent
drwxr-xr-x   2 agent    agent        512 Aug  9 10:10 /home/agent

# ls -l /bin/ksh
-r-xr-xr-x   3 root     bin       201076 Aug  9  2005 /bin/ksh

Last edited by pludi; 08-09-2010 at 07:49 AM.. Reason: code tags, please...
# 2  
Old 08-09-2010
Do you use the automounter at all ?
I setup the same as you had above on a generic Sol 9 box and it worked fine.
Could you also supply an "cat /etc/shells" , "grep agent /etc/group" and "cat /etc/nsswitch.conf".
# 3  
Old 08-09-2010
# cat /etc/shells

# grep agent /etc/group

#cat /etc/nsswitch.conf
passwd:     files
group:      files

I can login normally, I have this problem only when I add the user to the secondary group sys. Any idea?

Last edited by Scott; 08-09-2010 at 12:01 PM.. Reason: Please use code tags
# 4  
Old 08-09-2010
And do you use the automounter ?
# 5  
Old 08-09-2010
Hi, How could I find it? I have these configuration.

# tail /etc/auto_master
# Master map for automounter
/net            -hosts          -nosuid,nobrowse
/home           auto_home       -nobrowse
/xfn            -xfn

# more /etc/auto_home
# Home directory map for automounter

Last edited by Scott; 08-09-2010 at 12:01 PM.. Reason: Code tags, please...
# 6  
Old 08-09-2010
/home auto_home -nobrowse

I believe this line indicates that it is.
I have had issues like this is the past from the automounter, and unless you *need* this functionality, I normally disable it by removing this line from /etc/auto_master and re-start the automounter.
This is not really a fix, but a workaround.
Another tack would be to checkout the Solaris Patches as it may well be a known issue.
# 7  
Old 08-09-2010
Hi, I'm afraid I cant disable it. Can this user home directory be moved to /export/home/agent instead of /home/agent. Will this fix the problem?

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