Another problem I ran into with only obscure search results:
alucard@fileserver:~$ ssh aix04 alucard@aix04's password: Last unsuccessful login: Fri May 15 15:28:28 EDT 2009 on ssh from fileserver Last login: Tue Jun 16 10:31:45 EDT 2009 on /dev/pts/0 from fileserver Could not chdir to home directory /home/alucard: Permission denied /bin/ksh: Permission denied Connection to aix04 closed.
The solution in my case was:
chmod a+rx /
/ had permissions 0644 when they need to be 0755 to allow anyone but root to log in.
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