From: Clint Dilks <clintd at scms.waikato.ac.nz>
> Can anyone else confirm that AllowGroup is no longer an accepted
> configuration option for openssh-server-4.3p2-29.el5. And is this
> intended or should I be submitting a Bug Report ?
Are you using sshd_config or ssh_config?
man sshd_config lists AllowGroups (plural)
JD