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Re: SSHd

On 8/20/06, Kostas Georgiou <k georgiou imperial ac uk> wrote:
On Sun, Aug 20, 2006 at 12:54:30PM +0200, Christian Rose wrote:

> On 8/19/06, Arthur Pemberton <pemboa gmail com> wrote:
> >Why does FC ship openssh with sshd allowing root logins? And are there
> >any plans to preempt the now routine sshd weak password hunting bots?
> IIRC, the idea was that you should not end up with being locked out of
> a remote system if that system's /home NFS mount was somehow screwed
> up. With allowing root to log in, you could still fix a remote system
> using NFS-mounted home directories.

Not to mention that kerberos/ldap/nis/whatever might be down so user
logins might not be available.

In any case wouldn't it better to start using pam_access by default in
system_auth and block root logins if you want there? I don't see why sshd
should be treated differently than other tools in the system.
Anaconda, authconfig can ask questions at install time like:
 Allow root logins: [X] Local, [] Everywhere, [] By domain ..., etc.
 Allow user logins: [] Local, [X] Everywhere, [] By domain ..., etc.
and setup an access.conf file.

The best bet would be to create a system-config-sshd that could be run
during first boot if so needed. In most cases it is better to run
stuff in first-boot than in anaconda (where most people just seem to
hit enter.)

Stephen J Smoogen. -- CSIRT/Linux System Administrator
How far that little candle throws his beams! So shines a good deed
in a naughty world. = Shakespeare. "The Merchant of Venice"

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