[ale] Scriptable motd for initial SSH login?

[Michael H. Warfield]

On Wed, 2011-09-14 at 16:22 -0400, David Tomaschik wrote: 
> On Wed, Sep 14, 2011 at 3:37 PM, James Sumners <james.sumners at gmail.com> wrote:
> > Well, I had thought of that, but then I read [1] and it says:
> >
> > "SSHRC
> >
> >     If the file ~/.ssh/rc exists, sh(1) runs it after reading the environment
> >     files but before starting the user's shell or command.  It must not pro-
> >     duce any output on stdout; stderr must be used instead."
> >
> > This is explicitly counter to what I want to do so I didn't even
> > bother trying it. But, since you guys have suggested it, I just tried
> > adding the following to ~/.ssh/rc and logging in:
> >
> > #!/bin/bash
> > echo -n "Does this work?\n"

> Make sure you're outputting to stderr, not stdout.  The man page
> wasn't kidding about that.  If you output to stdout, then programs
> that use SSH as a transport will be broken because they'll see the
> output of your script in their data stream.  (This includes rsync,
> scp, etc.)

Right.

But that's the case even if you had another motd.

> > Guess what? It worked. So, thank you for making me re-examine this option.
> >
> > [1] -- http://www.manpagez.com/man/8/sshd/
> >
> 
> 
> 
> -- 
> David Tomaschik, RHCE, LPIC-1
> System Administrator/Open Source Advocate
> OpenPGP: 0x5DEA789B
> http://systemoverlord.com
> david at systemoverlord.com

Regards,
Mike
-- 
Michael H. Warfield (AI4NB) | (770) 985-6132 |  mhw at WittsEnd.com
   /\/\|=mhw=|\/\/          | (678) 463-0932 |  http://www.wittsend.com/mhw/
   NIC whois: MHW9          | An optimist believes we live in the best of all
 PGP Key: 0x674627FF        | possible worlds.  A pessimist is sure of it!
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