Date: Tue, 07 Mar 2006 16:28:25 -0600 From: Guy Helmer <ghelmer@palisadesys.com> To: cole@opteqint.net Cc: freebsd-hackers@freebsd.org Subject: Re: tty's and no login Message-ID: <440E0909.1010305@palisadesys.com> In-Reply-To: <20060307213436.A946843D5F@mx1.FreeBSD.org> References: <20060307213436.A946843D5F@mx1.FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Cole wrote:
> Hey
>
> Im not sure if this is the right list, but anyway, let me know if im wrong.
>
> What im trying to do is, have a custom program run on a specific tty. Say like ttyv4, or so. But I would like to do this without having to login to this ttyv.
> So instead of being presented with a login option, I would like to be able to switch to ttyv4, and have it show me the output of the program that is running and using that terminal for output.
>
> So exactly where about do you go about doing something like this? Is there something already created to do this?
>
>
On a physically-secured machine I have this setup for ttyv1 in /etc/ttys:
ttyv1 "/usr/libexec/getty IPMonitor" cons25 on secure
and then in /etc/gettytab I have this entry for IPMonitor:
IPMonitor:\
:al=ipmonitor:tc=Pc:
Next, I have a special user named "ipmonitor" that is locked out (the
password field is set to *LOCKED* in master.passwd) but has a special
login script, like this:
ipmonitor:*LOCKED*:65499:65499::0:0:IP Monitor Screen:/home/ipmonitor:/home/ipmonitor/bin/monitor.sh
Finally, the special login script for ipmonitor is this simple script:
#!/bin/sh
exec /usr/bin/systat -ip
I've also used vidcontrol with the -s option in a script like this to
grab the screen.
Hope this helps,
Guy
--
Guy Helmer, Ph.D.
Principal System Architect
Palisade Systems, Inc.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?440E0909.1010305>