[mosh-devel] mosh and utmp on athena.dialup.mit.edu

[Jonathon Weiss]

Hi Keith,

libutempter-dev is now installed on test.dialup.mit.edu.  It should hit
the production dialups over the course of next week, but doing your
build on test.dialup.mit.edu should be fine.  thanks for the help.

	Jonathon



Keith Winstein <keithw at cs.stanford.edu> wrote:

> Hello Jonathon,
> 
> I investigated and it's probably my fault -- I'm compiling and statically
> linking on an Ubuntu system that expects it
> in /usr/lib/x86_64-linux-gnu/utempter/utempter, and athena.dialup has it
> in /usr/lib/utempter/utempter.
> 
> Could you please install libutempter-dev on the dialups? Then I can compile
> on Athena, and my guess is it will start working again. (Or I can spin up a
> VM that more closely matches the dialups if necessary.)
> 
> (Anton, this is a bit of a special case as I am the one who is building and
> installing Mosh at MIT -- we use this to test release candidates.)
> 
> Regards,
> Keith
> 
> On Thu, Feb 23, 2017 at 2:50 PM, Jonathon Weiss <jweiss at mit.edu> wrote:
> 
> >
> > Hello all,
> >
> > Following up on a zephyr conversation I had with Keith and others
> > about a week ago, I was wondering why mosh logins don't appear in the
> > output of "who" or "w" on the athena.dialup.mit.edu servers.  We got
> > as far as confirming that utempter was setgid utmp:
> >
> > -rwxr-sr-x 1 root utmp 10104 Oct  5  2012 /usr/lib/utempter/utempter
> >
> > oh, these files also appear to me ot have reasonable permissions:
> >
> > -rw-rw-r-- 1 root utmp 190080 Feb 23 17:47 /var/run/utmp
> >
> > -rw-rw-r-- 1 root utmp 2704128 Feb 23 17:45 /var/log/wtmp
> >
> > -rw-rw---- 1 root utmp 992640 Feb 23 17:25 /var/log/btmp
> >
> > Anything you can suggest to check?  Anyhting I can do to help debug?
> >
> >         Jonathon
> >
> >         Jonathon Weiss <jweiss at mit.edu>
> >         MIT/IS&T/Infrastructure Design & Engineering
> >         Cloud Platforms (Server Operations)
> > _______________________________________________
> > mosh-devel mailing list
> > mosh-devel at mit.edu
> > http://mailman.mit.edu/mailman/listinfo/mosh-devel
> >
> 
> ----------------------------------------------------
> Alternatives:
> 
> ----------------------------------------------------