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

[Keith Winstein]

Hello Jonathon,

I deployed a new build of mosh-server for amd64 architectures (compiled on
test.dialup) in the mosh_project locker. It seems to be updating utmp now.
Please let me know if you see any trouble.

-Keith

On Fri, Feb 24, 2017 at 1:17 PM, Jonathon Weiss <jweiss at mit.edu> wrote:

> 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:
> >
> > ----------------------------------------------------
>
>
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