[17018] in athena10
Re: Postfix FQDN requested during installation
daemon@ATHENA.MIT.EDU (Benjamin Kaduk)
Sun Dec 1 23:58:45 2019
Date: Sun, 1 Dec 2019 20:58:34 -0800
From: Benjamin Kaduk <kaduk@mit.edu>
To: Anthony Grebe <agrebe@mit.edu>
CC: "Aaron M. Ucko" <amu@alum.mit.edu>, debathena <debathena@mit.edu>
Message-ID: <20191202045834.GJ32847@mit.edu>
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I suppose that we should try starting it manually to see what (if any)
error messages it produces when it tries to start:
sudo service zhm start
<will prompt for sudo password>
This content might also get preserved in /var/log/syslog, though I forget
the precise details of what goes where.
-Ben
On Mon, Dec 02, 2019 at 04:45:51AM -0500, Anthony Grebe wrote:
> Dear Ben,
>
> Yes, this is on my laptop, which is running Ubuntu 14.04. The command
> results are
>
> agrebe@agrebe-laptop:~$ service zhm status
> Usage: /etc/init.d/zhm {start|stop|restart|force-reload}
> agrebe@agrebe-laptop:~$ pgrep zhm
> [returns nothing]
>
> This is the case both before and after I run renew.
>
> Thank you,
>
> Anthony
>
> On 12/1/19 11:42 PM, Benjamin Kaduk wrote:
> > Hi Anthony,
> >
> > Just to double-check, this is on your laptop running Ubuntu 14?
> > If so, perhaps
> >
> > service zhm status
> >
> > would be useful.
> >
> > Also, how about
> >
> > pgrep zhm
> >
> > while we're at it?
> >
> > Thanks,
> >
> > Ben
> >
> > On Sun, Dec 01, 2019 at 10:24:41PM -0500, Anthony Grebe wrote:
> >> Dear Aaron,
> >>
> >> Both variants give me the response
> >>
> >> initctl: Unknown job: zhm
> >>
> >> I've tried this before and after renew and got the same message.
> >>
> >> Thank you,
> >> Anthony
> >>
> >> On 12/1/19 2:17 PM, Aaron M. Ucko wrote:
> >>> Oops, please try
> >>>
> >>> initctl --system status zhm
> >>>
> >>> or (if you still get "command not found)
> >>>
> >>> /sbin/initctl --system status zhm
> >>>
> >>> NB: Most likely, exactly one of those two variants will work.
> >>>
> >>> Anyway, no need to apologize, and thanks for keeping the list copied.
> >>>
> >>> -- Aaron
> >>>
> >>> Anthony Grebe <agrebe@mit.edu> writes:
> >>>
> >>>> Dear Aaron,
> >>>>
> >>>> Thank you for explaining this, and I apologize that it's taken me so
> >>>> long for me to respond.
> >>>>
> >>>> When I run "systemctl status zhm.service," I get the response
> >>>> "systemctl: command not found." It's not super important to fix this,
> >>>> so don't worry about trying to debug if this is a complicated problem,
> >>>> although if this is something straightforward I can try to implement
> >>>> it.
> >>>>
> >>>> Thank you,
> >>>> Anthony
> >>>>
> >>>> On 11/7/19 3:40 PM, Aaron M. Ucko wrote:
> >>>>> Thanks for clarifying!
> >>>>>
> >>>>> The difference between kinit and renew is that kinit is a standard
> >>>>> Kerberos utility that only obtains raw Kerberos credentials, whereas
> >>>>> renew is an Athena-specific alias that additionally authenticates to AFS
> >>>>> (via the Athena-specific fsid -a, though standard aklog will typically
> >>>>> also do) and tries to refresh your Zephyr service tickets.
> >>>>>
> >>>>> Speaking of Zephyr, what does "systemctl status zhm.service" report?
> >>>>>
> >>>>> -- Aaron
> >>>>>
> >>>>> Anthony Valenti Grebe <agrebe@mit.edu> writes:
> >>>>>
> >>>>>> Dear Ben,
> >>>>>>
> >>>>>> Thank you for your detailed response, and Im sorry that it took me so long to respond on my end.
> >>>>>>
> >>>>>> Ive tried answering both yes and no to the debathena-msmtp-mta prompt (on different install attempts), and it seems like Ive run into either prompts or
> >>>>>> installation problems either way. But if this step isnt necessary for accessing AFS, then I guess I will just leave the FQDN as localhost.mit.edu and not
> >>>>>> worry about this part.
> >>>>>>
> >>>>>> Ive tried to install debathena-standard from the installer script (that I got from debathena.mit.edu/install-debathena.sh) on both my laptop (running Ubuntu
> >>>>>> 14) and my Chromebook (running Ubuntu 16 on top of Chrome OS; Im not exactly sure how this works other than that Ubuntu lives inside a chroot). In the past,
> >>>>>> I hadnt been able to access AFS on my laptop, but for some reason it seemed to work today. (I think that Ive tried to run kinit before and still been
> >>>>>> unable to access AFS; today I tried renew instead, so maybe that is the difference?) Given that it now seems to be working on my laptop, I would believe that
> >>>>>> the Chromebook is having problems just because of conflicts between Ubuntu and Chrome OS.
> >>>>>>
> >>>>>> I cant seem to get Zephyr to work on either machine (it just says Hostmaster not responding while initializing Zephyr). This seems less important than AFS
> >>>>>> access, though, given that Zephyr doesnt seem to be in as widespread use as in the past.
> >>>>>>
> >>>>>> The one question I have left: Is there a difference between kinit and renew, and what is the point of each? I would have naively thought that I would use
> >>>>>> kinit to access AFS and only use renew if I had left my computer on for a long time, but empirically it seems like renew gives me access to AFS and kinit does
> >>>>>> nothing discernible.
> >>>>>>
> >>>>>> Thank you,
> >>>>>> Anthony
> >>>>>>
> >>>>>> On Oct 28, 2019, at 12:44 AM, Benjamin Kaduk <kaduk@mit.edu> wrote:
> >>>>>>
> >>>>>> Hi Anthony,
> >>>>>>
> >>>>>> There's a few points to cover here, so let me take them separately:
> >>>>>>
> >>>>>> This FQDN you're being asked for is part of the Postfix configuration, a
> >>>>>> mail transfer agent; it's unlikely to affect your ability to use AFS and/or
> >>>>>> zephyr. (Incidentally, my recollection is that most debathena systems
> >>>>>> ended up with exim, not postfix, but I could be misremembering. I believe
> >>>>>> there's also a question in the installer about debathena-msmtp-mta, for
> >>>>>> which a "yes" answer would probably avoid the postfix question.)
> >>>>>>
> >>>>>> The "correct" FQDN value to use depends on where your machine is located
> >>>>>> and who is providing the network for it. For example, machines in the
> >>>>>> W20-575 athena cluster had hostnames like w20-575-3.mit.edu because IS&T
> >>>>>> assigned them to be that way.
> >>>>>>
> >>>>>> Could you say a bit more about what procedure you're using to run the
> >>>>>> installation? In particular, what "metapackage" (like debathena-login or
> >>>>>> debathena-login-graphical) do you pick, and are you getting the installer
> >>>>>> script itself from https://debathena.mit.edu/install-debathena.sh ?
> >>>>>>
> >>>>>> Thanks,
> >>>>>>
> >>>>>> Ben
> >>>>>>
> >>>>>> On Sat, Oct 26, 2019 at 12:02:24PM -0400, Anthony Valenti Grebe wrote:
> >>>>>>
> >>>>>> I'm trying to install debathena from the installer scripts online, but
> >>>>>> during the installation, I'm asked to specify the fully qualified domain
> >>>>>> name I want to use for Postfix and other programs. (The default option
> >>>>>> appears to be "localhost.") What should I put here?
> >>>>>> I've tried to run the installer several times without success (after
> >>>>>> installation I'm never able to access my files in the AFS system or send
> >>>>>> Zephyrs, even after typing renew or kinit), so presumably I'm doing
> >>>>>> something wrong, which might have been guessing the wrong domain name to
> >>>>>> use here.
> >>>>>> Thank you for any help you can give me here.
> >>>>>> Best,
> >>>>>> Anthony
