[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: libc6_2.0.7u-4.deb safe on hamm?

In article <cistron.199810291847.NAA20522@mixing.qc.dfo.ca>,
Peter S Galbraith  <GalbraithP@dfo-mpo.gc.ca> wrote:
>I'm getting errors with MH mail.  Mail is sent, but bounces back with
>DNS errors likes:
>Oct 29 11:14:43 mixing sendmail[1752]: LAA01744:
>to=<GalbraithP@dfo-mpo.gc.ca>, ctladdr=<rhogee@mixing.qc.dfo.ca>
>(1000/1000), delay=00:00:04, xdelay=00:00:00, mailer=esmtp,
>relay=msg6.dfo-mpo.gc.ca., stat=Host unknown (Name server:
>msg6.dfo-mpo.gc.ca.: host not found)
>Oct 29 11:14:43 mixing sendmail[1752]: LAA01744: LAA01752: DSN: Host
>unknown (Name server: msg6.dfo-mpo.gc.ca.: host not found)

It's not an MH problem, but some strange sendmail/libc6_2.0.7u
interaction that causes this. A bug report has been filed against
libc6, but nobody has done anything about it :(

>At the same time, I could resolve names with `host':
># host msg6.dfo-mpo.gc.ca
>msg6.dfo-mpo.gc.ca      A

Don't forget, sendmail doesn't look up the IP address but looks up
the MX record FIRST. So always see if you can do a

host -t mx msg6.dfo-mpo.gc.ca

If that returns an MX record, then lookup the IP address of the MX host.

$ host -t mx msg6.dfo-mpo.gc.ca
msg6.dfo-mpo.gc.ca has no MX record (Authoritative answer)

Okay, it has no MX record. In that case sendmail uses the IP address
directly, and that fails .. the question is, where is the bug?

  "Did I ever tell you about the illusion of free will?"
    -- Sheriff Lucas Buck, ultimate BOFH.

Reply to: