nanog mailing list archives
Re: is your host or dhcp server sending dns dynamic updates for rfc1918?
From: Valdis.Kletnieks () vt edu
Date: Sat, 20 Apr 2002 01:49:43 -0400
On Fri, 19 Apr 2002 22:14:37 PDT, Simon Higgs <simon () higgs com> said:
Not yet. But the common thread to this is that every domain that vanishes (and causes email to bounce) has got a bogus MNAME entry (i.e. MNAME is unroutable). This isn't a root specific problem as legacy root users have reported this problem alongside ORSC users. The bogus MNAME may be a red herring, but it's what we're looking at as a possible common cause.
Hmm... Bork-ware box boots, gets a DHCP address, tries to stick it into the AD tree at the MNAME address, and loses. It then tries to send mail, and the remote end bounces it because it doesn't have a valid PTR entry? Yes, a DHCP'ed mail server is silly, and rejecting mail entirely because of a missing PTR is silly - but this is a world where sites reject mail that has a 'MAIL FROM:<>' and then wonder why things dont work.... Just 2AM speculation, but I've seen stupider failure modes.. ;) -- Valdis Kletnieks Computer Systems Senior Engineer Virginia Tech
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- Re: is your host or dhcp server sending dns dynamic updates for rfc1918?, (continued)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Valdis . Kletnieks (Apr 19)
- RE: is your host or dhcp server sending dns dynamic updates for rfc1918? Bruce Williams (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Valdis . Kletnieks (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Mike Parson (Apr 19)
- RE: is your host or dhcp server sending dns dynamic updates for rfc1918? Ukyo Kuonji (Apr 19)
- RE: is your host or dhcp server sending dns dynamic updates for rfc1918? Eric Germann (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Paul A Vixie (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Paul A Vixie (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Simon Higgs (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Pete Ehlke (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Simon Higgs (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Valdis . Kletnieks (Apr 19)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Simon Higgs (Apr 19)
- connections to SOA mname? bert hubert (Apr 20)
- Re: is your host or dhcp server sending dns dynamic updates for rfc1918? Nathan J. Mehl (Apr 20)