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Groups > linux.debian.user > #201792
| From | Reco <recoverym4n@enotuniq.net> |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: resolv.conf (was i386 version for chrome) |
| Date | 2018-10-28 14:50 +0100 |
| Message-ID | <wNTC2-6se-5@gated-at.bofh.it> (permalink) |
| References | (4 earlier) <wNPf4-40u-19@gated-at.bofh.it> <wNRTz-5oE-1@gated-at.bofh.it> <wNSFX-5U3-9@gated-at.bofh.it> <wNT8Z-6iC-3@gated-at.bofh.it> <wNT8Z-6iC-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi.
On Sun, Oct 28, 2018 at 04:17:17PM +0300, Reco wrote:
> Hi.
>
> On Sun, Oct 28, 2018 at 02:13:30PM +0100, Pierre Frenkiel wrote:
> > On Sun, 28 Oct 2018, Reco wrote:
> >
> > > strace getent hosts bad.solutions
> >
> > thanks for your answer, but the output is rather obscure for a non-guru user,
> > except a lot of "no such file or directory"
> > In particular, I don't see how to explain the difference of behaviour on
> > my 2 computers.
>
> Not pretending to be a guru, but can you post the results somewhere?
I don't repost those two strace outputs, archives will be better without
them.
The result is somewhat unexpected (to me at least):
Judging from multiple:
stat("/etc/resolv.conf", 0x7ffbffffae40) = -1 ENOENT
The host's resolver is configured for conventional DNS resolution.
/etc/resolv.conf is not present, so resolver tries to find DNS at
127.0.0.1 udp:53:
connect(3, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("127.0.0.1")}, 16) = 0
Which it does (zero return code), and sends DNS query there:
sendto(3, "\307N\1\0\0\1\0\0\0\0\0\0\3bad\tsolutions\0\0\34\0\1", 31, MSG_NOSIGNAL, NULL, 0) = 31
And something that's listening udp:53 on your laptop replies:
recvfrom(3, "\307N\201\200\0\1\0\0\0\1\0\0\3bad\tsolutions\0\0\34\0\1\300"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("127.0.0.1")}, [28->16]) = 91
The fact that libc's resolver have a hardcoded fallback to localhost in
the absense of resolv.conf was not known to me until now, but it's
documented at resolv.conf(5):
If this file does not exist, only the name server on the local
machine will be queried
So, answering your original question, you have working name resolution
because you have a caching nameserver on your laptop. My money's on
dnsmasq.
Reco
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i386 version for chrome Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-27 10:30 +0200
Re: i386 version for chrome Andrew Wood <andrewjameswood@ymail.com> - 2018-10-27 10:40 +0200
Re: i386 version for chrome Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-27 12:40 +0200
Re: i386 version for chrome Roberto C. Sánchez <roberto@debian.org> - 2018-10-27 13:10 +0200
Re: i386 version for chrome Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-27 13:30 +0200
Re: i386 version for chrome Curt <curty@free.fr> - 2018-10-27 14:10 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-27 15:10 +0200
Re: i386 version for chrome Curt <curty@free.fr> - 2018-10-27 16:10 +0200
Re: i386 version for chrome Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-27 17:00 +0200
Re: i386 version for chrome Curt <curty@free.fr> - 2018-10-27 18:00 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-27 17:00 +0200
Re: i386 version for chrome Steve McIntyre <steve@einval.com> - 2018-10-27 17:20 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-27 19:20 +0200
Re: i386 version for chrome Steve McIntyre <steve@einval.com> - 2018-10-27 20:30 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-27 23:30 +0200
Re: i386 version for chrome Brian <ad44@cityscape.co.uk> - 2018-10-28 00:50 +0200
Re: i386 version for chrome David <bouncingcats@gmail.com> - 2018-10-28 00:30 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 01:00 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 01:00 +0200
Re: i386 version for chrome David <bouncingcats@gmail.com> - 2018-10-28 23:00 +0100
Re: i386 version for chrome Curt <curty@free.fr> - 2018-10-28 10:10 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 12:00 +0100
Re: i386 version for chrome Curt <curty@free.fr> - 2018-10-29 12:00 +0100
resolv.conf (was i386 version for chrome) Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-28 13:00 +0100
Re: resolv.conf (was i386 version for chrome) Reco <recoverym4n@enotuniq.net> - 2018-10-28 13:50 +0100
Re: resolv.conf (was i386 version for chrome) Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-28 14:20 +0100
Re: resolv.conf (was i386 version for chrome) Reco <recoverym4n@enotuniq.net> - 2018-10-28 14:20 +0100
Re: resolv.conf (was i386 version for chrome) Reco <recoverym4n@enotuniq.net> - 2018-10-28 14:50 +0100
Re: resolv.conf (was i386 version for chrome) Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-28 16:40 +0100
Re: i386 version for chrome Steve McIntyre <steve@einval.com> - 2018-10-28 01:00 +0200
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-28 16:00 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 17:20 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-29 11:30 +0100
Re: i386 version for chrome Reco <recoverym4n@enotuniq.net> - 2018-10-27 20:40 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-27 23:40 +0200
Re: i386 version for chrome Reco <recoverym4n@enotuniq.net> - 2018-10-28 08:00 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 11:10 +0100
Re: i386 version for chrome Reco <recoverym4n@enotuniq.net> - 2018-10-28 11:40 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 12:10 +0100
Re: i386 version for chrome Reco <recoverym4n@enotuniq.net> - 2018-10-28 13:50 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 17:10 +0100
Re: i386 version for chrome Reco <recoverym4n@enotuniq.net> - 2018-10-28 17:30 +0100
Re: i386 version for chrome The Wanderer <wanderer@fastmail.fm> - 2018-10-28 18:00 +0100
Re: i386 version for chrome john doe <johndoe65534@mail.com> - 2018-10-28 18:10 +0100
Re: i386 version for chrome Reco <recoverym4n@enotuniq.net> - 2018-10-28 18:20 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-29 12:20 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-29 13:30 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-29 13:40 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-29 14:00 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-29 15:50 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-29 15:50 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-29 16:10 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-29 21:20 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-29 21:20 +0100
Re: i386 version for chrome John Hasler <jhasler@newsguy.com> - 2018-10-29 21:30 +0100
Re: i386 version for chrome Brian <ad44@cityscape.co.uk> - 2018-10-29 21:40 +0100
Re: i386 version for chrome Brian <ad44@cityscape.co.uk> - 2018-10-29 21:50 +0100
Re: i386 version for chrome Brian <ad44@cityscape.co.uk> - 2018-10-28 20:00 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 20:10 +0100
Re: i386 version for chrome Brian <ad44@cityscape.co.uk> - 2018-10-28 20:30 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-29 00:40 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-29 12:20 +0100
Re: i386 version for chrome Thomas D Dial <tdial@acm.org> - 2018-10-28 04:10 +0100
Re: i386 version for chrome Michael Stone <mstone@debian.org> - 2018-10-28 15:50 +0100
Re: i386 version for chrome Matthew Crews <mailinglists@mattcrews.com> - 2018-10-27 17:10 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-27 17:40 +0200
Re: i386 version for chrome Matthew Crews <mailinglists@mattcrews.com> - 2018-10-27 22:00 +0200
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-10-28 00:10 +0200
Re: i386 version for chrome David Wright <deblis@lionunicorn.co.uk> - 2018-11-03 04:10 +0100
Re: i386 version for chrome Gene Heskett <gheskett@shentel.net> - 2018-11-03 04:40 +0100
Re: i386 version for chrome tony <lists@vanderhoff.org> - 2018-10-27 15:10 +0200
Re: i386 version for chrome Matthew Crews <mailinglists@mattcrews.com> - 2018-10-27 13:50 +0200
Re: i386 version for chrome Pierre Frenkiel <pierre.frenkiel@gmail.com> - 2018-10-27 14:50 +0200
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