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barfo
Apprentice
Joined: 04 Mar 2006
Posts: 163
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 Posted: Sun Jan 24, 2010 9:24 pm Post subject: wget name resolution fails, ping and other connections work. |
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hi all. so i was emerging world and after getting the latest udev i see an error about the x264 package:
| Code: | >>> Emerging (1 of 1) media-libs/x264-0.0.20091021
>>> Downloading 'http://distfiles.gentoo.org/distfiles/x264-snapshot-20091021-2245.tar.bz2'
--2010-01-24 15:00:29-- http://distfiles.gentoo.org/distfiles/x264-snapshot-20091021-2245.tar.bz2
Resolving distfiles.gentoo.org... failed: Temporary failure in name resolution.
wget: unable to resolve host address `distfiles.gentoo.org' |
so i scratched my head a bit and wondered... then tried:
| Code: | [ root@mrblack 3:18PM ]~$ ping distfiles.gentoo.org
PING distfiles.gentoo.org (149.20.20.135) 56(84) bytes of data.
64 bytes from mirrors1.kernel.org (149.20.20.135): icmp_seq=1 ttl=57 time=63.9 ms
64 bytes from mirrors1.kernel.org (149.20.20.135): icmp_seq=2 ttl=57 time=63.4 ms
^C
--- distfiles.gentoo.org ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 62.930/63.451/63.927/0.353 ms
[ root@mrblack 3:20PM ]~$ |
now i try running wget again...
| Code: | [ root@mrblack 3:20PM ]~$ wget http://distfiles.gentoo.org/distfiles/x264-snapshot-20091021-2245.tar.bz2
--2010-01-24 15:21:39-- http://distfiles.gentoo.org/distfiles/x264-snapshot-20091021-2245.tar.bz2
Resolving distfiles.gentoo.org... failed: Temporary failure in name resolution.
wget: unable to resolve host address `distfiles.gentoo.org'
[ root@mrblack 3:21PM ]~$ |
relevant info:
| Code: | [ root@mrblack 3:21PM ]~$ cat /etc/resolv.conf
# Generated by dhcpcd from eth0
# /etc/resolv.conf.head can replace this line
search pwhitt
nameserver 10.0.0.1
# /etc/resolv.conf.tail can replace this line
[ root@mrblack 3:22PM ]~$ |
where 10.0.0.1 is my router. i re-ran /etc/init.d/net.eth0 and all is the same after seeing no errors.
obviously firefox and all are working. i tried setting the nameserver in my resolv.conf from 10.0.0.1 directly to my ISP's nameserver addy and that didn't work - it actually broke ping, firefox et al.
so what does this mean???
thanks for any info!
--- edit ---
so after posting this i tried manually adding the IP addys for distfiles.gentoo.org and mirrors.gentoo.org to /etc/hosts and now wget works. but if i remove those lines... back to broken.
i should also point out that according to another similar problem i found elsewhere online i tried an `env-update` and `source etc/profile` with no changes observed. i've restarted net.th0 several times now too... |
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truc
Advocate
Joined: 25 Jul 2005
Posts: 3199
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| Posted: Mon Jan 25, 2010 8:09 am Post subject: |
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Just out of curiosity, could you use tcpdump, and see if there are dns queries when using wget?
_________________
The End of the Internet!
Last edited by truc on Mon Jan 25, 2010 2:35 pm; edited 1 time in total |
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barfo
Apprentice
Joined: 04 Mar 2006
Posts: 163
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| Posted: Mon Jan 25, 2010 12:39 pm Post subject: |
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well - it seems that for whatever reason i now have to use `wget -4` in order to force the use of ipv4.
i'm not sure when that borked or how it's related to my update yesterday... but it would have been nice to see a message somewhere near the end of portage's error when the emerge ended.
i still haven't taken the entry out of my hosts file, but wget now works if i use -4. i'll check it later. |
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d2_racing
Bodhisattva
Joined: 25 Apr 2005
Posts: 13047
Location: Ste-Foy,Canada
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| Posted: Mon Jan 25, 2010 2:08 pm Post subject: |
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| Do you use iptables on your box ? |
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barfo
Apprentice
Joined: 04 Mar 2006
Posts: 163
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| Posted: Mon Jan 25, 2010 2:59 pm Post subject: |
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nope - no iptables.
it seems that at some point while updating, the default for wget went from ipv4 to ipv6.
i haven't tried it yet, but i suspect that by adding an entry to define FETCHCOMMAND as wget with the -4 argument, it'll work.
I'll check it out this evening and will post the results... |
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guldan
Tux's lil' helper
Joined: 24 May 2004
Posts: 81
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Networking & Security
