Bug 425994 - wget should conform to RFC3484
wget should conform to RFC3484
Product: Fedora
Classification: Fedora
Component: wget (Show other bugs)
All Linux
low Severity low
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Assigned To: Karsten Hopp
Fedora Extras Quality Assurance
: Reopened
Depends On:
Blocks: IPv6Blocker
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Reported: 2007-12-17 12:06 EST by Dawid Gajownik
Modified: 2009-03-01 10:47 EST (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2009-01-09 02:32:20 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Dawid Gajownik 2007-12-17 12:06:10 EST
Description of problem:
wget prefers IPv4 address over IPv6 one:

[gajownik@cyklop tmp]$ LANG=C wget
           => `Fedora-8-i386-rescuecd.iso.2'
Resolving ftp.heanet.ie..., 2001:770:18:aa40::c101:c140
Connecting to ftp.heanet.ie||:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done.    ==> PWD ... done.

Version-Release number of selected component (if applicable):

Please add

prefer-family = IPv6

to the default /etc/wgetrc file.
Comment 1 Karsten Hopp 2008-02-07 07:14:20 EST
Even though IPv6 is slowly advancing, changing the default will surely break
quite a few scripts where machines have an IPv6 address but the services on that
server haven't been configured for IPv6. I'm preferring to go the route of least
surprises here and keep the upstream default.
Comment 2 David Woodhouse 2008-02-07 07:21:56 EST
Reopening, changing title.
Comment 3 Mark McClelland 2008-04-26 02:14:57 EDT
There's a related upstream bug:

I agree with the original poster of that bug that "prefer-family = none" should
be the default. According to RFC3484: "Well-behaved applications SHOULD iterate
through the list of addresses returned from getaddrinfo() until they find a
working address."
Comment 4 David Woodhouse 2008-04-26 11:01:25 EDT
The comment in that bug seems to indicate that "prefer-family=none" would use
the results in the (random) order they're returned by the DNS server. That also
violates RFC3484.
Comment 5 David Woodhouse 2008-04-26 11:02:57 EDT
Oh, I think I misread it. It does look like it might be the correct thing to do,
since glibc will sort the results for us.
Comment 6 Bug Zapper 2008-11-26 04:02:59 EST
This message is a reminder that Fedora 8 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
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Comment 7 Bug Zapper 2009-01-09 02:32:20 EST
Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

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