Possible IPv6 bug for --keyserver option

gnupg at lists.grepular.com gnupg at lists.grepular.com
Wed Nov 30 17:43:11 CET 2011

On 30/11/11 16:25, David Shaw wrote:

>> mike at Fuzzbutt:~$ gpg --keyserver grepular.com --recv-key 11111111
>> gpg: requesting key 11111111 from hkp server grepular.com
>> gpgkeys: HTTP fetch error 7: Failed to connect to
>> 2001:470:1f09:1186::beef: Network is unreachable
>> gpg: no valid OpenPGP data found.
>> gpg: Total number processed: 0
>> mike at Fuzzbutt:~$
>> Why is gpg trying to connect to the IPv6 address here? The machine I'm
>> running it from doesn't have an IPv6 address, so it should be using the
>> A record instead of the AAAA record...
>> mike at Fuzzbutt:~$ ifconfig|grep inet6
>> mike at Fuzzbutt:~$
>> I'm running GnuPG 2.0.14 on Ubuntu 11.04
>> P.S. There isn't a keyserver at grepular.com, so I wasn't expecting it
>> to work. I just wasn't expecting it to use the AAAA record instead of
>> the A record.
> Hmm.  GnuPG uses libcurl to do the HTTP part of fetching keys, so this might actually be a Curl question.  Curl (at least on Linux) uses getaddrinfo to resolve out the IPv4 vs IPv6 question.  What happens if you do "curl -v http://grepular.com:11371" on the command line?
> See also http://manpages.ubuntu.com/manpages/natty/man5/gai.conf.5.html

Seems curl tries IPv4 then IPv6.

mike at Fuzzbutt:~$ curl -v http://grepular.com:11371
* About to connect() to grepular.com port 11371 (#0)
*   Trying Connection refused
*   Trying 2001:470:1f09:1186::beef... Failed to connect to
2001:470:1f09:1186::beef: Network is unreachable
* Success
* couldn't connect to host
* Closing connection #0
curl: (7) Failed to connect to 2001:470:1f09:1186::beef: Network is

Mike Cardwell https://grepular.com/  https://twitter.com/mickeyc
Professional  http://cardwellit.com/ http://linkedin.com/in/mikecardwell
PGP.mit.edu   0018461F/35BC AF1D 3AA2 1F84 3DC3 B0CF 70A5 F512 0018 461F

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