Le 23/06/2026 à 20:20, Ineiev a écrit :
On Tue, Jun 23, 2026 at 04:55:46PM +0200, Thérèse Godefroy via Discussions
among Savannah Hackers, open subscription wrote:
Do you have any idea why Mirmon reports these connections as "hangs"?
Thanks in advance for looking into this issue.
rsync at download0 does download the file, but it takes
over 2 minutes; I wonder if it may be related to mixing addresses
194.8.197.22 and 2001:4dd0:1234:1::deb in the diagnostics:
- - - -
time /usr/bin/rsync -vvvvv --no-motd --timeout 30
mirror.netcologne.de::savannah/00_TIME.txt netcologne_00_TIME.txt
FILE_STRUCT_LEN=24, EXTRA_LEN=4
opening tcp connection to mirror.netcologne.de port 873
Connected to mirror.netcologne.de (194.8.197.22)
rsync: failed to connect to mirror.netcologne.de (2001:4dd0:1234:1::deb):
Connection timed out (110)
[...]
real 2m8.350s
user 0m0.001s
sys 0m0.007s
- - - -
I got a similar result from fencepost, which runs Trisquel 10.0.1
(AFAIK, download0 runs an older version):
----
user@fencepost:~$ time rsync -vvvvv --no-motd --timeout 30
mirror.netcologne.de::savannah/00_TIME.txt netcologne_00_TIME.txt
opening tcp connection to mirror.netcologne.de port 873
Connected to mirror.netcologne.de (194.8.197.22)
rsync: failed to connect to mirror.netcologne.de
(2001:4dd0:1234:1::deb): Connection timed out (110)
[...]
real 2m13.145s
user 0m0.001s
sys 0m0.013s
----
Even tho the version of rsync on fencepost is ancient, it is
IPv6-capable:
----
user@fencepost:~$ rsync --version
rsync version 3.1.3 protocol version 31
Copyright (C) 1996-2018 by Andrew Tridgell, Wayne Davison, and others.
Web site: http://rsync.samba.org/
Capabilities:
64-bit files, 64-bit inums, 64-bit timestamps, 64-bit long ints,
socketpairs, hardlinks, symlinks, IPv6, batchfiles, inplace,
append, ACLs, xattrs, iconv, symtimes, prealloc
[...]
----
Indeed, it can connect to another German mirror by IPv6:
user@fencepost:~$ time rsync -vvvvv -6 --no-motd --timeout 30
ftp.fau.de::gnu/mirror-updated-timestamp.txt
fau_mirror-updated-timestamp.txt
opening tcp connection to ftp.fau.de port 873
Connected to ftp.fau.de (2001:638:a000:1021:21::1)
[...]
real 0m1.862s
user 0m0.002s
sys 0m0.009s
Why does the IPv6 connection to netcologne fail?
