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Date:      Sun, 06 Jun 2021 00:15:37 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 256432] www/youtube_dl: distfile fetch fails over IPv6-only network
Message-ID:  <bug-256432-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D256432

            Bug ID: 256432
           Summary: www/youtube_dl: distfile fetch fails over IPv6-only
                    network
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: multimedia@FreeBSD.org
          Reporter: evgeniy@khramtsov.org
          Assignee: multimedia@FreeBSD.org
             Flags: maintainer-feedback?(multimedia@FreeBSD.org)

MASTER_SITES points to yt-dl.org which has both A and AAAA RRs:

$ host yt-dl.org
yt-dl.org has address 95.143.172.170
yt-dl.org has IPv6 address 2001:1a50:11:0:5f:8f:acaa:177

Dual-stack nodes would fallback to 95.143.172.170 if AAAA failed,
but IPv6-only nodes (with DNS64 or not) can only try AAAA, which=20
is unreachable from at least AS8359 and AS207996:

(AS8359) $ traceroute6 2001:1a50:11:0:5f:8f:acaa:177
traceroute6 to 2001:1a50:11:0:5f:8f:acaa:177 (2001:1a50:11:0:5f:8f:acaa:177)
from 2001:db8::1, 64 hops max, 28 byte packets
 1  2001:1a50:11:60::1  2109.865 ms !A  2999.323 ms !A  3199.868 ms !A

(AS207996) $ traceroute6 2001:1a50:11:0:5f:8f:acaa:177
traceroute6 to 2001:1a50:11:0:5f:8f:acaa:177 (2001:1a50:11:0:5f:8f:acaa:177)
from 2001:db8::2, 64 hops max, 28 byte packets
 1  2a0a-e5c0-2-12--5.loves.ipv6.at.ungleich.ch  0.553 ms  0.613 ms  0.643 =
ms
 2  2a01:330:1000:1003::1  8.677 ms  8.489 ms  8.561 ms
 3  2a01:330:0:102::2  8.884 ms  8.677 ms *
 4  10gigabitethernet1-4.core1.zrh1.he.net  9.361 ms  9.272 ms  9.185 ms
 5  100ge8-1.core1.zrh2.he.net  5.551 ms  5.945 ms  5.870 ms
 6  100ge15-1.core1.fra1.he.net  11.129 ms  10.995 ms  10.997 ms
 7  decix-100g.e3.mk.de  11.820 ms  12.161 ms  12.027 ms
 8  ae1.lr1.mk.de  12.694 ms
    ae1.lr2.mk.de  12.122 ms
    ae1.lr1.mk.de  12.580 ms
 9  ae3.cr2b.mk.de  12.784 ms  11.690 ms  11.827 ms
10  2001:1640::4b:2  11.703 ms  11.686 ms  11.811 ms
11  2001:1a50:ffff:fffe::1042  13.008 ms  12.563 ms  12.413 ms
12  2001:1a50:11:60::1  12.009 ms  12.065 ms  11.998 ms
13  2001:1a50:11:60::1  3082.651 ms !A  2659.112 ms !A  3071.638 ms !A


Upstream was notified via e-mail to hostmaster from SOA of zone in April,
no response and no issue resolution since then.

I think switching to USE_GITHUB (DNS64) or mirroring distfile on FreeBSD
cluster
would fix this, until the issue is fixed by yt-dl.org hostmaster.

--=20
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