Comment on How do I stop Docker trying to pull from IPv6?

• tychosmoose@piefed.social ⁨3⁩ ⁨days⁩ ago

  Ok, so it's probably using NetworkManager. I would try disabling it in /etc/NetworkManager/NetworkManager.conf by adding a block like:

  [ipv6]
  addr-gen-mode=stable-privacy
  method=disabled
  

  Then sudo systemctl restart NetworkManager.
  Can't say for sure if this will work. I dislike using NetworkManager on my servers so I can't test if this works. But hopefully the before/after of ip addr is different.

  Although it looks like your ip addr output posted an hour or so ago doesn't show any ipv6 addressing. Maybe the problem is solved now.

  source

  • Zagorath@aussie.zone ⁨3⁩ ⁨days⁩ ago

    Unfortunately not.

     docker run hello-world
    Unable to find image 'hello-world:latest' locally
    docker: Error response from daemon: Get "https://registry-1.docker.io/v2/library/hello-world/manifests/sha256:ec153840d1e635ac434fab5e377081f17e0e15afab27beb3f726c3265039cfff": dial tcp [2600:1f18:2148:bc00:eff:d3ae:b836:fa07]:443: connect: network is unreachable
    
    Run 'docker run --help' for more information
    

    source

    • tychosmoose@piefed.social ⁨3⁩ ⁨days⁩ ago

      Well crap. Do you have no ipv6 address now in ip addr?

      Guess I gave Docker too much benefit of the doubt and assumed it should failover to v4 once v6 was disabled. Bad assumption on my part.

      Could it be a DNS problem? If you dig registry-1.docker.io +short does it return an ipv4 or v6 address?

      It looks like there have been sporadic reports of problems from people since last year.

      source

      • MysteriousSophon21@lemmy.world ⁨2⁩ ⁨days⁩ ago

        Try adding {“ipv6”: false} to your /etc/docker/daemon.json file (create it if it doesnt exist), then restart docker with sudo systemctl restart docker - this forces docker to use IPv4 only.

        source

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      • Zagorath@aussie.zone ⁨3⁩ ⁨days⁩ ago

        Do you have no ipv6 address now in ip addr

        Just comparing it by eye, there’s no change.

        zag@raspberrypi:~ $ man dig
        No manual entry for dig
        zag@raspberrypi:~ $ which dig
        zag@raspberrypi:~ $ sudo apt install dig
        Reading package lists... Done
        Building dependency tree... Done
        Reading state information... Done
        E: Unable to locate package dig
        

        But if I ping it

        $ ping registry-1.docker.io
        PING registry-1.docker.io (107.20.112.188) 56(84) bytes of data.
        

        source

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