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

• Zagorath@aussie.zone ⁨3⁩ ⁨weeks⁩ ago

  I’m happy to keep it public if only for the off chance that if we find a solution it might some day help someone else with the same issue.

  I’m not 100% sure how to find the OS version, but uname -a outputs […]6.12.25+rpt-rpi-v8[…]. /etc/os-release contains “Debian GNU/Linux 12 (bookworm)”. It should be whatever was latest as of a month or two ago when I installed the OS fresh.

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  • iglou@programming.dev ⁨3⁩ ⁨weeks⁩ ago

    I have read the rest of the comments to see what you already tried. I was about yo tell you to use sysctl to disable ipv6 but it looks like that is already done.

    As a matter of fact, it looks like you have no ipv6 address at all. Which makes me think that your DNS config is off.

    Can you show me the content of /etc/resolv.conf ?

    source

    • Zagorath@aussie.zone ⁨3⁩ ⁨weeks⁩ ago

      $ dig registry-1.docker.io
      
      ; <<>> DiG 9.18.33-1~deb12u2-Debian <<>> registry-1.docker.io
      ;; global options: +cmd
      ;; Got answer:
      ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50801
      ;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 1
      
      ;; OPT PSEUDOSECTION:
      ; EDNS: version: 0, flags:; udp: 1232
      ;; QUESTION SECTION:
      ;registry-1.docker.io.          IN      A
      
      ;; ANSWER SECTION:
      registry-1.docker.io.   33      IN      A       54.210.249.78
      registry-1.docker.io.   33      IN      A       44.218.153.24
      registry-1.docker.io.   33      IN      A       107.20.112.188
      registry-1.docker.io.   33      IN      A       34.234.222.10
      registry-1.docker.io.   33      IN      A       34.195.83.243
      registry-1.docker.io.   33      IN      A       52.21.128.203
      registry-1.docker.io.   33      IN      A       52.0.248.137
      registry-1.docker.io.   33      IN      A       52.207.69.161
      
      ;; Query time: 47 msec
      ;; SERVER: 192.168.20.1#53(192.168.20.1) (UDP)
      ;; WHEN: Tue Aug 12 22:27:45 AEST 2025
      ;; MSG SIZE  rcvd: 177
      $ cat /etc/resolv.conf
      # Generated by NetworkManager
      search Home
      nameserver 192.168.20.1
      

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      • iglou@programming.dev ⁨3⁩ ⁨weeks⁩ ago

        Well this is getting weird.

        Have you tried checking if your os has a resolution cashe active? If so, try to flush it.

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