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Cake day: August 19th, 2023

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  • In other news, mathematicians have been working hard on calculator detector software. Upon request for comment, leading mathematicians suggested a variety of ideas, such as such as secretly embedding a watermark “58008” (BOOBS) into the decimal parts of pi and e to more easily identify derived calculations. There was consistent sentiment among leading minds that “back in my day we had to work hard to do math, and walk up hill both ways in the snow to school”… and that “there’s nothing wrong with a good ol’ fashion abbicus, dag nabbit!”





  • qx128@lemmy.worldtoSelfhosted@lemmy.worldDocker network internet access
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    4 months ago

    It sounds like your issue might be related to how your Docker networks are configured for DNS and internet access. Try these:

    1. Check Network Configuration: Ensure your new networks are correctly configured to allow internet access. Docker networks should be able to route traffic to the internet by default unless specified otherwise.

    2. DNS Configuration: Since you’re using Pi-hole for DNS, make sure the new networks are properly configured to use Pi-hole as their DNS server.

    3. Inspect Network Settings: Compare the settings of old_main with the new networks. Use the following command to inspect the network configuration:

      docker network inspect old_main
      docker network inspect cloudflared
      

      Pay attention to the gateway, subnet, and any custom DNS settings.

    4. Check Docker Daemon Configuration: Verify that your daemon.json file is correctly set up to use Pi-hole for DNS. It should look something like this:

      {
        "dns": ["<Pi-hole IP>"]
      }
      
    5. Verify Container Configuration: Ensure that your containers are correctly configured to use the new network. This can be specified in your docker-compose files like this:

      version: '3.7'
      services:
        cloudflared:
          image: cloudflare/cloudflared
          networks:
            - cloudflared
      
      networks:
        cloudflared:
          external: true
      
    6. Check Firewall Rules: Ensure there are no firewall rules on your host or network equipment that might be blocking traffic from the new networks.

    7. Test Connectivity: Run a simple connectivity test from within a container on the new network to check internet access:

      docker run --rm -it --network cloudflared alpine ping -c 4 google.com
      

      If this fails, the issue is likely with network configuration rather than the containers themselves.

    8. Docker Network Restart: Sometimes, Docker networks need to be restarted to apply changes correctly. Try removing and recreating the problematic networks:

      docker network rm cloudflared
      docker network create cloudflared
      

    If none of the above steps resolve the issue, there might be a deeper configuration problem. At this point, it might be helpful to see the exact configuration of your docker-compose files and the output of the network inspection commands.