One of my droplets can't access one of the others

September 28, 2016 159 views
Networking Ubuntu 16.04

I recently installed 4 new droplets to try out docker swarm/rancher/kubernetes etc.

Three of them works perfectly, but one of them can for some reason not connect to the other ones.

ufw is disabled on all of the droplets, and all I've done on each machine is to add a user password, and install docker..

I'm not sure if this is enough information to go on, but all the help I can get would be greatly appreciated

  • Hi! In order to be able to help you, we'll need a bit more info:

    • Are you trying to access the Droplets using the public or private network? If the latter, are all four Droplets located in the same datacenter?
    • How are you trying to connect to the Droplets? Are you able to at least ping the Droplet from the rest?
  • I'm trying to connect them through the private network in digital ocean, as in droplet #1 pinging droplet #2, and they're all in the same datacenter :)

    I'm trying to connect them through http, and ping doesn't work.

    Or to be clear, pinging between droplet #1, #2 and #3 works as expected but the #4 can't connect to any of the others

    Thanks for your help :)

  • In that case I would first disable any firewalls on your droplet to make sure that they are not preventing the connections (make sure you turn them back on). If you're still unable to reach your droplets over the private network you should open a ticket so our team can help troubleshoot and see if there is a network issue on our end.

  • I've disabled the ufw firewall, and it's still not working so I'll try opening a ticket and hope that helps!

    But thank you so much for your help!

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