I have two digital ocean instances each running an elixir app but I can’t get them to connect to each other via longnames and Node.connect. I’m using digitalocean private IPs to connect and the machines definitely can see each other as I can ping them, from each other and they definitely have the c…

Do you have the required ports open (default 4369)? http://erlang.org/doc/man/epmd.html

Below are the netstats of both machines, there are no firewalls enabled. Do I have to open ports explicitly? Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:37034 0.0.0.0:* LISTEN 9622/beam.smp…

You could try starting epmd in the foreground to see what it says when you try to connect them.

Okay I’ll give this a try when i get the chance later and give an update. Thanks for your help so far guys!

When you ask your internal DNS, will the longnames resolve to IPv6 or IPv4 Addresses, or are you using IPs directly in the longnames?

i’m using the digital ocean private ips in the long names

As I’m not using DO, I have to ask whether they are v4 or v6. If the latter, try the former.

:waving_hand: Is private networking enabled for your droplets?

[image] idi527: Is private networking enabled for your droplets? I think we can assume so: [image] r11na: and the machines definitely can see each other as I can ping them, from each other

I’m using v4. Haven’t really been having any success with this, can’t help but feel there is something i’m missing here but there is no feed back as to why its not working epmd -d doesn’t really show anything… I should probably add that the instances are running inside docker containers… maybe tha…

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Two digital ocean nodes running elixir won't connect

Questions & Help Questions

idi527 July 30, 2018, 6:02pm 9

Is private networking enabled for your droplets?