[Elixir][Erlang]connect to remote node

Connecting to remote production node is very useful to debug or observe production.

• target node

$ elixir --name [your application name]@[your host] --cookie 123 --erl "-kernel inet_dist_listen_min 9001 inet_dist_listen_m 9001" -S mix phoenix.server

• local node

$ iex --name debug@127.0.0.1 --cookie 123 --remsh [your application name]@[your host]

Sometimes, you should set port forwarding up to connect to target node via a particular node.

References

• http://blog.plataformatec.com.br/2016/05/tracing-and-observing-your-remote-node/
• https://mfeckie.github.io/Remote-Profiling-Elixir-Over-SSH/