Update: The problem described in this question is no longer relevant as the limitation that caused this problem has been lifted. Feel free to create a new question may you encounter similiar issues but as far as I know, the problem I faced was caused by a limitation that has been lifted.
In the Google Cloud Shell I try to connect through the proxy connection string with RethinkDB I am running on Compose to test my application before deploying however it seems that the port (or something else?) has been blocked. I tried to tellnet as a compose support engineer suggested however he had not much expierence with GCS either.
So I tried this:
telnet <url-of-rethinkdb> 15407
However it states the following:
Trying <ip-of-rethinkdb>...
telnet: Unable to connect to remote host: Connection timed out
So my question is, supposing it is the firewall causing this, where can I update the firewall rules for the Google Cloud Shell? (If possible at all)
Also if their might be a different reason for this to happen, suggestions are welcome.
The limitations mentioned above are no longer imposed. The documentation does not mention them and I tested personally by connecting to a random TCP port with success.