The issue
I recently ran into the following error when trying to deploy remotely using docker-compose:
ERROR: Secsh channel 14 open FAILED: open failed: Connect failed
The issue is that the default SSH connections allowed is set to 10 and the command I was running was trying to use more connections then that.
Fixing the error
To fix this error you’ll need to connect to your server via SSH and edit the /etc/sshd_config file. Find the MaxSessions line and uncomment it. The default is 10 as mentioned, I set mine to 20 instead:
MaxSessions 20
Then restart the ssh service:
sudo service ssh restart
After that I could run my command successfully, hope this helps you as well!
