Installing and configuring ssh. Putty throws a connection refused error. What to do?

Question

linux

There is a droplet on digitalOcean. There is a site on node.js. Everything is working. The server was set up by a person with whom there are no contacts.
At one point, ssh through putty stopped working. Access to the console remained through the digitalocean cabinet.
I installed ssh, openssh-server, openssh-client and configured sshd config according to the manual. Then there was a restart of ssh. It doesn't give any errors. Writes that everything is OK, the launch has been completed.
ps auxw | grep ssh gives

ssh swears connection refused error.
Googling and searching for the problem did not bear fruit. Maybe I don't even know how to google correctly :)
Also, my knowledge of linux administration is much to be desired.
Which way to go to correct the error? Where to begin? Maybe this is a common mistake?

Answer 1

It appears from your screenshot that sshd is not running.

Answer 2

It's easier to use pgrep sshd - if there is a PID number, then it's running.
Look in /var/log/auth.log.
Check in sshd.conf:
-what protocol is sshd listening on: v1 or v2. Accordingly, in putti, too.
- whether login by password is allowed, and not only by key (of course, it is more correct to use the key, but at this stage it is necessary to check).

Answer 3

Your sshd is not running.
Do:

# service ssh status
# service ssh start

And don't go for SSH checks from under putty/Windows (it's shit or something).
When debugged - you can walk from under what you want.