Not able to remotely access MySQL on GCP VM

Question

I am having problem to connect to MariaDB on Linuc GCP VM. I have followed all practices to expose the VM on 3306, I use ephemeral IP. The VM is reachable as I have nginx installed. I have create remote user in MySQL, enabled remote access but still nothing. When i cannoct from my PC with MySQL Workbench i get connection error. What can it be?

I have also followed this: enter link description here

Update

this the output of netstat:

$> netstat -ant | grep 3306 tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN

Result of nmap is more intersting though:

PORT STATE SERVICE 
22/tcp open ssh 
80/tcp open http 
443/tcp closed https 
3389/tcp closed ms-wbt-server 

I do not see 3306 but it is a port I have opened on firewall rule in GCP... How can it be is not shown?

Answer 1

Ok, I have found a mistake. It was in the GCP firewall configuration rule. The tag name of the VM was spelled wrongly. thanks.