I cannot access server IP:10000
the connection timeout error.
In the firewall, port 10000 is open.
All domains in the server are accessible, and port 20000 is available.
How to solve problems.
have you got fail2ban running ? You may have banned yourself somehow, as you have access to the terminal you can use fail2ban-client to check your ip is not banned
use
Status for the jail: webmin-auth
|- Filter
| |- Currently failed: 4
| |- Total failed: 10
| - Journal matches: _SYSTEMD_UNIT=webmin.service - Actions
|- Currently banned: 0
|- Total banned: 0
`- Banned IP list:
Yes, after I checked that the port was open and that the firewall and TCP were listening, I used the command “sudo reboot.” The login page became accessible, but I noticed that Dovecot was down. The error was related to an SSL configuration for a site that had been deleted, which was still present in the dovecot.conf file. I removed the SSL entry and then restarted the service. Thank you very much for your efforts in solving the problem.