Why "plesk login" command generates links like "192-0-2-2.plesk.page"?

Renan Poss Moreira

Updated December 16, 2025 08:58

kb: how-to Plesk for Linux ext: le

Question

Why "plesk login" command generates links like "192-0-2-2.plesk.page"?

This can also be seen in /etc/hosts and /etc/hostname:

# tail /etc/hosts
203.0.113.2 example.203-0-113-2.plesk.page

Answer

It is a new feature (Technical domain) introduced since Plesk Obsidian 18.0.27. When a cleanly installed Plesk has a non-resolvable hostname, Plesk GUI is not secured with a valid SSL certificate and the user sees a red alert when tries to access Plesk GUI.

Plesk built a technical domain service that issues technical domain names for non-resolvable Plesk hostnames and assigns it to the servers. The technical domain name is secured by Let's Encrypt SSL certificate.

This can be disabled as follows:

After installing Plesk, by adding this in /usr/local/psa/admin/conf/panel.ini file:

[ext-onboarding]
techDomain = 0
Before installing Plesk, by adding a new environment variable:

# export PLESK_CONFIG__techDomain__hostname__enabled=0