How to turn on Firewall in Plesk Login to Plesk Click on Tools & Settings. Click on Firewall in the main section of Security. The system will be on Switch off, press Switch on at all. 151Private Hosting (Plesk)Related Knowledge Base Posts -How to create a Database in Private Host (Plesk)?How to Install NodeJS in Plesk Server?How to Check Plesk Login Access via My Z.com Portal?