Ports Used by Plesk¶
On servers protected by a firewall, the following ports must not be blocked to ensure proper operation of Plesk and accessibility of Plesk-managed services.
Service name |
Ports used by service |
|---|---|
Administrative interface of Plesk over HTTPS |
TCP 8443 |
Administrative interface of Plesk over HTTP |
TCP 8880 * |
Web server and Plesk Updater |
TCP 80, TCP 443 |
FTP server |
TCP 20, 21, 990 |
SSH (secure shell) server |
TCP 22 |
SMTP (mail sending) server |
TCP 25, TCP 465 |
POP3 (mail retrieval) server |
TCP 110, TCP 995 |
IMAP (mail retrieval) server |
TCP 143, TCP 993 |
MySQL/MariaDB server |
TCP 3306 |
MS SQL server |
TCP 1433 |
Tomcat Java service |
TCP 9080, 9008 |
Licensing Server connections |
TCP 443 |
Domain name server |
UDP 53, TCP 53 |
Plesk upgrades and updates |
TCP 8447 |