Plesk firewall requirements
Plesk, along with all its services, can only work properly once the necessary ports have been opened on the server. As some operating systems have these ports closed by default, we’ve provided a list of services and their corresponding protocols for your reference.
|Service Name||Ports Used by the Service|
|Administrative interface of Plesk over HTTPS||TCP 8443|
|Administrative interface of Plesk over HTTP||TCP 8880|
|Web server||TCP 80, TCP 443|
|FTP server||TCP 21|
|SSH (secure shell) server||TCP 22|
|SMTP (mail sending) server||TCP 25, TCP 465, TCP 587|
|POP3 (mail retrieval) server||TCP 110, TCP 995|
|IMAP (mail retrieval) server||TCP 143, TCP 993|
|Domain Name server||UDP 53, TCP 53|
|Plesk upgrades and updates||TCP 8447|
|Plesk SQLAdmin Site||TCP 8401|
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