Question
Which ports should be opened in the firewall on a Plesk server?
Answer
The list of ports that need to be opened in the firewall depend on the services that are running on a Plesk server.
Plesk interface uses port 8443 for HTTPS connections and 8880 for HTTP connections.
Other ports that are used by Plesk and related services:
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20 - FTP data transfer for active mode (TCP)
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21 - FTP (TCP)
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22 - SSH (TCP) - Linux only
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25 - SMTP (TCP)
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53 - DNS (TCP and UDP)
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80 - HTTP (TCP)
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110 - POP3 (TCP)
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123 - NTP (UDP)
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143 - IMAP (TCP)
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443 - HTTPS (TCP)
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465 - SMTPS (TCP)
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587 - SMTP (Submission) (TCP)
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953 - RNDC (TCP)
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990 - FTPS (TCP)
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993 - IMAPS (TCP)
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995 - POP3S (TCP)
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1433 - Microsoft SQL (for remote connections) (TCP) - Windows only
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3306 - MySQL (for remote connections) (TCP)
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3389 - RDP (TCP) - Windows only
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5432 - PostgreSQL (TCP) - Linux only
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8401 - SQL Admin (TCP) - Windows only
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8443 - Plesk HTTPS (TCP)
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8447 - Plesk Installer (TCP)
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8880 - Plesk HTTP (TCP)
- 49152-65535 - (TCP) for FTP passive mode - incoming connections only
Additional ports
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135, 139, 445 - (TCP) for migration - Windows only
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137, 138 - (UPD) for migration - Windows only
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10155 - (TCP) for a custom Plesk Migrator service performing miscellaneous tasks - Windows only
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10156 - (TCP) for rsync server (migration) - Windows only
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49152-65535 - (TCP) for FTP passive mode - incoming connections only
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