Ports on Linux Server with WHM

Here are some list of ports on Linux Server with WHM

Port Service TCP UDP Inbound Outbound Notes
20 FTP  

We recommend that you use SFTP via SSH, because it is more secure than FTP.

21 FTP
22 SSH
25 SMTP
26 SMTP cPanel & WHM only uses this port if you specify it in WHM’s Service Manager interface (Home >> Service Configuration >> Service Manager).
37 rdate
43 whois
53 bind cPanel & WHM only uses this port if you run a public DNS server.
80 http
110 POP3
113 ident
143 IMAP
443 https
465 SMTP, SSL/TLS
783 Apache SpamAssassin™
873 rsync
993 IMAP SSL
995 POP3 SSL
2073 RazorScanner RazorScanner is a collaborative spam-tracking database. For more information, visit the RazorScanner website.
2077 WebDAV cPanel’s Web Disk interface ( Home >> Files >> Web Disk ) uses this port.
2078 WebDAV SSL cPanel’s Web Disk interface (Home >> Files >> Web Disk) uses this port.
2079 CalDAV/CardDAV cPanel’s Calendar and Contacts feature ( Home >> Email >> Configure My Calendar and Contact Client Applications ) uses this port.
2080 CalDAV/CardDAV SSL cPanel’s Calendar and Contacts  feature ( Home >> Email >> Configure My Calendar and Contact Client Applications ) uses this port.
2082 cPanel
2083 cPanel SSL
2086 WHM
2087 WHM SSL
2089 cPanel Licensing

Warning:

You must open this port in order to contact the cPanel license servers.

2095 Webmail
2096 Webmail SSL
3306 MySQL® MySQL uses this port for remote database connections.
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