This is a listing of all default open ports in cPanel server. You must open all of these ports in your server firewall to run the cPanel perfectly. These default ports are configured as opened in the firewall like CSF for a cPanel server.
20 FTP
21 FTP
22 SSH
37 rdate
25 SMTP
26 SMTP
110 POP3
143 IMAP4
465 SMTP TLS/SSL
783 SpamAssassin
993 IMAP4 SSL
995 POP3 SSL
2095 Webmail
2096 Webmail SSL
53 DNS
80 HTTP
443 HTTPS
3306 MySQL
2077 WebDAV
2078 WebDAV SSL
43 whois
113 ident
873 rsync
6666 IRC
2082 cPanel
2083 cPanel SSL
2086 WHM
2087 WHM SSL
2089 cPanel license
Originally posted 2016-01-11 05:53:17.