Popular Port Numbers

Control Panels

      cPanel            WHM             Plesk            Helm           Ensim
* http: 2082 * http: 2086 * https: 8443 * https:8086 * https:19638
* https: 2083 * https: 2087 * license: 5224

Popular Packages

      Virtuozzo         Urchin
* https: 4643 * http: 9999

Service Specific

20   FTP-Data/TCP
21 FTP/TCP
22 SSH/TCP
23 TELNET/TCP
25 SMTP/TCP
53 DNS/TCP-UDP
80 HTTP/TCP
110 POP3/TCP
143 IMAP/TCP
161 snmp/TCP
162 snmptrap/TCP
443 HTTPS/TCP
465 Secure SMTP/TCP
623 IPMI/UDP
664 IPMI/UDP
993 Secure POP/TCP
1433 ms-sql-s/TCP
1434 ms-sql-m/TCP
3389 RDP/TCP
6400 crystalreports/TCP
6401 crystalenterprise/TCP
6666 irc-serv/TCP
6667 irc/TCP
6668 irc/TCP

Windows Media Server

Delivering a unicast stream

Application Protocol	Protocol      Port	Description
RTSP TCP 554 (In/Out) Used for accepting incoming RTSP client connections and for delivering data
packets to clients that are streaming by using RTSPT.
RTSP UDP 5004 (Out) Used for delivering data packets to clients that are streaming by using RTSPU.
RTSP UDP 5005 (In/Out) Used for receiving packet loss information from clients and providing
synchronization information to clients that are streaming by using RTSPU.
MMS TCP 1755 (In/Out) Used for accepting incoming MMS client connections and for delivering data
packets to clients that are streaming by using MMST.
MMS UDP 1755 (In/Out) Used for receiving packet loss information from clients and providing
synchronization information to clients that are streaming by using MMSU.
MMS UDP 1024-5000 (Out) Used for delivering data packets to clients that are streaming by using MMSU.
Open only the necessary number of ports.
HTTP TCP 80 (In/Out) Used for accepting incoming HTTP client connections and for delivering data
packets to clients that are streaming by using HTTP.

Multicast uses all ports unless specifically configured to use a range.