Know More About cPanel Ports

November 7, 2011 / cPanel

This is a list of Internet socket port numbers used by protocols of the Transport Layer of the Internet Protocol Suite for the establishment of host-to-host communications.

The range of port numbers is very large. That is 0 to 49151 but 0 to 1023 are popular ports. The port numbers are utilized by system processes that provide widely utilized types of network servers. On an OS like Unix, a process must execute with superuser privileges to be able to bind a network socket to an IP address utilizing one of the well-known ports.

Port TCP UDP Description Status
0   UDP Reserved Official
1 TCP UDP TCP Port Service Multiplexer (TCPMUX) Official
2 TCP UDP CompressNET Management Utility Official
3 TCP UDP CompressNET Compression Process Official
4 TCP UDP Unassigned Official
5 TCP UDP Remote Job Entry Official
7 TCP UDP Echo Protocol Official
8 TCP UDP Unassigned Official
9 TCP UDP Discard Protocol Official
10 TCP UDP Unassigned Official
11 TCP UDP Active Users Official
12 TCP UDP Unassigned Official
13 TCP UDP Daytime Protocol (RFC 867) Official
14 TCP UDP Unassigned Official
15 TCP UDP Previously netstat service Unofficial
16 TCP UDP Unassigned Official
17 TCP UDP Quote of the Day Official
18 TCP UDP Message Send Protocol Official
19 TCP UDP Character Generator Protocol Official
20 TCP   FTP—data transfer Official
21 TCP   FTP—control Official
22 TCP UDP Secure Shell (SSH)—used for secure logins, file transfers (scp, sftp) and port forwarding Official
23 TCP   Telnet protocol—unencrypted text communications Official
24 TCP UDP Priv-mail : any private mail system. Official
25 TCP   Simple Mail Transfer Protocol (SMTP)—used for e-mail routing between mail servers Official
26 TCP UDP Unassigned Official
27 TCP UDP NSW User System FE Official
29 TCP UDP MSG ICP Official
33 TCP UDP Display Support Protocol Official
34 TCP UDP Remote File (RF)—used to transfer files between machines Unofficial
35 TCP UDP Any private printer server protocol Official
37 TCP UDP TIME protocol Official
39 TCP UDP Secure Shell (SSH)—used for secure logins, file transfers (scp, sftp), and port forwarding Official
40 TCP UDP Unassigned Official
41 TCP UDP Graphics Official
42 TCP UDP ARPA Host Name Server Protocol Official
42 TCP UDP Windows Internet Name Service Unofficial
43 TCP   WHOIS protocol Official
47 TCP UDP NI FTP Official
49 TCP UDP TACACS Login Host protocol Official
50 TCP UDP Remote Mail Checking Protocol Official
51 TCP UDP IMP Logical Address Maintenance Official
52 TCP UDP XNS (Xerox Network Systems) Time Protocol Official
53 TCP UDP Domain Name System (DNS) Official
54 TCP UDP XNS (Xerox Network Systems) Official
55 TCP UDP ISI Graphics Language (ISI-GL) Official
56 TCP UDP XNS (Xerox Network Systems) Authentication Official
56 TCP UDP Route Access Protocol (RAP) Unofficial
57 TCP   Mail Transfer Protocol (RFC 780) Unofficial
58 TCP UDP XNS (Xerox Network Systems) Mail Official
67   UDP Bootstrap Protocol (BOOTP) Server; also used by Dynamic Host Configuration Protocol (DHCP) Official
68   UDP Bootstrap Protocol (BOOTP) Client; also used by Dynamic Host Configuration Protocol (DHCP) Official
69   UDP Trivial File Transfer Protocol (TFTP) Official
70 TCP   Gopher protocol Official
71 TCP   NETRJS protocol Official
72 TCP   NETRJS protocol Official
73 TCP   NETRJS protocol Official
74 TCP   NETRJS protocol Official
79 TCP   Finger protocol Official
80 TCP UDP Hypertext Transfer Protocol (HTTP) Official
81 TCP   Torpark—Onion routing Unofficial
82   UDP Torpark—Control Unofficial
83 TCP   MIT ML Device Official
88 TCP UDP Kerberos—authentication system Official
90 TCP UDP NIC hostname Official
90 TCP UDP Pointcast Unofficial
99 TCP   WIP Message protocol Unofficial
101 TCP   Microsoft EPMAP (End Point Mapper), also known as DCE/RPC Locator service, is used to remotely manage services including DHCP server, DNS server and WINS. Also used by DCOM Official
102 TCP   ISO-TSAP (Transport Service Access Point) Class 0 protocol Official
104 TCP UDP ACR/NEMA Digital Imaging and Communications in Medicine Official
105 TCP UDP CCSO Nameserver Protocol (Qi/Ph) Official
107 TCP   Remote TELNET Service protocol Official
108 TCP UDP SNA Gateway Access Server Official
109 TCP   Post Office Protocol v2 (POP2) Official
110 TCP   Post Office Protocol v3 (POP3) Official
111 TCP UDP ONC RPC (SunRPC) Official
113 TCP   ident—Authentication Service/Identification Protocol, used by IRC servers to identify users Official
113   UDP Authentication Service (auth) Official
115 TCP   Simple File Transfer Protocol (SFTP) Official
117 TCP   UUCP Path Service Official
118 TCP UDP SQL (Structured Query Language) Services Official
119 TCP   Network News Transfer Protocol (NNTP)—retrieval of newsgroup messages Official
123   UDP Network Time Protocol (NTP)—used for time synchronization Official
135 TCP UDP DCE endpoint resolution Official
135 TCP UDP Simple Network Management Protocol Trap (SNMP TRAP) Unofficial
137 TCP UDP NetBIOS NetBIOS Name Service Official
138 TCP UDP NetBIOS NetBIOS Datagram Service Official
139 TCP UDP NetBIOS NetBIOS Session Service Official
143 TCP   Internet Message Access Protocol (IMAP)—management of email messages Official
152 TCP UDP Background File Transfer Program (BFTP) Official
153 TCP UDP SGMP, Simple Gateway Monitoring Protocol Official
156 TCP UDP SQL Service Official
158 TCP UDP DMSP, Distributed Mail Service Protocol Unofficial
161   UDP Simple Network Management Protocol (SNMP) Official
162 TCP UDP HTTP-mgmt Official
170 TCP   Print-srv, Network PostScript[citation needed] Official
175 TCP   VMNET (IBM z/VM, z/OS & z/VSE – Network Job Entry(NJE)) Official
177 TCP UDP X Display Manager Control Protocol (XDMCP) Official
179 TCP   BGP (Border Gateway Protocol) Official
194 TCP UDP Internet Relay Chat (IRC) Official
199 TCP UDP SMUX, SNMP Unix Multiplexer Official
201 TCP UDP AppleTalk Routing Maintenance Official
209 TCP UDP The Quick Mail Transfer Protocol Official
210 TCP UDP ANSI Z39.50 Official
213 TCP UDP Internetwork Packet Exchange (IPX) Official
218 TCP UDP Message posting protocol (MPP) Official
220 TCP UDP Internet Message Access Protocol (IMAP), version 3 Official
256 TCP UDP 2DEV “2SP” Port Unofficial
259 TCP UDP ESRO, Efficient Short Remote Operations Official
264 TCP UDP BGMP, Border Gateway Multicast Protocol Official
280 TCP UDP http-mgmt Official
308 TCP   Novastor Online Backup Official
311 TCP   Mac OS X Server Admin (officially AppleShare IP Web administration) Official
318 TCP UDP PKIX TSP, Time Stamp Protocol Official
319   UDP Precision time protocol event messages Official
320   UDP Precision time protocol general messages Official
323 TCP UDP IMMP, Internet Message Mapping Protocol Unofficial
350 TCP UDP MATIP-Type A, Mapping of Airline Traffic over Internet Protocol Official
351 TCP UDP MATIP-Type B, Mapping of Airline Traffic over Internet Protocol Official
366 TCP UDP ODMR, On-Demand Mail Relay Official
369 TCP UDP Rpc2portmap Official
370 TCP   codaauth2—Coda authentication server Official
370   UDP codaauth2—Coda authentication server Official
370   UDP securecast1—Outgoing packets to NAI’s servers [dead link] Unofficial
371 TCP UDP ClearCase albd Official
383 TCP UDP HP data alarm manager Official
384 TCP UDP A Remote Network Server System Official
387 TCP UDP AURP, AppleTalk Update-based Routing Protocol Official
389 TCP UDP Lightweight Directory Access Protocol (LDAP) Official
401 TCP UDP UPS Uninterruptible Power Supply Official
402 TCP   Altiris, Altiris Deployment Client Unofficial
411 TCP   Direct Connect Hub Unofficial
412 TCP   Direct Connect Client-to-Client Unofficial
427 TCP UDP Service Location Protocol (SLP) Official
443 TCP   HTTPS (Hypertext Transfer Protocol over SSL/TLS) Official
444 TCP UDP SNPP, Simple Network Paging Protocol (RFC 1568) Official
445 TCP   Microsoft-DS Active Directory, Windows shares Official
445 TCP   Microsoft-DS SMB file sharing Official
464 TCP UDP Kerberos Change/Set password Official
465 TCP   Cisco protocol Unofficial
465 TCP   SMTP over SSL Unofficial
475 TCP UDP tcpnethaspsrv (Aladdin Knowledge Systems Hasp services, TCP/IP version) Official
497 TCP   Dantz Retrospect Official
500 TCP   Qmatic Qwin communication port Unofficial
500   UDP Internet Security Association and Key Management Protocol (ISAKMP) Official
501 TCP   STMF, Simple Transportation Management Framework—DOT NTCIP 1101 Unofficial
502 TCP UDP asa-appl-proto, Protocol Unofficial
502 TCP UDP Modbus, Protocol Unofficial
504 TCP UDP Citadel—multiservice protocol for dedicated clients for the Citadel groupware system Official
510 TCP   First Class Protocol Unofficial
512 TCP   Rexec, Remote Process Execution Official
512   UDP comsat, together with biff Official
513 TCP   monitor, Remote Monitor Official
513   UDP Who Official
514 TCP   Shell—used to execute non-interactive commands on a remote system (Remote Shell, rsh, remsh) Official
514   UDP Syslog—used for system logging Official
515 TCP   Line Printer Daemon—print service Official
517   UDP Talk Official
518   UDP Ntalk Official
520 TCP   efs, extended file name server Official
520   UDP Routing Information Protocol (RIP) Official
524 TCP UDP NetWare Core Protocol (NCP) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc. Official
525   UDP Timed, Timeserver Official
530 TCP UDP RPC Official
531 TCP UDP AOL Instant Messenger Unofficial
532 TCP   netnews Official
533   UDP netwall, For Emergency Broadcasts Official
540 TCP   UUCP (Unix-to-Unix Copy Protocol) Official
542 TCP UDP Commerce (Commerce Applications) Official
543 TCP   Klogin, Kerberos login Official
544 TCP   Kshell, Kerberos Remote shell Official
545 TCP   OSIsoft PI (VMS), OSISoft PI Server Client Access Unofficial
546 TCP UDP DHCPv6 client Official
547 TCP UDP DHCPv6 server Official
548 TCP   Apple Filing Protocol (AFP) over TCP Official
550   UDP new-rwho, new-who Official
554 TCP UDP Real Time Streaming Protocol (RTSP) Official
556 TCP   Remotefs, RFS, rfs_server Official
560   UDP Doom, the first online first-person shooter Official
561   UDP monitor Official
563 TCP UDP NNTP protocol over TLS/SSL (NNTPS) Official
587 TCP   e-mail message submission (SMTP) Official
591 TCP   FileMaker 6.0 (and later) Web Sharing (HTTP Alternate, also see port 80) Official
593 TCP UDP HTTP RPC Ep Map, Remote procedure call over Hypertext Transfer Protocol, often used byDistributed Component Object Model services and Microsoft Exchange Server Official
604 TCP   TUNNEL profile, a protocol for BEEP peers to form an application layer tunnel Official
623   UDP ASF Remote Management and Control Protocol (ASF-RMCP) Official
631 TCP UDP Internet Printing Protocol (IPP) Official
631 TCP UDP Common Unix Printing System (CUPS) Unofficial
635 TCP UDP RLZ DBase Official
636 TCP UDP Lightweight Directory Access Protocol over TLS/SSL (LDAPS) Official
639 TCP UDP MSDP, Multicast Source Discovery Protocol Official
641 TCP UDP SupportSoft Nexus Remote Command (control/listening): A proxy gateway connecting remote control traffic Official
646 TCP UDP LDP, Label Distribution Protocol, a routing protocol used in MPLS networks Official
647 TCP   DHCP Failover protocol Official
648 TCP   RRP (Registry Registrar Protocol) Official
651 TCP UDP IEEE-MMS Official
652 TCP   DTCP, Dynamic Tunnel Configuration Protocol Unofficial
653 TCP UDP SupportSoft Nexus Remote Command (data): A proxy gateway connecting remote control traffic Official
654 TCP   Media Management System (MMS) Media Management Protocol (MMP) Official
657 TCP UDP IBM RMC (Remote monitoring and Control) protocol, used by System p5 AIX Integrated Virtualization Manager (IVM) and Hardware Management Console to connect managed logical partitions (LPAR)to enable dynamic partition reconfiguration Official
660 TCP   Mac OS X Server administration Official
665 TCP   sun-dr, Remote Dynamic Reconfiguration Unofficial
666   UDP EPP (Extensible Provisioning Protocol), is a protocol for communication between domain name registries and registrars (RFC 5734) Official
674 TCP   ACAP (Application Configuration Access Protocol) Official
691 TCP   MS Exchange Routing Official
692 TCP   Hyperwave-ISP Official
694 TCP UDP Linux-HA High availability Heartbeat Official
695 TCP   IEEE-MMS-SSL (IEEE Media Management System over SSL) Official
698   UDP OLSR (Optimized Link State Routing) Official
699 TCP   Access Network Official
700 TCP   LMP (Link Management Protocol (Internet)), is a protocol that runs between a pair of nodes and is used to manage traffic engineering (TE) links Official
701 TCP   Microsoft Net. TCP Port Sharing Service Official
702 TCP   IRIS (Internet Registry Information Service) over BEEP (Blocks Extensible Exchange Protocol) (RFC 3983) Official
706 TCP   Secure Internet Live Conferencing (SILC) Official
711 TCP   Cisco Tag Distribution Protocol —being replaced by the MPLS Label Distribution Protocol Official
712 TCP   Topology Broadcast based on Reverse-Path Forwarding routing protocol (TBRPF) (RFC 3684) Official
712   UDP Promise RAID Controller Unofficial
720 TCP   SMQP, Simple Message Queue Protocol Unofficial
749 TCP UDP Kerberos (protocol) administration Official
750 TCP   rfile Official
750   UDP loadav Official
750   UDP kerberos-iv, Kerberos version IV Official
751 TCP UDP pump Official
751 TCP UDP kerberos_master, Kerberos authentication Unofficial
752 TCP   qrh Official
752   UDP qrh Official
752   UDP passwd_server, Kerberos Password (kpasswd) server Unofficial
753 TCP   Reverse Routing Header (rrh)[35] Official
753   UDP Reverse Routing Header (rrh) Official
753   UDP userreg_server, Kerberos userreg server Unofficial
754 TCP   tell send Official
754 TCP   krb5_prop, Kerberos v5 slave propagation Unofficial
754   UDP tell send Official
760 TCP UDP ns Official
760 TCP UDP krbupdate [kreg], Kerberos registration Unofficial
782 TCP   Conserver serial-console management server Unofficial
783 TCP   SpamAssassin spamd daemon Unofficial
808 TCP   VMware Virtual Infrastructure Client (UDP from the server being managed to management console) Official
829 TCP   CMP (Certificate Management Protocol) Unofficial
843 TCP   Adobe Flash Unofficial
847 TCP   DHCP Failover protocol Official
848 TCP UDP Group Domain Of Interpretation (GDOI) protocol Official
860 TCP   iSCSI (RFC 3720) Official
873 TCP   rsync file synchronisation protocol Official USA only
888 TCP   cddbp, CD DataBase (CDDB) protocol (CDDBP)—unassigned but widespread use Unofficial
901 TCP   Samba Web Administration Tool (SWAT) Unofficial
901 TCP   VMware Virtual Infrastructure Client (UDP from the server being managed to the management console) Unofficial
901   UDP VMware Server Console (TCP from the management console to server being Managed) Unofficial
902 TCP   ideafarm-door Official
902 TCP   idea farm-door Unofficial
902   UDP VMware Server Console (TCP from the management console to the server being Managed) Official
902   UDP VMware Server Alternate (if 902 is in use, i.e. SUSE Linux) Unofficial
903 TCP   VMware Remote Console Unofficial
904 TCP   VMware Server Alternate (if 902 is in use, i.e. SUSE linux) Unofficial
911 TCP   Network Console on Acid (NCA)—local tty redirection over OpenSSH Unofficial
944   UDP Network File System (protocol) Service Unofficial
953 TCP UDP Domain Name System (DNS) RNDC Service Unofficial
973   UDP Network File System (protocol) over IPv6 Service Unofficial
981 TCP   SofaWare Technologies Remote HTTPS management for firewall devices running embedded Check Point FireWall-1 software Unofficial
987 TCP   Microsoft This Secure Hypertext Transfer Protocol (HTTPS) port makes Windows SharePoint Services viewable through Remote Web Workplace Unofficial
989 TCP UDP FTPS Protocol (data): FTP over TLS/SSL Official
990 TCP UDP FTPS Protocol (control): FTP over TLS/SSL Official
991 TCP UDP NAS (Netnews Administration System) Official
992 TCP UDP TELNET protocol over TLS/SSL Official
993 TCP   Internet Message Access Protocol over SSL (IMAPS) Official
995 TCP   Post Office Protocol 3 over TLS/SSL (POP3S) Official
999 TCP   ScimoreDB Database System Unofficial
1002 TCP   Opsware agent (aka cogbot) Unofficial
1023 TCP UDP Reserved Official

Note :

Official Port is registered with IANA for the application
Unofficial Port is not registered with IANA for the application
Multiple use Multiple applications are known to use this port.

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