HTTP, TCP, UDP Common Ports List, Port 455, Port 443

HTTP, TCP, UDP Common Ports Table, the following lists the most commonly used communication ports including those used by services, daemons, and programs in LinuxTip: Ctrl+F to quickly find Http port number (click on the title to collapse or expand)

No1. Most Common Ports

110 Network Address Book

Port Number/Layer	Name	Comment
1	tcpmux	TCP port services multiplexing
5	rje	Remote Job Entry
7	echo	Echo service
9	discard	Null service for connection testing
11	systat	System status for listing connected ports
13	daytime	Sends the date and time to the requesting host
17	qotd	Sends a quote of the day to connected hosts
18	msp	Message Send Protocol
19	chargen	Character generator service; sends endless stream of characters
20	ftp-data	FTP data port
21	ftp	File Transfer Protocol (FTP) port; sometimes used by File Service Protocol (FSP)
22	ssh	Secure Shell (SSH) service
23	telnet	Telnet service
25	smtp	Simple Mail Transfer Protocol (SMTP)
37	time	Time protocol
39	rlp	Resource Location Protocol
42	nameserver	Internet Name Service
43	nicname	WHOIS directory service
49	tacacs	Terminal Access Controller Access-Control System for TCP/IP based authentication and access
50	re-mail-ck	Remote Mail Checking Protocol
53	domain	Domain Name Service (e.g., BIND)
63	whois++	WHOIS++, an extended WHOIS service
67	bootps	Bootstrap Protocol (BOOTP) service; also used by Dynamic Host Configuration Protocol (DHCP) service
68	bootpc	Bootstrap (BOOTP) client; also used by Dynamic Host Configuration Protocol (DHCP) client
69	tftp	Trivial File Transfer Protocol (TFTP)
7	gopher	Gopher Internet document search and retrieval
71	netrjs-1	Remote Job Service
72	netrjs-2	Remote Job Service
73	netrjs-3	Remote Job Service
73	netrjs-4	Remote Job Service
79	finger	Finger service for user contact information
80	http	Hypertext Transfer Protocol (HTTP) for World Wide Web (WWW) services
88	kerberos	Kerberos network authentication system
95	supdup	Telnet protocol extension
101	hostname	Hostname service on SRI-NIC machine
102	iso-tsap	ISO development environment (ISODE) network applications
105	csnet-ns	Mailbox name server; also used by CSO name server
107	rtelnet	Remote Telnet
109	pop2	Post Office Protocol version 2
pop3	Post Office Protocol version 3
111	sunrpc	Remote Procedure Call (RPC) protocol for remote command execution, used by Network File System (NFS)
113	auth	Authentication and Identification Protocol
115	sftp	Secure File Transfer Protocol (SFTP) service
117	uucp-path	Unix to Unix Copy Protocol (UUCP) Path Service
119	nntp	Network News Transfer Protocol (NNTP) for USENET discussion systems
123	ntp	Network Time Protocol (NTP)
137	netbios-ns	NETBIOS Name Service used by Samba in Red Hat Enterprise Linux
138	netbios-dgm	NETBIOS Datagram Service used by Samba in Red Hat Enterprise Linux
139	netbios-ssn	NETBIOS Session Service used by Samba in Red Hat Enterprise Linux
143	imap	Internet Message Access Protocol (IMAP)
161	snmp	Simple Network Management Protocol (SNMP)
162	snmptrap	SNMP Traps
163	cmip-man	Common Management Information Protocol (CMIP)
164	cmip-agent	Common Management Information Protocol (CMIP)
174	mailq	MAILQ
177	xdmcp	X Display Manager Control Protocol
178	nextstep	NeXTStep Window Server
179	bgp	Border Gateway Protocol
191	prospero	Prospero service by Clifford Neuman
194	irc	Internet Relay Chat (IRC)
199	smux	SNMP UNIX Multiplexer
201	at-rtmp	AppleTalk Routing
202	at-nbp	AppleTalk Name Binding
204	at-echo	AppleTalk Echo Service
206	at-zis	AppleTalk Zone Information
209	qmtp	Quick Mail Transfer Protocol (QMTP)
210	z39.50	NISO Z39.50 Database
213	ipx	Internetwork Packet Exchange (IPX) Protocol, commonly used datagram protocol in Novell Netware environment
220	imap3	Internet Message Access Protocol version 3
245	link	LINK
347	fatserv	Fatmen Server
363	rsvp_tunnel	RSVP Tunnel
369	rpc2portmap	Coda File System Portmapper
370	codaauth2	Coda File System Authentication Service
372	ulistproc	UNIX Listserv
389	ldap	Lightweight Directory Access Protocol (LDAP)
427	svrloc	Service Location Protocol (SLP)
434	mobileip-agent	Mobile Internet Protocol (IP) Agent
435	mobilip-mn	Mobile Internet Protocol (IP) Manager
443	https	Secure Hypertext Transfer Protocol (HTTP)
444	snpp	Simple Network Paging Protocol
445	microsoft-ds	Server Message Block (SMB) over TCP/IP
464	kpasswd	Kerberos Password and Key Change Service
468	photuris	Photuris Session Key Management Protocol
487	saft	Simple Asymmetric File Transfer (SAFT) Protocol
488	gss-http	Generic Security Service (GSS) for HTTP
496	pim-rp-disc	Protocol Independent Multicast (PIM) Service's Rendezvous Point Discovery (RP-DISC)
500	isakmp	Internet Security Association and Key Management Protocol (ISAKMP)
535	iiop	Internet Inter-ORB Protocol (IIOP)
538	gdomap	GNUstep Distributed Object Mapper (GDOMAP)
546	dhcpv6-client	Dynamic Host Configuration Protocol (DHCP) version 6 client
547	dhcpv6-server	Dynamic Host Configuration Protocol (DHCP) version 6 server
554	rtsp	Real Time Streaming Protocol (RTSP)
563	nntps	Network News Transfer Protocol over Secure Sockets Layer (NNTPS)
565	whoami	whoami
587	submission	Mail Submission Agent (MSA)
610	npmp-local	Network Peripheral Management Protocol (NPMP) local/Distributed Queue System (DQS)
611	npmp-gui	Network Peripheral Management Protocol (NPMP) GUI/Distributed Queue System (DQS)
612	hmmp-ind	HMMP Indication/DQS
631	ipp	Internet Printing Protocol (IPP)
636	ldaps	Lightweight Directory Access Protocol over Secure Sockets Layer (LDAPS)
674	acap	Application Configuration Access Protocol (ACAP)
694	ha-cluster	Heartbeat services for clusters with high availability
749	kerberos-adm	Kerberos version 5 (v5) "kadmin" database administration
750	kerberos-iv	Kerberos version 4 (v4) services
765	webster	Online Dictionary
767	phonebook	Phonebook
873	rsync	rsync File Transfer Service
992	telnets	Telnet over Secure Socket Layer (TelnetS)
993	imaps	Internet Message Access Protocol over Secure Socket Layer (IMAPS)
994	ircs	Internet Relay Chat over Secure Socket Layer (IRCS)
995	pop3s	Post Office Protocol version 3 over Secure Socket Layer (POPS3)

UNIX-specific Ports (The following ports are unique to UNIX and cover services from email to authentication. The names in brackets (e.g., [service]) are the service's daemon name or its common alias)

Port Number/Layer	Name	Comment
512/tcp	exec	Used for authentication of remote processes executed
512/udp	biff[comsat]	Asynchronous mail client (biff) and service (comsat)
513/tcp	login	Remote login (rlogin)
513/udp	who[whod]	List of logged-in users
514/tcp	shell[cmd]	Remote shell (rshell) and remote copy (rcp) without logging in
514/udp	syslog	UNIX system logging service
515	printer[spooler]	Printer (lpr) spooler
517/udp	talk	Remote conversation service and client
518/udp	ntalk	Network talk (ntalk), remote conversation service and client
519	utime[unixtime]	UNIX time protocol (utime)
520/tcp	efs	Extended File Name Server (EFS)
520/udp	router[route,routed]	Routing Information Protocol (RIP)
521	ripng	Routing Information Protocol for Internet Protocol version 6 (IPv6)
525	timed[timeserver]	Time daemon (timed)
526/tcp	tempo[newdate]	Tempo
530/tcp	courier[rpc]	Courier Remote Procedure Call (RPC) protocol
531/tcp	conference[chat]	Internet Relay Chat
532	netnews	Netnews
533/udp	netwall	Netwall for emergency broadcasts
540/tcp	uucp[uucpd]	Unix-to-Unix Copy Protocol service
543/tcp	klogin	Kerberos version 5 (v5) remote login
544/tcp	kshell	Kerberos version 5 (v5) remote shell
548	afpovertcp	Apple Filing Protocol (AFP) over Transmission Control Protocol (TCP)
556	remotefs[rfs_server,rfs]	Brunhoff's Remote File System (RFS)

Registered Ports (Lists ports formally registered with IANA by the network and software communities for inclusion in the port number list)

Notes:
The comments in /etc/services are as follows: Port 1236 is registered as "bvcontrol", but it is also used by the Gracilis Packeten Remote Configuration Server. The official name is listed as the primary name, and the unregistered name used by Gracilis is listed as an alias.
Comments in /etc/services: Ports 2600 to 2606 are used by the zebra package without registration. The registered name is the primary name, and the unregistered name used by zebra is listed as an alias.
Comments in the /etc/services file: This port is registered as wnn6, but the unregistered "wnn4" is also used in the FreeWnn package.

Port Number/Layer	Name	Comment
1080	socks	SOCKS network application proxy service
1236	bvcontrol[rmtcfg]	Garcilis Packeten remote configuration server
1300	h323hostcallsc	H.323 teleconfernce host call security
1433	ms-sql-s	Microsoft SQL Server
1434	ms-sql-m	Microsoft SQL **
1494	ica	Citrix ICA client
1512	wins	Microsoft Windows Internet Name Server
1524	ingreslock	Ingres Database Management System (DBMS) lock service
1525	prospero-np	Prospero without privileges
1645	datametrics[old-radius]	Datametrics/old radius project
1646	sa-msg-port[oldradacct]	sa-msg-port/old radacct project
1649	kermit	Kermit file transfer and management service
1701	l2tp[l2f]	Layer Two Tunneling Protocol (L2TP)/Layer Two Forwarding (L2F)
1718	h323gatedisc	H.323 gatekeeper discovery protocol
1719	h323gatestat	H.323 gatekeeper statistics
172	h323hostcall	H.323 telephony host call setup
1758	tftp-mcast	Trivial File Transfer Protocol (TFTP) multicast
1759	mtftp	Multicast TFTP (MTFTP)
1789	hello	Hello router communication port
1812	radius	RADIUS dial-in authentication and accounting service
1813	radius-acct	RADIUS accounting
1911	mtp	Starlight Network multimedia transport protocol (MTP)
1985	hsrp	Cisco Hot Standby Router Protocol
1986	licensedaemon	Cisco License Management Daemon
1997	gdp-port	Cisco Gateway Discovery Protocol (GDP)
2049	nfs[nfsd]	Network File System (NFS)
2102	zephyr-srv	Zephyr Notification Transmission and Sending Server
2103	zephyr-clt	Zephyr serv-hm connection
2104	zephyr-hm	Zephyr Host Manager
2401	cvspserver	Concurrent Versions System (CVS) client/server operations
243/tcp	venus	Venus Cache Manager for Coda File System (codacon port)
243/udp	venus	Venus Cache Manager for Coda File System (callback/wbc interface)
2431/tcp	venus-se	Venus Side Effects over Transmission Control Protocol (TCP)
2431/udp	venus-se	Venus Side Effects over User Datagram Protocol (UDP)
2432/udp	codasrv	Coda File System Server Port
2433/tcp	codasrv-se	Coda File System TCP Side Effects
2433/udp	codasrv-se	Coda File System UDP SFTP Side Effects
2600	hpstgmgr[zebrasrv]	HPSTGMGR; Zebra Routing
2601	discp-client[zebra]	DISCP Client; Zebra Integrated Shell
2602	discp-server[ripd]	DISCP Server; Routing Information Protocol Daemon (ripd)
2603	servicemeter[ripngd]	Service Meter; Routing Information Protocol for IPv6 (ripngd)
2604	nsc-ccs[ospfd]	NSC CCS; Open Shortest Path First Daemon (ospfd)
2605	nsc-posa	NSC POSA; Border Gateway Protocol Daemon (bgpd)
2606	netmon[ospf6d]	Dell Netmon; Open Shortest Path First for IPv6 (ospf6d)
2809	corbaloc	Common Object Request Broker Architecture (CORBA) Naming Service **
3130	icpv2	Internet Cache Protocol version 2 (v2); used by Squid proxy cache server
3306	mysql	MySQL Database Service
3346	trnsprntproxy	Transparent Proxy
4011	pxe	Preboot Execution Environment (PXE) Service
4321	rwhois	Remote Whois (rwhois) Service
4444	krb524	Kerberos version 5 (v5) to version 4 (v4) Ticket Converter
5002	rfe	Radio Frequency Ethernet (RFE) Audio Broadcast System
5308	cfengine	Configuration Engine (Cfengine)
5999	cvsup[CVSup]	CVSup File Transfer and Update Tool
6000	x11[X]	X Window System Service
7000	afs3-fileserver	Andrew File System (AFS) File Server
7001	afs3-callback	AFS Port for Callbacks to Cache Managers
7002	afs3-prserver	AFS User and Group Database
7003	afs3-vlserver	AFS Volume Location Database
7004	afs3-kaserver	AFS Kerberos Authentication Service
7005	afs3-volser	AFS Volume Management Server
7006	afs3-errors	AFS Error Interpretation Service
7007	afs3-bos	AFS Basic Overseer Process
7008	afs3-update	AFS Server-to-Server Updater
7009	afs3-rmtsys	AFS Remote Cache Manager Service
9876	sd	Session Director
10080	amanda	Advanced Maryland Automated Network Disk Archiver (Amanda) Backup Service
11371	pgpkeyserver	Pretty Good Privacy (PGP) / GNU Privacy Guard (GPG) Public Key Server
11720	h323callsigalt	H.323 Call Signal Alternate
13720	bprd	Veritas NetBackup Request Daemon (bprd)
13721	bpdbm	Veritas NetBackup Database Manager (bpdbm)
13722	bpjava-msvc	Veritas NetBackup Java/Microsoft Visual C++ (MSVC) Protocol
13724	vnetd	Veritas Network Tool
13782	bpcd	Vertias NetBackup
13783	vopied	Veritas VOPIED Protocol
22273	wnn6[wnn4]	Kana/Kanji Conversion System
26000	quake	Quake (and related) Multiplayer Game Server
26208	wnn6-ds
33434	traceroute	Traceroute Network Trace Tool

Datagram Delivery Protocol Ports (Displays a list of ports related to the Datagram Delivery Protocol (DDP). DDP is used on AppleTalk networks)

Port Number/Layer	Name	Comments
1/ddp	rtmp	Routing Table Management Protocol
2/ddp	nbp	Name Binding Protocol
4/ddp	echo	AppleTalk Echo Protocol
6/ddp	zip	Zone Information Protocol

Kerberos (Project Athena/MIT) Ports (A list of ports related to the Kerberos Network Authentication Protocol is marked here, v5 represents the Kerberos version 5 protocol, these ports are not registered with IANA)

Port Number/Layer	Name	Comments
751	kerberos_master	Kerberos Authentication
752	passwd_server	Kerberos Password (kpasswd) Server
754	krb5_prop	Kerberos v5 Slave Propagation
760	krbupdate[kreg]	Kerberos Registration
1109	kpop	Kerberos Post Office Protocol (KPOP)
2053	knetd	Kerberos Multicast Daemon
2105	eklogin	Kerberos v5 Encrypted Remote Login (rlogin)

Unregistered Ports (These ports may be used by services or protocols installed on your Red Hat Enterprise Linux system, or they may be necessary for communication between Red Hat Enterprise Linux and machines running other operating systems)

2988

Port Number/Layer	Name	Comments
15/tcp	netstat	Network Status (netstat)
98/tcp	linuxconf	Linuxconf Linux Management Tool
106	poppassd	Post Office Protocol Password Change Daemon (POPPASSD)
465/tcp	smtps	Simple Mail Transfer Protocol over Secure Sockets Layer (SMTPS)
616/tcp	gii	Interactive Interface using ** (Routing Daemon)
808	omirr[omirrd]	Online Mirror (Omirr) File Mirroring Service
871/tcp	supfileserv	Software Update Protocol (SUP) Server
901/tcp	swat	Samba Web Administration Tool (SWAT)
953	rndc	Berkeley Internet Name Domain Version 9 (BIND 9) Remote Name Daemon Configuration Tool
1127	sufiledbg	Software Update Protocol (SUP) Debugging
1178/tcp	skkserv	Simple Kana to Kanji (SKK) Japanese Input Server
1313/tcp	xtel	French Minitel Text Information System
1529/tcp	support[prmsd,gnatsd]	GNATS Bug-Tracking System
2003/tcp	cfinger	GNU Finger Service
2150	ninstall	Network Installation Service
afbackup	afbackup client-server backup system
3128/tcp	squid	Squid World Wide Web proxy cache
3455	prsvp	RSVP port
5432	postgres	PostgreSQL database
4557/tcp	fax	FAX transmission service (old service)
4559/tcp	hylafax	HylaFAX client-server protocol (new service)
5232	sgi-dgl	SGI Distributed Graphics Library
5354	noclog	NOCOL Network Operations Center log daemon (noclogd)
5355	hostmon	NOCOL Network Operations Center host monitoring
568/tcp	canna	Canna Japanese character input interface
6010/tcp	x11-ssh-offset	Secure Shell (SSH) X11 forwarding offset
6667	ircd	Internet Relay Chat daemon (ircd)
7100/tcp	xfs	X font server (XFS)
7666/tcp	tircproxy	Tircproxy IRC proxy service
8008	http-alt	An alternative for Hypertext Transfer Protocol (HTTP)
808	webcache	World Wide Web (WWW) caching service
8081	tproxy	Transparent proxy
9100/tcp	jetdirect[laserjet,hplj]	Hewlett-Packard (HP) JetDirect network printing service
9359	mandelspawn[mandelbrot]	Parallel Mandelbrot set generator for X Window System
10081	kamanda	Amanda backup service with Kerberos
10082/tcp	amandaidx	Amanda backup service
10083/tcp	amidxtape	Amanda backup service
20011	isdnlog	Integrated Services Digital Network (ISDN) logging system
20012	vboxd	ISDN voice box daemon (vboxd)
22305/tcp	wnn4_Kr	kWnn Korean input system
22289/tcp	wnn4_Cn	cWnn Chinese input system
22321/tcp	wnn4_Tw	tWnn Chinese input system (**)
24554	binkp	Binkley TCP/IP FidoNet mail program daemon
27374	asp	Address Search Protocol
60177	tfido	Ifmail FidoNet compatible mail service
60179	fido	FidoNet email and news network

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