Sunday 21st of July 2024 07:04:41 AM

*Port List Information
Well Known Ports as defined by IANA and is used by Red Hat Enterprise Linux as default communication ports
for various services, including FTP, SSH, and Samba

PORT/LAYER NAME COMMENT 1 tcpmux TCP port service multiplexer 5 rje Remote Job Entry 7 echo Echo service 9 discard Null service for connection testing 11 systat System Status service for listing connected ports 13 daytime Sends date and time to requesting host 17 qotd Sends quote of the day to connected host 18 msp Message Send Protocol 19 chargen Character Generation 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 The 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 services (such as BIND) 63 whois++ WHOIS++, extended WHOIS services 67 bootps Bootstrap Protocol (BOOTP) services; also used by Dynamic Host Configuration Protocol (DHCP) services 68 bootpc Bootstrap (BOOTP) client; also used by Dynamic Host Control Protocol (DHCP) clients 69 tftp Trivial File Transfer Protocol (TFTP) 70 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 services on SRI-NIC machines 102/tcp iso-tsap ISO Development Environment (ISODE) network applications 105 csnet-ns Mailbox nameserver; also used by CSO nameserver 107 rtelnet Remote Telnet 109 pop2 Post Office Protocol version 2 110 pop3 Post Office Protocol version 3 111 sunrpc Remote Procedure Call (RPC) Protocol for remote command execution, used by Network Filesystem (NFS) 113 auth Authentication and Ident protocols 115 sftp Secure File Transfer Protocol (SFTP) services 117 uucp-path Unix-to-Unix Copy Protocol (UUCP) Path services 119 nntp Network News Transfer Protocol (NNTP) for the USENET discussion system 123 ntp Network Time Protocol (NTP) 137 netbios-ns NETBIOS Name Service used in Red Hat Enterprise Linux by Samba 138 netbios-dgm NETBIOS Datagram Service used in Red Hat Enterprise Linux by Samba 139 netbios-ssn NETBIOS Session Service used in Red Hat Enterprise Linux by Samba 143 imap Internet Message Access Protocol (IMAP) 161 snmp Simple Network Management Protocol (SNMP) 162 snmptrap Traps for SNMP 163 cmip-man Common Management Information Protocol (CMIP) 164 cmip-agent Common Management Information Protocol (CMIP) 174 mailq MAILQ email transport queue 177 xdmcp X Display Manager Control Protocol (XDMCP) 178 nextstep NeXTStep window server 179 bgp Border Gateway Protocol 191 prospero Prospero distributed filesystem services 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 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), a datagram protocol commonly used in Novell Netware environments 220 imap3 Internet Message Access Protocol version 3 245 link LINK / 3-DNS iQuery service 347 fatserv FATMEN file and tape management server 363 rsvp_tunnel RSVP Tunnel 369 rpc2portmap Coda file system portmapper 370 codaauth2 Coda file system authentication services 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 changing services 468 photuris Photuris session key management protocol 487 saft Simple Asynchronous File Transfer (SAFT) protocol 488 gss-http Generic Security Services (GSS) for HTTP 496 pim-rp-disc Rendezvous Point Discovery (RP-DISC) for Protocol Independent Multicast (PIM) services 500 isakmp Internet Security Association and Key Management Protocol (ISAKMP) 535 iiop Internet Inter-Orb Protocol (IIOP) 538 gdomap GNUstep Distributed Objects Mapper (GDOMAP) 546 dhcpv6-client Dynamic Host Configuration Protocol (DHCP) version 6 client 547 dhcpv6-server Dynamic Host Configuration Protocol (DHCP) version 6 Service 554 rtsp Real Time Stream Control Protocol (RTSP) 563 nntps Network News Transport Protocol over Secure Sockets Layer (NNTPS) 565 whoami Whoami user ID listing 587 submission Mail Message Submission Agent (MSA) 610 npmp-local Network Peripheral Management Protocol (NPMP) local / Distributed Queueing System (DQS) 611 npmp-gui Network Peripheral Management Protocol (NPMP) GUI / Distributed Queueing System (DQS) 612 hmmp-ind HyperMedia Management Protocol (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 High-Availability Clusters 749 kerberos-adm Kerberos version 5 (v5) 'kadmin' database administration 750 kerberos-iv Kerberos version 4 (v4) services 765 webster Network Dictionary 767 phonebook Network Phonebook 873 rsync Rsync file transfer services 992 telnets Telnet over Secure Sockets Layer (TelnetS) 993 imaps Internet Message Access Protocol over Secure Sockets Layer (IMAPS) 994 ircs Internet Relay Chat over Secure Sockets Layer (IRCS) 995 pop3s Post Office Protocol version 3 over Secure Sockets Layer (POP3S)
UNIX-specific ports and cover services ranging from email to authentication and more.
Names enclosed in brackets (for example, [service]) are either daemon names for the service or common alias(es)

PORT/LAYER NAME COMMENT 512/tcp exec Authentication for remote process execution 512/udp biff [comsat] Asynchrous mail client (biff) and service (comsat) 513/tcp login Remote Login (rlogin) 513/udp who [whod] whod user logging daemon 514/tcp shell [cmd] Remote shell (rshell) and remote copy (rcp) with no logging 514/udp syslog UNIX system logging service 515 printer [spooler] Line printer (lpr) spooler 517/udp talk Talk remote calling service and client 518/udp ntalk Network talk (ntalk) remote calling service and client 519 utime [unixtime] UNIX time (utime) protocol 520/tcp efs Extended Filename 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 newsgroup service 533/udp netwall Netwall for emergency broadcasts 540/tcp uucp [uucpd] UNIX-to-UNIX copy services 543/tcp klogin Kerberos version 5 (v5) remote login 544/tcp kshell Kerberos version 5 (v5) remote shell 548 afpovertcp Appletalk Filing Protocol (AFP) over Transmission Control Protocol (TCP) 556 remotefs [rfs_server, rfs] Brunhoff's Remote Filesystem (RFS)
Ports submitted by the network and software community to the IANA for formal registration into the port number list.

PORT/LAYER NAME COMMENT 1080 socks SOCKS network application proxy services 1236 bvcontrol [rmtcfg] Remote configuration server for Gracilis Packeten network switches[a] 1300 h323hostcallsc H.323 telecommunication Host Call Secure 1433 ms-sql-s Microsoft SQL Server 1434 ms-sql-m Microsoft SQL Monitor 1494 ica Citrix ICA Client 1512 wins Microsoft Windows Internet Name Server 1524 ingreslock Ingres Database Management System (DBMS) lock services 1525 prospero-np Prospero non-privileged 1645 datametrics [old-radius] Datametrics / old radius entry 1646 sa-msg-port [oldradacct] sa-msg-port / old radacct entry 1649 kermit Kermit file transfer and management service 1701 l2tp [l2f] Layer 2 Tunneling Protocol (LT2P) / Layer 2 Forwarding (L2F) 1718 h323gatedisc H.323 telecommunication Gatekeeper Discovery 1719 h323gatestat H.323 telecommunication Gatekeeper Status 1720 h323hostcall H.323 telecommunication Host Call setup 1758 tftp-mcast Trivial FTP Multicast 1759/udp mtftp Multicast Trivial FTP (MTFTP) 1789 hello Hello router communication protocol 1812 radius Radius dial-up authentication and accounting services 1813 radius-acct Radius Accounting 1911 mtp Starlight Networks 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 distributed messaging Server 2103 zephyr-clt Zephyr client 2104 zephyr-hm Zephyr host manager 2401 cvspserver Concurrent Versions System (CVS) client/server operations 2430/tcp venus Venus cache manager for Coda file system (codacon port) 2430/udp venus Venus cache manager for Coda file system (callback/wbc interface) 2431/tcp venus-se Venus Transmission Control Protocol (TCP) side effects 2431/udp venus-se Venus User Datagram Protocol (UDP) side effects 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 effect 2600 hpstgmgr [zebrasrv] Zebra routing[b] 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; RIP daemon for IPv6 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; OSPF for IPv6 daemon (ospf6d) 2809 corbaloc Common Object Request Broker Architecture (CORBA) naming service locator 3130 icpv2 Internet Cache Protocol version 2 (v2); used by Squid proxy caching server 3306 mysql MySQL database service 3346 trnsprntproxy Transparent proxy 4011 pxe Pre-execution Environment (PXE) service 4321 rwhois Remote Whois (rwhois) service 4444 krb524 Kerberos version 5 (v5) to version 4 (v4) ticket translator 5002 rfe Radio Free Ethernet (RFE) audio broadcasting system 5308 cfengine Configuration engine (Cfengine) 5999 cvsup [CVSup] CVSup file transfer and update tool 6000/tcp x11 [X] X Window System services 7000 afs3-fileserver Andrew File System (AFS) file server 7001 afs3-callback AFS port for callbacks to cache manager 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 for IP multicast conferencing 10080 amanda Advanced Maryland Automatic Network Disk Archiver (Amanda) backup services 11371 pgpkeyserver Pretty Good Privacy (PGP) / GNU Privacy Guard (GPG) public keyserver 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 utility 13782 bpcd Veritas NetBackup 13783 vopied Veritas VOPIE authentication daemon 22273 wnn6 [wnn4] Kana/Kanji conversion system[c] 26000 quake Quake (and related) multi-player game servers 26208 wnn6-ds Wnn6 Kana/Kanji server 33434 traceroute Traceroute network tracking tool NOTES: a. Comment from /etc/services: "Port 1236 is registered as `bvcontrol', but is also used by the Gracilis Packeten remote config server. The official name is listed as the primary name, with the unregistered name as an alias." b. Comment from /etc/services: "Ports numbered 2600 through 2606 are used by the zebra package without being registered. The primary names are the registered names, and the unregistered names used by zebra are listed as aliases." c. Comment from /etc/services: "This port is registered as wnn6, but also used under the unregistered name 'wnn4' by the FreeWnn package."
The Datagram Delivery Protocol (DDP) used on AppleTalk networks.

PORT/LAYER NAME COMMENT 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
The Kerberos network authentication protocol. Where noted, v5 refers to the Kerberos version 5 protocol.

PORT/LAYER NAME COMMENT 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 de-multiplexor 2105 eklogin Kerberos v5 encrypted remote login (rlogin)
Unregistered ports that are used by services and protocols that may be installed on your Red Hat Enterprise Linux system,
or that is necessary for communication between Red Hat Enterprise Linux and other operating systems.

PORT/LAYER NAME COMMENT 15/tcp netstat Network Status (netstat) 98/tcp linuxconf Linuxconf Linux administration 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 Gated (routing daemon) Interactive Interface 808 omirr [omirrd] Online Mirror (Omirr) file mirroring services 871/tcp supfileserv Software Upgrade Protocol (SUP) server 901/tcp swat Samba Web Administration Tool (SWAT) 953 rndc Berkeley Internet Name Domain version 9 (BIND 9) remote configuration tool 1127/tcp supfiledbg Software Upgrade 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 2150 ninstall Network Installation Service 2988 afbackup afbackup client-server backup system 3128/tcp squid Squid 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 operation center logging daemon (noclogd) 5355 hostmon NOCOL network operation center host monitoring 5680/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 Hypertext Tranfer Protocol (HTTP) alternate 8080 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 spawning program for the X Window System 10081 kamanda Amanda backup service over Kerberos 10082/tcp amandaidx Amanda index server 10083/tcp amidxtape Amanda tape server 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 (Taiwan) 24554 binkp Binkley TCP/IP Fidonet mailer daemon 27374 asp Address Search Protocol 60177 tfido Ifmail FidoNet compatible mailer service 60179 fido FidoNet electronic mail and news network
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