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0/TCP,UDP Reserved; do not use Official
1/TCP,UDP TCPMUX (TCP port service multiplexer) Official
5/TCP,UDP RJE (Remote Job Entry) Official
7/TCP,UDP ECHO protocol Official
9/TCP,UDP DISCARD protocol Official
11/TCP,UDP SYSTAT protocol Official
13/TCP,UDP DAYTIME protocol Official
17/TCP,UDP QOTD (Quote of the Day) protocol Official
18/TCP,UDP Message Send Protocol Official
19/TCP,UDP CHARGEN (Character Generator) protocol Official
20/TCP FTP - data port Official
21/TCP FTP - control (command) port Official
22/TCP,UDP SSH (Secure Shell) - used for secure logins, file transfers (scp, sftp) and port forwarding Official
23/TCP,UDP Telnet protocol - unencrypted text communications Official
25/TCP,UDP SMTP - used for e-mail routing between mailservers E-mails Official
26/TCP,UDP RSFTP - A simple FTP-like protocol Unofficial
35/TCP,UDP QMS Magicolor 2 printer Unofficial
37/TCP,UDP TIME protocol Official
39/TCP,UDP Resource Location Protocol Official
41/TCP,UDP Graphics Official
42/TCP,UDP Host Name Server Official
42/TCP,UDP WINS Unofficial
43/TCP WHOIS protocol Official
49/TCP,UDP TACACS Login Host protocol Official
53/TCP,UDP DNS (Domain Name System) Official
56/TCP,UDP Route Access Protocol Official
57/TCP MTP, Mail Transfer Protocol
67/UDP BOOTP (BootStrap Protocol) server; also used by DHCP (Dynamic Host Configuration Protocol) Official
68/UDP BOOTP client; also used by DHCP Official
69/UDP TFTP (Trivial File Transfer Protocol) Official
70/TCP Gopher protocol Official
79/TCP Finger protocol Official
80/TCP HTTP (HyperText Transfer Protocol) - used for transferring web pages Official
81/TCP HTTP Alternate (HyperText Transfer Protocol) Official
81/TCP Torpark - Onion routing ORport Unofficial
82/UDP Torpark - Control Port Unofficial
88/TCP Kerberos - authenticating agent Official
101/TCP HOSTNAME
102/TCP ISO-TSAP protocol
107/TCP Remote Telnet Service
109/TCP POP, Post Office Protocol, version 2
110/TCP POP3 (Post Office Protocol version 3) - used for retrieving E-mails Official
111/TCP,UDP sun protocol Official
113/TCP ident - old server identification system, still used by IRC servers to identify its users Official
115/TCP SFTP, Simple File Transfer Protocol
117/TCP UUCP-PATH
118/TCP,UDP SQL Services Official
119/TCP NNTP (Network News Transfer Protocol) - used for retrieving newsgroups messages Official
123/UDP NTP (Network Time Protocol) - used for time synchronization Official
135/TCP,UDP EPMAP (End Point Mapper) / Microsoft RPC Locator Service Official
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,UDP IMAP4 (Internet Message Access Protocol 4) - used for retrieving E-mails Official
152/TCP,UDP BFTP, Background File Transfer Program
153/TCP,UDP SGMP, Simple Gateway Monitoring Protocol
156/TCP,UDP SQL Service Official
158/TCP,UDP DMSP, Distributed Mail Service Protocol
161/TCP,UDP SNMP (Simple Network Management Protocol) Official
162/TCP,UDP SNMPTRAP Official
170/TCP Print-srv
179/TCP BGP (Border Gateway Protocol) Official
194/TCP IRC (Internet Relay Chat) Official
201/TCP,UDP AppleTalk Routing Maintenance
209/TCP,UDP The Quick Mail Transfer Protocol
213/TCP,UDP IPX Official
218/TCP,UDP MPP, Message Posting Protocol
220/TCP,UDP IMAP, Interactive Mail Access Protocol, version 3
259/TCP,UDP ESRO, Efficient Short Remote Operations
264/TCP,UDP BGMP, Border Gateway Multicast Protocol
311/TCP Apple Server-Admin-Tool, Workgroup-Manager-Tool
318/TCP,UDP TSP, Time Stamp Protocol
323/TCP,UDP IMMP, Internet Message Mapping Protocol
383/TCP,UDP HP OpenView HTTPs Operations Agent
366/TCP,UDP SMTP, Simple Mail Transfer Protocol. ODMR, On-Demand Mail Relay
369/TCP,UDP Rpc2portmap Official
371/TCP,UDP ClearCase albd Official
384/TCP,UDP A Remote Network Server System
387/TCP,UDP AURP, AppleTalk Update-based Routing Protocol
389/TCP,UDP LDAP (Lightweight Directory Access Protocol) Official
401/TCP,UDP UPS Uninterruptible Power Supply Official
411/TCP Direct Connect Hub port Unofficial
412/TCP Direct Connect Client-To-Client port Unofficial
427/TCP,UDP SLP (Service Location Protocol) Official
443/TCP HTTPS - HTTP Protocol over TLS/SSL (encrypted transmission) Official
444/TCP,UDP SNPP, Simple Network Paging Protocol
445/TCP Microsoft-DS (Active Directory, Windows shares, Sasser worm, Agobot, Zobotworm) Official
445/UDP Microsoft-DS SMB file sharing Official
464/TCP,UDP Kerberos Change/Set password Official
465/TCP Cisco protocol Official
465/TCP SMTP over SSL Unofficial
475/TCP tcpnethaspsrv (Hasp services, TCP/IP version) Official
500/TCP,UDP ISAKMP, IKE-Internet Key Exchange Official
502/TCP,UDP Modbus, Protocol
512/TCP exec, Remote Process Execution
512/UDP comsat, together with biff: notifies users of new c.q. yet unread e-mail
513/TCP Login
513/UDP Who
514/TCP rsh protocol - used to execute non-interactive commandline commands on a remote system and see the screen return
514/UDP syslog protocol - used for system logging Official
515/TCP Line Printer Daemon protocol - used in LPD printer servers
517/UDP Talk
518/UDP NTalk
520/TCP efs
520/UDP Routing - RIP Official
513/UDP Router
524/TCP,UDP NCP (NetWare Core Protocol) is used for a variety things such as access to primary NetWare server resources, Time Synchronization, etc. Official
525/UDP Timed, Timeserver
530/TCP,UDP RPC Official
531/TCP,UDP AOL Instant Messenger, IRC Unofficial
532/TCP netnews
533/UDP netwall, For Emergency Broadcasts
540/TCP UUCP (Unix-to-Unix Copy Protocol) Official
542/TCP,UDP commerce (Commerce Applications) Official
543/TCP klogin, Kerberos login
544/TCP kshell, Kerberos Remote shell
546/TCP,UDP DHCPv6 client
547/TCP,UDP DHCPv6 server
548/TCP AFP (Apple Filing Protocol)
550/UDP new-rwho, new-who
554/TCP,UDP RTSP (Real Time Streaming Protocol) Official
556/TCP Remotefs, rfs, rfs_server
560/UDP rmonitor, Remote Monitor
561/UDP monitor
563/TCP,UDP NNTP protocol over TLS/SSL (NNTPS) Official
587/TCP email message submission (SMTP) (RFC 2476) Official
591/TCP FileMaker 6.0 (and later) Web Sharing (HTTP Alternate, see port 80) Official
593/TCP,UDP HTTP RPC Ep Map (RPC over HTTP, often used by DCOM services and Microsoft Exchange Server) Official
604/TCP TUNNEL
631/TCP,UDP IPP, Internet Printing Protocol
636/TCP,UDP LDAP over SSL (encrypted transmission, also known as LDAPS) Official
639/TCP,UDP MSDP, Multicast Source Discovery Protocol
646/TCP LDP, Label Distribution Protocol
647/TCP DHCP Failover Protocol
648/TCP RRP, Registry Registrar Protocol
652/TCP DTCP, Dynamic Tunnel Configuration Protocol
654/TCP AODV, Ad hoc On-Demand Distance Vector
665/TCP sun-dr, Remote Dynamic Reconfiguration Unofficial
666/UDP Doom, First online first-person shooter
674/TCP ACAP, Application Configuration Access Protocol
691/TCP MS Exchange Routing Official
692/TCP Hyperwave-ISP
694/UDP Linux-HA High availability Heartbeat port Unofficial
695/TCP IEEE-MMS-SSL
698/TCP OLSR, Optimized Link State Routing
699/TCP Access Network
700/TCP EPP, Extensible Provisioning Protocol
701/TCP LMP, Link Management Protocol.
702/TCP IRIS over BEEP
706/TCP SILC, Secure Internet Live Conferencing
711/TCP TDP, Tag Distribution Protocol
712/TCP TBRPF, Topology Broadcast based on Reverse-Path Forwarding
720/TCP SMQP, Simple Message Queue Protocol
749/TCP, UDP kerberos-adm, Kerberos administration
750/UDP Kerberos version IV
782/TCP Conserver serial-console management server
829/TCP CMP (Certificate Management Protocol)
860/TCP iSCSI
873/TCP rsync File synchronisation protocol Official
901/TCP Samba Web Administration Tool (SWAT) Unofficial
902 VMware Server Console[1] Unofficial
904 VMware Server Alternate (if 902 is in use - ie SUSE linux) Unofficial
911/TCP Network Console on Acid (NCA) - local tty redirection over OpenSSH
981/TCP SofaWare Technologies Remote HTTPS management for firewall devices running embedded Checkpoint Firewall-1 software Unofficial
989/TCP,UDP FTP Protocol (data) over TLS/SSL Official
990/TCP,UDP FTP Protocol (control) over TLS/SSL Official
991/TCP,UDP NAS (Netnews Admin System)
992/TCP,UDP Telnet protocol over TLS/SSL Official
993/TCP IMAP4 over SSL (encrypted transmission) Official
995/TCP POP3 over SSL (encrypted transmission) Official
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