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Port Computers are Important and Frequently used | As a web developer you may often faced with the problem of the port number on the server computer, the need to install what is needed by a website in order to run properly on the server computer would be disturbed if some ports needed is closed by the holders of its servers (Administrator) for various reasons , which most often is due to security reasons.
Not infrequently, so that the port can be used, there must be permission from the administrator, such as when you want to perform remote desktop to the server, it will not be when the Remote Desktop port (3389) is closed. So usually they will ask, what ports to be opened, or it could be unit specific part of the request for your use.
Here are some common ports that are frequently used by a variety of popular applications that need for us to know, including those often required by a web developer.
| Application | Port | Protocol | Information |
|---|---|---|---|
| HTTP | 80, 8080 | TCP | Hyptertext Transfer Protocol. Used by web browsers such as Internet Explorer, Firefox and Opera. |
| HTTPS | 443 | TCP, UDP | Used for more secure web browser |
| IMAP | 143 | TCP | Email application, including Outlook, Outlook Express, Eudora and Thunderbird. |
| FTP | 20 to 21 | TCP | File Transfer Protocol. |
| SSH | 22 | TCP | Secure Shell protocol. Providing a secure session when signing in to the remote machine. |
| Telnet | 23 | TCP | Used for remote server administration. |
| DNS | 53 | TCP, UDP | Domain Name System protocol to convert domain names into IP addresses. |
| NNTP | 119 | TCP | Network News Transfer Protocol, is used to internet discussion groups |
| NETBIOS | 137 to 139 | TCP, UDP | NETBIOS, is used for file transfers between a Windows machine. |
| SNMP | 161 to 162 | UDP | Simple Network Management Protocol. Used by network administrators to remotely statistics and information gathering. |
| LDAP | 389 | TCP, UDP | Lightweight Directory Services Protocol, used to access a centralized database of users and computers. |
| Microsoft SQL Server | 1433 to 1434 | TCP, UDP | Application Database. |
| MySQL | 3306 | TCP, UDP | Application Database. |
| Oracle SQL | 1521, 1522, 1525, 1529 | TCP | Application Database. |
| Microsoft Terminal Server / Citrix ICA | 1494, 1604 | UDP | Remote Desktop application. |
| ICQ | 4000 | UDP | Instant messenger. |
| IRC | 194 | TCP | Internet Relay Chat (IRC) |
| Yahoo Messenger | 5010 | TCP | Instant messenger. |
| AOL Instant Messenger | 5190 | TCP, UDP | Instant messenger. |
| PCAnywhere | 5632 | TCP, UDP | Remote Desktop application. |
| VNC | 5800, 5900 | TCP | Virtual Network Computer, enabling remote desktop functionality. |
| Kerberos | 88 | TCP, UDP | Used for user authentication, usually in the Windows system users. |
| POP3 | 110 | TCP | Post Office Protocol. To receive email. |
| SMTP | 25 | TCP | Simple Mail Transfer Protocol, is used to send the email. |
| RIP | 520 | UDP | Routing Information Protocol, a core part of the Internet infrastructure. |
| Microsoft PPTP | 1723 | TCP | Point-to-Point Tunneling Protocol, implementation of Virtual Private Number. |
| Windows Media Streaming | 1755, 7007 | TCP, UDP | |
| Age of Empires | 2300 to 2400, 6073, 47624 | TCP, UDP | Multiplayer games. |
| Call of Duty | 20500, 20510, 28960 | TCP, UDP | Multiplayer games. |
| Counter-Strike | 1200, 27000 to 27015, 27020 to 27039 | TCP, UDP | Multiplayer games. |
| Doom 3 | 27650, 27666 | TCP, UDP | Multiplayer games. |
| Everquest | 1024, 6000, 7000 | TCP, UDP | Multiplayer games. |
| Far Cry | 49001 to 49002, 49124 | TCP, UDP | Multiplayer games. |
| FIFA | 3658, 10400 to 10499 | TCP, UDP | Multiplayer games. |
| Microsoft Flight Simulator | 2300 to 2400, 6073, 23456, 47624 | TCP, UDP | Multiplayer games. |
| Gamespy Arcade | 3783, 6515, 6500, 6667, 13139, 27900, 28900, 29900, 29901 | TCP, UDP | Game browser. |
| Gnutella | 6346 | TCP, UDP | P2P file sharing application |
| GTA2 | 2300 to 2400, 47624 | TCP, UDP | Multiplayer games. |
| Half Life 2 | 1200, 27000 to 27015, 27020 to 27039 | TCP, UDP | Multiplayer games. |
| iTunes | 3689 | TCP, UDP | Application Sharing Music. |
| MSN Messenger | 1863, 5190, 6891 to 6901 | TCP, UDP | Instant messenger. |
| NBA Live | 3658, 9570, 18699 to 28600 | UDP | Multiplayer games. |
| Need For Speed | 80, 1030, 3658, 3659, 9442, 13505, 18210, 18215, 30900 to 30999 | TCP, UDP | Multiplayer games. |
| Net2Phone | 6801 | UDP | VoIP applications. |
| NetFone | 10200 | TCP | VoIP applications. |
| Neverwinter Nights | 5120 to 5300, 6500, 6667, 27900, 28900 | UDP | Multiplayer games. |
| NHL | 3658, 10300, 13505 | TCP, UDP | Multiplayer games. |
| No One Lives Forever | 2300 to 2400, 7000 to 10000, 27888 | TCP, UDP | Multiplayer games. |
| PhoneFree | 1034 to 1035, 2644, 8000, 9900 to 9901 | TCP, UDP | VoIP applications. |
| Quake | 27650, 27910, 27950, 27952, 27960, 27965 | TCP, UDP | Multiplayer games. |
| Quicktime | 6970 to 7000 | TCP, UDP | Streaming video applications. |
| Rainbow Six | 80, 2346 to 2348, 6667, 7777 to 7787, 8777 to 8787, 40000 to 42999, 44000, 45000 | TCP, UDP | Multiplayer games. |
| RealVNC | 5900 | TCP, UDP | Remote desktop applications. |
| TeamViewer | 80, 443, 5938 | TCP, UDP | Remote desktop applications. |
| Remote Desktop | 3389 | TCP, UDP | Generic remote desktop protocol. |
| Shiva VPN | 2233 | TCP, UDP | Tunneling Applications. |
| Soldier of Fortune | 28910 to 28915, 20100 to 20112 | TCP, UDP | Multiplayer games. |
| Speak Freely | 2074 to 2076 | UDP | VoIP applications. |
| Starcraft | 6112 | TCP, UDP | Multiplayer games. |
| TeamSpeak | 8767, 14534, 51234 | TCP, UDP | Online voice chat. |
| Tiger Woods PGA Tour | 80, 443, 9570, 13505, 20803, 20809, 32768 to 65535 | TCP, UDP | Multiplayer games. |
| Tight VNC | 5800, 5500, 5900 | TCP | Remote desktop applications. |
| Tribes | 28000, 28001 | TCP, UDP | Multiplayer games. |
| Ultima Online | 5001 to 5010, 7775 to 7777, 7875, 8800 to 8900, 9999 | TCP | Multiplayer games. |
| Unreal Tournament | 7777 to 7788, 8080, 8777, 9777, 27900, 42292 | TCP, UDP | Multiplayer games. |
| Vonage | 5061, 10000 to 20000 | UDP | Aplikasi VoIP. |
| VPhone | 11675 | TCP, UDP | Aplikasi VoIP. |
| Warcraft | 6112 to 6119 | TCP, UDP | Game Multiplayer. |
| WebcamXP | 8080, 8090 | TCP | Aplikasi video sharing. |
| Winamp Streaming | 8000 to 8001 | TCP | Aplikasi audio streaming. |
| Wingate VPN | 809 | TCP, UDP | Aplikasi Tunneling. |
| World of Warcraft | 3724, 6112, 6881 to 6999 | TCP | Game Multiplayer. |
| Worms Armageddon | 80, 6667, 17010 to 17012 | TCP | Game Multiplayer. |
| XBox | 80, 1900, 3390, 3074, 3776, 3932, 5555, 7777 | TCP, UDP | Game appliance. |
| Azureus | 6881 to 6889 | TCP, UDP | P2P file sharing application. |
| DC++ | 411, 1025 to 32000 | TCP, UDP | P2P file sharing application. |
| Limewire | 6346 to 6347 | TCP, UDP | P2P file sharing application. |
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