Port adalah suatu celah atau pintu atau lubang pada system komputer sebagai jalur transfer data.
Pada system komputer sebenarnya ada dua jenis Port yaitu :
- Port fisik,adalah soket atau slot atau colokan yang ada di belakang CPU sebagai penghubung peralatan input-output komputer, misalnya Mouse,keyboard,printer…dll.
- Port Logika (non fisik),adalah port yang di gunakan oleh Software sebagai jalur untuk melakukan koneksi dengan komputer lain, tentunya termasuk koneksi internet.
Port Logika inilah yang akan kita bahas di sini, yaitu port yang berhubungan secara langsung dengan kegiatan kita ber-internet.
1. Port 80, Web Server
Port ini biasanya digunakan untuk web server, jadi ketika user mengetikan alamat IP atau hostname di web broeser maka web browser akan melihat IP tsb pada port 80,
2. Port 81, Web Server Alternatif
ketika port 80 diblok maka port 81 akan digunakan sebagai port altenatif hosting website
3. Port 21, FTP Server
Ketika seseorang mengakses FTP server, maka ftp client secara default akan melakukan koneksi melalui port 21 dengan ftp server
4. Port 22, SSH Secure Shell
Port ini digunakan untuk port SSH
5. Port 23, Telnet
Jika anda menjalankan server telnet maka port ini digunakan client telnet untuk hubungan dengan server telnet
6. Port 25, SMTP(Simple Mail Transport Protokol)
Ketika seseorang mengirim email ke server SMTP anda, maka port yg digunakan adalah port 25
7. Port 2525 SMTP Alternate Server
Port 2525 adalah port alternatifi aktif dari TZO untuk menservice forwarding email. Port ini bukan standard port, namun dapat diguunakan apabila port smtp terkena blok.
8. Port 110, POP Server
Jika anda menggunakan Mail server, user jika log ke dalam mesin tersebut via POP3 (Post Office Protokol) atau IMAP4 (Internet Message Access Protocol) untuk menerima emailnya, POP3 merupakan protokol untuk mengakses mail box
9. Port 119, News (NNTP) Server
10.Port 3389, Remote Desktop
Port ini adalah untuk remote desktop di WinXP
11. Port 389, LDAP Server
LDAP or Lightweight Directory Access Protocol is becoming popular for Directory access, or Name, Telephone, Address directories. For Example LDAP://LDAP.Bigfoot.Com is a LDAP directory server.
12. Port 143, IMAP4 Server
IMAP4 or Internet Message Access Protocol is becoming more popular and is used to retrieve Internet Mail from a remote server. It is more disk intensive, since all messages are stored on the server, but it allows for easy online, offline and disconnected use.
13. Port 443, Secure Sockets Layer (SSL) Server
When you run a secure server, SSL Clients wanting to connect to your Secure server will connect on port
14. 443. This port needs to be open to run your own Secure Transaction server.
Port 445, SMB over IP, File Sharing
Kelemahan windows yg membuka port ini. biasanya port ini digunakan sebagai port file sharing termasuk printer sharing, port inin mudah dimasukin virus atau worm dan sebangsanya
15. Ports 1503 and 1720 Microsoft NetMeeting and VOIP
MS NetMeeting and other VOIP allows you to host an Internet call or VideoConference with other 16. NetMeeting or VOIP users.
16. Port 5631, PCAnywhere
When a PCAnywhere server is set up to receive remote requests, it listens on TCP port 5631. This allow you to run a PCAnywhere host and use the Internet to connect back and remotely control your PC.
17. Port 5900, Virtual Network Computing (VNC)
When you run an VNC server to remotely control your PC, it uses port 5900. VNC is useful if you wish to remotely control your server.
18. Port 111, Portmap
19. Port 3306, Mysql
Berikut adalah tabel port jaringan:
| Port | Jenis Port | Keyword | Digunakan oleh |
| 0 | TCP, UDP | T/A. | Dicadangkan, tidak digunakan. |
| 1 | TCP, UDP | TCPmux | TCP Port Service Multiplexer |
| 2 | TCP, UDP | compressnet | Management Utility |
| 3 | TCP, UDP | compressnet | Compression Process |
| 4 | TCP, UDP | T/A | Belum ditetapkan |
| 5 | TCP, UDP | rje | Remote Job Entry |
| 6 | TCP, UDP | T/A | Belum ditetapkan |
| 7 | TCP, UDP | echo | Echo |
| 8 | TCP, UDP | T/A | Belum ditetapkan |
| 9 | TCP, UDP | discard | Discard;alias=sink null |
| 10 | TCP, UDP | T/A | Belum ditetapkan |
| 11 | TCP, UDP | systat | Active Users; alias = users |
| 12 | TCP, UDP | T/A | Belum ditetapkan |
| 13 | TCP, UDP | daytime | Daytime |
| 14 | TCP, UDP | T/A | Belum ditetapkan |
| 15 | TCP, UDP | T/A | Belum ditetapkan (sebelumnya: netstat) |
| 16 | TCP, UDP | T/A | Belum ditetapkan |
| 17 | TCP, UDP | qotd | Quote of the Day; alias = quote |
| 18 | TCP, UDP | msp | Message Send Protocol |
| 19 | TCP, UDP | chargen | Character Generator; alias = ttytst source |
| 20 | TCP, UDP | ftp-data | File Transfer Protocol (default data) |
| 21 | TCP, UDP | ftp | File Transfer Protocol (control), connection dialog |
| 22 | TCP, UDP | SSH | Putty |
| 23 | TCP, UDP | telnet | Telnet |
| 24 | TCP, UDP |
| Any private mail system |
| 25 | TCP, UDP | smtp | Simple Mail Transfer Protocol; alias = mail |
| 26 | TCP, UDP | T/A | Belum ditetapkan |
| 27 | TCP, UDP | nsw-fe | NSW User System FE |
| 28 | TCP, UDP | T/A | Belum ditetapkan |
| 29 | TCP, UDP | msg-icp | MSG ICP |
| 30 | TCP, UDP | T/A | Belum ditetapkan |
| 31 | TCP, UDP | msg-auth | MSG Authentication |
| 32 | TCP, UDP |
| Belum ditetapkan |
| 33 | TCP, UDP | dsp | Display Support Protocol |
| 34 | TCP, UDP | T/A | Belum ditetapkan |
| 35 | TCP, UDP |
| Any private printer server |
| 36 | TCP, UDP | T/A | Belum ditetapkan |
| 37 | TCP, UDP | time | Time; alias = timeserver |
| 38 | TCP, UDP | T/A | Belum ditetapkan |
| 39 | TCP, UDP | rlp | Resource Location Protocol; alias = resource |
| 40 | TCP, UDP | T/A | Belum ditetapkan |
| 41 | TCP, UDP | graphics | Graphics |
| 42 | TCP, UDP | nameserver | Host Name Server; alias = nameserver |
| 43 | TCP, UDP | nicname | Who Is; alias = nicname |
| 44 | TCP, UDP | mpm-flags | MPM FLAGS Protocol |
| 45 | TCP, UDP | mpm | Message Processing Module |
| 46 | TCP, UDP | mpm-snd | MPM (default send) |
| 47 | TCP, UDP | ni-ftp | NI FTP |
| 48 | TCP, UDP | T/A | Belum ditetapkan |
| 49 | TCP, UDP | login | Login Host Protocol |
| 50 | TCP, UDP | re-mail-ck | Remote Mail Checking Protocol |
| 51 | TCP, UDP | la-maint | IMP Logical Address Maintenance |
| 52 | TCP, UDP | xns-time | XNS Time Protocol |
| 53 | TCP, UDP | domain | Domain Name System Server |
| 54 | TCP, UDP | xns-ch | XNS Clearinghouse |
| 55 | TCP, UDP | isi-gl | ISI Graphics Language |
| 56 | TCP, UDP | xns-auth | XNS Authentication |
| 57 | TCP, UDP |
| Any private terminal access |
| 58 | TCP, UDP | xns-mail | XNS Mail |
| 59 | TCP, UDP |
| Any private file service |
| 60 | TCP, UDP | T/A | Belum ditetapkan |
| 61 | TCP, UDP | ni-mail | NI MAIL |
| 62 | TCP, UDP | acas | ACA Services |
| 63 | TCP, UDP | via-ftp | VIA Systems – FTP |
| 64 | TCP, UDP | covia | Communications Integrator (CI) |
| 65 | TCP, UDP | tacacs-ds | TACACS-Database Service |
| 66 | TCP, UDP | sql*net | Oracle SQL*NET |
| 67 | TCP, UDP | bootpc | DHCP/BOOTP Protocol Server |
| 68 | TCP, UDP | bootpc | DHCP/BOOTP Protocol Server |
| 69 | TCP, UDP | tftp | Trivial File Transfer Protocol |
| 70 | TCP, UDP | gopher | Gopher |
| 71 | TCP, UDP | netrjs-1 | Remote Job Service |
| 72 | TCP, UDP | netrjs-2 | Remote Job Service |
| 73 | TCP, UDP | netrjs-3 | Remote Job Service |
| 74 | TCP, UDP | netrjs-4 | Remote Job Service |
| 75 | UDP | T/A | Any private dial-out service |
| 76 | TCP, UDP | T/A | Belum ditetapkan |
| 77 | TCP, UDP |
| Any private RJE service |
| 78 | TCP, UDP | vetTCP | VetTCP |
| 79 | TCP, UDP | finger | Finger |
| 80 | TCP, UDP | www | World Wide Web HTTP |
| 81 | TCP, UDP | hosts2-ns | HOSTS2 Name Server |
| 82 | TCP, UDP | xfer | XFER Utility |
| 83 | TCP, UDP | mit-ml-dev | MIT ML Device |
| 84 | TCP, UDP | ctf | Common Trace Facility |
| 85 | TCP, UDP | mit-ml-dev | MIT ML Device |
| 86 | TCP, UDP | mfcobol | Micro Focus Cobol |
| 87 | TCP, UDP |
| Any private terminal link; alias = ttylink |
| 88 | TCP, UDP | kerberos | Kerberos |
| 89 | TCP, UDP | su-mit-tg | SU/MIT Telnet Gateway |
| 90 | TCP, UDP |
| DNSIX Security Attribute Token Map |
| 91 | TCP, UDP | mit-dov | MIT Dover Spooler |
| 92 | TCP, UDP | npp | Network Printing Protocol |
| 93 | TCP, UDP | dcp | Device Control Protocol |
| 94 | TCP, UDP | objcall | Tivoli Object Dispatcher |
| 95 | TCP, UDP | supdup | SUPDUP |
| 96 | TCP, UDP | dixie | DIXIE Protocol Specification |
| 97 | TCP, UDP | swift-rvf | Swift Remote Virtual File Protocol |
| 98 | TCP, UDP | tacnews | TAC News |
| 99 | TCP, UDP | metagram | Metagram Relay |
| 100 | TCP | newacct | (unauthorized use) |
| 101 | TCP, UDP | hostname | NIC Host Name Server; alias = hostname |
| 102 | TCP, UDP | iso-tsap | ISO-TSAP |
| 103 | TCP, UDP | gppitnp | Genesis Point-to-Point Trans Net; alias = webster |
| 104 | TCP, UDP | acr-nema | ACR-NEMA Digital Imag. & Comm. 300 |
| 105 | TCP, UDP | csnet-ns | Mailbox Name Nameserver |
| 106 | TCP, UDP | 3com-tsmux | 3COM-TSMUX |
| 107 | TCP, UDP | rtelnet | Remote Telnet Service |
| 108 | TCP, UDP | snagas | SNA Gateway Access Server |
| 109 | TCP, UDP | pop2 | Post Office Protocol version 2 (POP2); alias = postoffice |
| 110 | TCP, UDP | pop3 | Post Office Protocol version 3 (POP3); alias = postoffice |
| 111 | TCP, UDP | sunrpc | SUN Remote Procedure Call |
| 112 | TCP, UDP | mcidas | McIDAS Data Transmission Protocol |
| 113 | TCP, UDP | auth | Authentication Service; alias = authentication |
| 114 | TCP, UDP | audionews | Audio News Multicast |
| 115 | TCP, UDP | sftp | Simple File Transfer Protocol |
| 116 | TCP, UDP | ansanotify | ANSA REX Notify |
| 117 | TCP, UDP | uucp-path | UUCP Path Service |
| 118 | TCP, UDP | sqlserv | SQL Services |
| 119 | TCP, UDP | nntp | Network News Transfer Protocol (NNTP); alias = usenet |
| 120 | TCP, UDP | cfdptkt | CFDPTKT |
| 121 | TCP, UDP | erpc | Encore Expedited Remote Procedure Call |
| 122 | TCP, UDP | smakynet | SMAKYNET |
| 123 | TCP, UDP | ntp | Network Time Protocol; alias = ntpd ntp |
| 124 | TCP, UDP | ansatrader | ANSA REX Trader |
| 125 | TCP, UDP | locus-map | Locus PC-Interface Net Map Server |
| 126 | TCP, UDP | unitary | Unisys Unitary Login |
| 127 | TCP, UDP | locus-con | Locus PC-Interface Connection Server |
| 128 | TCP, UDP | gss-xlicen | GSS X License Verification |
| 129 | TCP, UDP | pwdgen | Password Generator Protocol |
| 130 | TCP, UDP | cisco-fna | Cisco FNATIVE |
| 131 | TCP, UDP | cisco-tna | Cisco TNATIVE |
| 132 | TCP, UDP | cisco-sys | Cisco SYSMAINT |
| 133 | TCP, UDP | statsrv | Statistics Service |
| 134 | TCP, UDP | ingres-net | INGRES-NET Service |
| 135 | TCP, UDP | loc-srv | Location Service |
| 136 | TCP, UDP | profile | PROFILE Naming System |
| 137 | TCP, UDP | netbios-ns | NetBIOS Name Service |
| 138 | TCP, UDP | netbios-dgm | NetBIOS Datagram Service |
| 139 | TCP, UDP | netbios-ssn | NetBIOS Session Service |
| 140 | TCP, UDP | emfis-data | EMFIS Data Service |
| 141 | TCP, UDP | emfis-cntl | EMFIS Control Service |
| 142 | TCP, UDP | bl-idm | Britton-Lee IDM |
| 143 | TCP, UDP | imap2 | Interim Mail Access Protocol v2 |
| 144 | TCP, UDP | news | NewS; alias = news |
| 145 | TCP, UDP | uaac | UAAC Protocol |
| 146 | TCP, UDP | iso-ip0 | ISO-IP0 |
| 147 | TCP, UDP | iso-ip | ISO-IP |
| 148 | TCP, UDP | cronus | CRONUS-SUPPORT |
| 149 | TCP, UDP | aed-512 | AED 512 Emulation Service |
| 150 | TCP, UDP | sql-net | SQL-NET |
| 151 | TCP, UDP | hems | HEMS |
| 152 | TCP, UDP | bftp | Background File Transfer Program |
| 153 | TCP, UDP | sgmp | SGMP; alias = sgmp |
| 154 | TCP, UDP | netsc-prod | Netscape |
| 155 | TCP, UDP | netsc-dev | Netscape |
| 156 | TCP, UDP | sqlsrv | SQL Service |
| 157 | TCP, UDP | knet-cmp | KNET/VM Command/Message Protocol |
| 158 | TCP, UDP | pcmail-srv | PCMail Server; alias = repository |
| 159 | TCP, UDP | nss-routing | NSS-Routing |
| 160 | TCP, UDP | sgmp-traps | SGMP-TRAPS |
| 161 | TCP, UDP | snmp | Simple Network Management Protocol |
| 162 | TCP, UDP | snmptrap | SNMP TRAP |
| 163 | TCP, UDP | cmip-man | CMIP/TCP Manager |
| 164 | TCP, UDP | cmip-agent | CMIP/TCP Agent |
| 165 | TCP, UDP | xns-courier | Xerox |
| 166 | TCP, UDP | s-net | Sirius Systems |
| 167 | TCP, UDP | namp | NAMP |
| 168 | TCP, UDP | rsvd | RSVD |
| 169 | TCP, UDP | send | SEND |
| 170 | TCP, UDP | print-srv | Network PostScript |
| 171 | TCP, UDP | multiplex | Network Innovations Multiplex |
| 172 | TCP, UDP | cl/1 | Network Innovations CL/1 |
| 173 | TCP, UDP | xyplex-mux | Xyplex |
| 174 | TCP, UDP | mailq | MAILQ |
| 175 | TCP, UDP | vmnet | VMNET |
| 176 | TCP, UDP | genrad-mux | GENRAD-MUX |
| 177 | TCP, UDP | xdmcp | X Display Manager Control Protocol |
| 178 | TCP, UDP | nextstep | NextStep Window Server |
| 179 | TCP, UDP | bgp | Border Gateway Protocol (BGP) |
| 180 | TCP, UDP | ris | Intergraph |
| 181 | TCP, UDP | unify | Unify |
| 182 | TCP, UDP | audit | Unisys Audit SITP |
| 183 | TCP, UDP | ocbinder | OCBinder |
| 184 | TCP, UDP | ocserver | OCServer |
| 185 | TCP, UDP | remote-kis | Remote-KIS |
| 186 | TCP, UDP | kis | KIS Protocol |
| 187 | TCP, UDP | aci | Application Communication Interface |
| 188 | TCP, UDP | mumps | Plus Five’s MUMPS |
| 189 | TCP, UDP | qft | Queued File Transport |
| 190 | TCP, UDP | gacp | Gateway Access Control Protocol |
| 191 | TCP, UDP | prospero | Prospero |
| 192 | TCP, UDP | osu-nms | OSU Network Monitoring System |
| 193 | TCP, UDP | srmp | Spider Remote Monitoring Protocol |
| 194 | TCP, UDP | irc | Internet Relay Chat (IRC) Protocol |
| 195 | TCP, UDP | dn6-nlm-aud | DNSIX Network Level Module Audit |
| 196 | TCP, UDP | dn6-smmred | DNSIX Session Management Module Audit Redirector |
| 197 | TCP, UDP | dls | Directory Location Service |
| 198 | TCP, UDP | dls-mon | Directory Location Service Monitor |
| 199 | TCP, UDP | smux | SMUX |
| 200 | TCP, UDP | src | IBM System Resource Controller |
| 201 | TCP, UDP | at-rtmp | AppleTalk Routing Maintenance |
| 202 | TCP, UDP | at-nbp | AppleTalk Name Binding |
| 203 | TCP, UDP | at-3 | AppleTalk Unused |
| 204 | TCP, UDP | at-echo | AppleTalk Echo |
| 205 | TCP, UDP | at-5 | AppleTalk Unused |
| 206 | TCP, UDP | at-zis | AppleTalk Zone Information |
| 207 | TCP, UDP | at-7 | AppleTalk Unused |
| 208 | TCP, UDP | at-8 | AppleTalk Unused |
| 209 | TCP, UDP | tam | Trivial Authenticated Mail Protocol |
| 210 | TCP, UDP | z39.50 | ANSI Z39.50 |
| 211 | TCP, UDP | 914c/g | Texas Instruments 914C/G Terminal |
| 212 | TCP, UDP | anet | ATEXSSTR |
| 213 | TCP, UDP | ipx | Internetwork Packet Exchange (IPX) |
| 214 | TCP, UDP | vmpwscs | VM PWSCS |
| 215 | TCP, UDP | softpc | Insignia Solutions |
| 216 | TCP, UDP | atls | Access Technology License Server |
| 217 | TCP, UDP | dbase | dBASE UNIX |
| 218 | TCP, UDP | mpp | Netix Message Posting Protocol |
| 219 | TCP, UDP | uarps | Unisys ARPs |
| 220 | TCP, UDP | imap3 | Interactive Mail Access Protocol versi 3 |
| 221 | TCP, UDP | fln-spx | Berkeley rlogind with SPX authentication |
| 222 | TCP, UDP | fsh-spx | Berkeley rshd with SPX authentication |
| 223 | TCP, UDP | cdc | Certificate Distribution Center |
| 224–241 | T/A | T/A | Tidak digunakan; dicadangkan |
| 242 | TCP, UDP | direct | Direct |
| 243 | TCP, UDP | sur-meas | Survey Measurement |
| 245 | TCP, UDP | link | LINK |
| 246 | TCP, UDP | dsp3270 | Display Systems Protocol |
| 247 | TCP, UDP | subntbcst_tftp | SUBNTBCST_TFTP |
| 248 | TCP, UDP | bhfhs | bhfhs |
| 249–255 | T/A | T/A | Tidak digunakan; dicadangkan |
| 345 | TCP, UDP | pawserv | Perf Analysis Workbench |
| 346 | TCP, UDP | zserv | Zebra server |
| 347 | TCP, UDP | fatserv | Fatmen Server |
| 371 | TCP, UDP | clearcase | Clearcase |
| 372 | TCP, UDP | ulistserv | UNIX Listserv |
| 373 | TCP, UDP | legent-1 | Legent Corporation |
| 374 | TCP, UDP | legent-2 | Legent Corporation |
Source:http://theflydown.blogspot.com/2009/07/jenis-jenis-port-dan-fungsinya.html
http://id.wikipedia.org/wiki/Port_TCP_dan_UDP
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