Quali sono le porte standard?

I protocolli TCP e UDP si appoggiano all’accoppiata IP di destinazione e porta (ossia al socket) per l’invio dei dati attraverso la rete. Delle tantissime porte disponibili, alcune sono dette porte note: ecco, quindi, quali sono le porte standard.

Le porte sono suddivise in tre grandi gruppi: le known ports, che vanno da 0 a 1023, le porte registrate, che sono comprese nell’intervallo 1024 – 49151, e le porte private (o dinamiche), da 49152 a 65535.

Le known ports sono registrate dalla IANA (Internet Assigned Numbers Authority), un organismo che si occupa di assegnare gli indirizzi IP. Proprio per questo motivo, quindi, possiamo sapere con certezza a cos’è assegnata ogni porta nel primo blocco. Ecco, quindi, l’elenco delle porte well-known.

Le well-known ports (da 0 a 1023)

<td>
  <strong>Protocollo</strong>
</td>

<td>
  <strong>Descrizione</strong>
</td>
<td>
  tcp
</td>

<td>
  TCP Multiplexor
</td>
<td>
  tcp
</td>

<td>
  Compressnet Management Utility
</td>
<td>
  tcp
</td>

<td>
  Compressnet Compression Process
</td>
<td>
  udp
</td>

<td>
  Echo Protocol
</td>
<td>
  udp
</td>

<td>
  Bif Protocol
</td>
<td>
  udp
</td>

<td>
  Discard Protocol
</td>
<td>
  tcp
</td>

<td>
  Daytime Protocol
</td>
<td>
  tcp
</td>

<td>
  Quote of the Day
</td>
<td>
  udp
</td>

<td>
  Chargen Protocol
</td>
<td>
  tcp
</td>

<td>
  FTP
</td>
<td>
  tcp
</td>

<td>
  FTP
</td>
<td>
  tcp
</td>

<td>
  <a href="https://www.marcogarosi.it/sistemi-operativi/centos/come-abilitare-ssh-su-centos/">SSH</a>
</td>
<td>
  tcp
</td>

<td>
  Telnet Insecure Text Communications
</td>
<td>
  tcp
</td>

<td>
  SMTP
</td>
<td>
  udp
</td>

<td>
  <a href="https://www.marcogarosi.it/cose/cose-un-dns/">DNS</a>
</td>
<td>
  udp
</td>

<td>
  BOOTP / DHCP (server)
</td>
<td>
  udp
</td>

<td>
  BOOTP / DHCP (client)
</td>
<td>
  udp
</td>

<td>
  TFTP
</td>
<td>
  tcp
</td>

<td>
  Gopher
</td>
<td>
  tcp
</td>

<td>
  Finger
</td>
<td>
  tcp
</td>

<td>
  HTTP
</td>
<td>
  tcp
</td>

<td>
  Kerberos Authenticating Agent
</td>
<td>
  tcp
</td>

<td>
  DICOM
</td>
<td>
  tcp
</td>

<td>
  POP3
</td>
<td>
  tcp
</td>

<td>
  ident
</td>
<td>
  tcp
</td>

<td>
  NNTP
</td>
<td>
  udp
</td>

<td>
  NTP
</td>
<td>
  udp
</td>

<td>
  NetBIOS Name Service
</td>
<td>
  udp
</td>

<td>
  NetBIOS Datagram Service
</td>
<td>
  tcp
</td>

<td>
  NetBIOS Session Service
</td>
<td>
  tcp
</td>

<td>
  IMAP4
</td>
<td>
  udp
</td>

<td>
  SNMP
</td>
<td>
  udp
</td>

<td>
  SNMP
</td>
<td>
  tcp
</td>

<td>
  LDAP
</td>
<td>
  tcp
</td>

<td>
  Direct Connect
</td>
<td>
  tcp
</td>

<td>
  HTTPS
</td>
<td>
  tcp
</td>

<td>
  Microsoft-DS
</td>
<td>
  udp
</td>

<td>
  Microsoft-DS SMB
</td>
<td>
  tcp
</td>

<td>
  SMTP su SSL
</td>
<td>
  tcp
</td>

<td>
  Modbus
</td>
<td>
  udp
</td>

<td>
  SysLog
</td>
<td>
  udp
</td>

<td>
  RTSP
</td>
<td>
  tcp
</td>

<td>
  NNTP su SSL
</td>
<td>
  tcp
</td>

<td>
  SMTP
</td>
<td>
  tcp
</td>

<td>
  FileMaker 6.0 Web Sharing
</td>
<td>
  udp
</td>

<td>
  IPP / CUPS (Common Unix Printing Syste)
</td>
<td>
  tcp
</td>

<td>
  LDAP su SSL
</td>
<td>
  tcp
</td>

<td>
  Doom
</td>
<td>
  tcp
</td>

<td>
  IMAP4 su SSL
</td>
<td>
  tcp
</td>

<td>
  POP3 su SSL
</td>
Porta
1
2
3
7
8
9
13
17
19
20
21
22
23
25
53
67
68
69
70
79
80
88
104
110
113
119
123
137
138
139
143
161
162
389
411
443
445
445
465
502
514
554
563
587
591
631
636
666
993
995

Le porte registrate (da 1024 a 49151)

<td>
  <strong>Protocollo</strong>
</td>

<td>
  <strong>Descrizione</strong>
</td>
<td>
  tcp
</td>

<td>
  SOCKS Proxy
</td>
<td>
  udp
</td>

<td>
  OpenVPN
</td>
<td>
  tcp
</td>

<td>
  Microsoft SQL Server
</td>
<td>
  tcp
</td>

<td>
  Microsoft SQL Monitor
</td>
<td>
  udp
</td>

<td>
  Microsoft SQL Monitor
</td>
<td>
  tcp
</td>

<td>
  Big Brother
</td>
<td>
  udp
</td>

<td>
  Network File System
</td>
<td>
  tcp
</td>

<td>
  rtcm-sc104
</td>
<td>
  udp
</td>

<td>
  rtcm-sc104
</td>
<td>
  both
</td>

<td>
  DICOM ISCL (Integrated Secure Communication Layer)
</td>
<td>
  both
</td>

<td>
  DICOM TLS
</td>
<td>
  tcp
</td>

<td>
  Firebird Database system
</td>
<td>
  tcp
</td>

<td>
  HTTP
</td>
<td>
  tcp
</td>

<td>
  MySQL
</td>
<td>
  tcp
</td>

<td>
  Desktop Remoto di Windows / Microsoft Terminal Server&nbsp;&nbsp;(RDP)
</td>
<td>
  tcp
</td>

<td>
  Voispeed
</td>
<td>
  tcp
</td>

<td>
  Voispeed
</td>
<td>
  tcp
</td>

<td>
  Subversion
</td>
<td>
  udp
</td>

<td>
  Subversion
</td>
<td>
  tcp
</td>

<td>
  eMule (fino alla versione 0.47)
</td>
<td>
  udp
</td>

<td>
  eMule (fino alla versione 0.47)
</td>
<td>
  tcp
</td>

<td>
  eMule Web Server
</td>
<td>
  tcp
</td>

<td>
  Radmin Connessione Remota
</td>
<td>
  tcp
</td>

<td>
  Sybase database server
</td>
<td>
  tcp
</td>

<td>
  SIP
</td>
<td>
  udp
</td>

<td>
  SIP
</td>
<td>
  tcp
</td>

<td>
  EPCglobal Low-Level Reader Protocol (LLRP)
</td>
<td>
  udp
</td>

<td>
  EPCglobal Low-Level Reader Protocol (LLRP)
</td>
<td>
  tcp
</td>

<td>
  EPCglobal Low-Level Reader Protocol (LLRP) [criptato]
</td>
<td>
  udp
</td>

<td>
  EPCglobal Low-Level Reader Protocol (LLRP) [criptato]
</td>
<td>
  tcp
</td>

<td>
  AOL e AOL Instant Messenger
</td>
<td>
  tcp
</td>

<td>
  XMPP Client Connection
</td>
<td>
  tcp
</td>

<td>
  XMPP Server Connection
</td>
<td>
  tcp
</td>

<td>
  PostgreSQL Database system
</td>
<td>
  tcp
</td>

<td>
  Symantec PcAnywhere
</td>
<td>
  udp
</td>

<td>
  Symantec PcAnywhere
</td>
<td>
  tcp
</td>

<td>
  Ultra VNC (HTTP)
</td>
<td>
  tcp
</td>

<td>
  Ultra VNC (main)
</td>
<td>
  tcp
</td>

<td>
  X11
</td>
<td>
  tcp
</td>

<td>
  SANE
</td>
<td>
  tcp
</td>

<td>
  IRC (Internet Relay Chat)
</td>
<td>
  tcp
</td>

<td>
  iRDMI
</td>
<td>
  tcp
</td>

<td>
  HTTP Alternate (HTTP-ALT) / WWW caching service (cache Web)
</td>
<td>
  tcp
</td>

<td>
  privoxy http filtering proxy service
</td>
<td>
  tcp
</td>

<td>
  TVersity Media Server
</td>
<td>
  udp
</td>

<td>
  TVersity Media Server
</td>
Porta
1080
1194
1433
1434
1434
1984
2049
2101
2101
2761
2762
3050
3128
3306
3389
3541
3542
3690
3690
4662
4672
4711
4899
5000
5060
5060
5084
5084
5085
5085
5190
5222
5269
5432
5631
5632
5800
5900
6000
6566
6667
8000
8080
8118
41951
41951

Queste sono le principali porti TCP/UDP usate quotidianamente da milioni di persone con i più disparati servizi. E tu, quali usi?