Network ports

Assessing the network infrastructure for the identification of critical vulnerabilities 

has always been a challenging and time-consuming process. Thus, we have fine-
tuned a small list of known network ports with their respective services in order to 

help penetration testers to quickly map through potential vulnerable services (TCP/

UDP ports 1 to 65,535) using Kali Linux tools.

To get a complete and a more up-to-date list of all network ports, visit 

http://www.iana.org/assignments/port-numbers. 

However, bear in mind that sometimes the applications and services are configured 

to run on different ports than the default ones, shown as follows:

Service Port Protocol

Echo 7 TCP/UDP

Character Generator (CHARGEN) 19 TCP/UDP

FTP data transfer 20 TCP

FTP control 21 TCP

SSH 22 TCP

Telnet 23 TCP

SMTP 25 TCP

WHOIS 43 TCP

TACACS 49 TCP/UDP

DNS 53 TCP/UDP

Bootstrap Protocol (BOOTP) server 67 UDP

Bootstrap Protocol (BOOTP) client 68 UDP

TFTP 69 UDP

HTTP 80 TCP

Kerberos 88 TCP

POP3 110 TCP

Sun RPC 111 TCP/UDP

NTP 123 UDP

Service Port Protocol

NetBIOS (Name service) 137 TCP/UDP

NetBIOS (Datagram service) 138 TCP/UDP

NetBIOS (Session service) 139 TCP/UDP

IMAP 143 TCP

SNMP 161 UDP

SNMPTRAP 162 TCP/UDP

BGP 179 TCP/UDP

IRC 194 TCP/UDP

BGMP 264 TCP/UDP

LDAP 389 TCP/UDP

HTTPS 443 TCP

Microsoft DS 445 TCP/UDP

ISAKMP 500 TCP/UDP

rexec 512 TCP

rlogin 513 TCP

Who 513 UDP

rsh 514 TCP

Syslog 514 UDP

Talk 517 TCP/UDP

RIP/RIPv2 520 UDP

Timed 525 UDP

klogin 543 TCP

Mac OS X Server administration 660 TCP/

Spamassassin 783 TCP

rsync 873 TCP

IMAPS 993 TCP

POP3S 995 TCP

SOCKS 1080 TCP

Nessus 1241 TCP

IBM Lotus Notes 1352 TCP

Timbuktu-srv1 1417 to 1420 TCP/UDP

MS SQL 1433 TCP

Citrix 1494 TCP

Oracle default listener 1521 TCP

Ingres 1524 TCP/UDP

Key Resources

Service Port Protocol

Oracle common alternative for listener 1526 TCP

PPTP 1723 TCP/UDP

radius 1812 TCP/UDP

Cisco SCCP 2000 TCP/UDP

NFS 2049 TCP

Openview Network Node Manager 

daemon 2447 TCP/UDP

Microsoft Global Catalog 3268 TCP/UDP

MySQL 3306 TCP

Microsoft Terminal Service 3389 TCP

NFS-lockd 4045 TCP

SIP 5060 TCP/UDP

Multicast DNS 5353 UDP

PostgreSQL 5432 TCP

PCAnywhere 5631 TCP

VNC 5900 TCP

X11 6000 TCP

ArcServe 6050 TCP

BackupExec 6101 TCP

Gnutella 6346 TCP/UDP

Gnutella alternate 6347 TCP/UDP

IRC 6665 to 6670 TCP

Web 8080 TCP

Privoxy 8118 TCP

Polipo 8123 TCP

Cisco-xremote 9001 TCP

Jetdirect 9100 TCP

Netbus 12345 TCP

Quake 27960 UDP

Back Orifice 31337 UDP

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