Friday 21 June 2013

PortNumbers


Port Number is considered as an communication endpoint in a system. Ports uniquely identify different applications. It is a 16-bit unsigned integer, ranging from 1 to 65535.

Some of them are listed here:


Netstat  15

FTP      21

SSH      22

Telnet   23

SMTP     25

Time     37

RAP      38

WINS     42

DNS      53

Bootp    67

DHCP     68

TFTP     69

FINGER   79

HTTP     80

Kerberos 88

HOSTNAME 101

POP2     109

POP3     110

NNTP     119

NTP      123

Net BIOS 139

IMAP4    143

RPC      135

SNMP     161

BGP      179

RIS      180

LDAP     389

SQL Server    1433

NFS           2049

IMAP3    220

LDAP (Lightweight Directory Access Protocol)    389

HTTPS (HTTP over SSL/TLS)    443

Terminal services            3389










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