Default Port Numbers in TCP/IP

Whenever we use TCP/IP connection, we always require default port numbers. Now the question is:

What are default port numbers ?

It is a well known service, used to identify the sender and receiver messages such as NFS Server, Web Server, Mail Server, FTP Server, etc. These servers are using default port numbers.

The range of port numbers is from to 65535.

Some default port numbers are as follows:
PORT NAME Description
22 SSH Secure shell
20 FTP DATA File Transfer Protocol - Transferring FTP data
21 FTP Control Starting FTP Connection
23 Telnet For remote administration
25 SMTP Send mail Transfer protocol
53 DNS Domain name system
67 Bootp Bootstrap protocol (DHCP - Client to Server Communication)
68 DHCP Dynamic Host Configuration Protocol ( Server to client Communication )
80 HTTP/WWW Hyper Text Transfer Protocol - APACHE
110 POP3 Post Office Protocol - Mail Delivery Agent
123 NTP Network Time Protocol -
139 SMB SAMBA Server - ( smbd )
143 IMAP Internet Message Access Protocol
161 SNMP Simple Network Management Protocol - network Monitoring
389 LDAP Lightweight Directory Access Protocol
443 HTTPS HTTP + SSL - Secure web access
990 FTPS FTP Secure
2049 NFS Network File System
3306 MYSQL Mysql Database
Ebook Download
View all
Learn
View all