Commonly!
The ports used to run various services (for example, web, email ) on the same IP. A Port can be any number from 0 to 65535.
The service name was assigned on a first-come,first-served process
and it is always in (three ranges)
| System Port | (0-1023) |
|---|---|
| User Port | (1024-49151) |
| Dynamic/Private Port | (4159-655235) |
However, In with the growth of windows and single-user Linux systems; The ports model no longer works.
The most common service names and there ports no. are mentioned below:
| Service Name | Ports |
|---|---|
| FTP(File Transfer Protocol) | 20,21 |
| SSH(Secure Shell) | 22 |
| Telnet(Telephone Network) | 23 |
| SMTP(Simple Mail Transfer Protocol) | 25 |
| DNS(Domain Name System) | 53 |
| DHCP(Dynamic Host Configuration Protocol) | 67,68 |
| TFTP(Trivial File Transfer Protocol) | 69 |
| HTTP(Hyper-Text Transfer Protocol) | 80 |
| POP(Post OProtocol)ffice | 110 |
| NNTP(Network News Transfer Protocol) | 119 |
| NTP(Network Time Protocol) | 123 |
| LDAP(Lightweight Directory Access Protocol) | 389 |
| HTTPS(Hypertext Transfer Protocol Secure) | 443 |
| IMAPS(Internet Mail Acess Protocol Secure) | 993 |
| RADIUS(Remote Authentication Dial-In User Service) | 1812 |
| C-panel(web hosting control panel) | 2082 |
| WHM(Web Host Manager) | 2086 |
| WHM-SSL(Web Host Manager) | 2087 |
| Webmail (web-based email accounts) | 2095 |
| SSLWebmail- (web-based email accounts) | 2096 |
| Plesk over HTTPS(Hypertext Transfer Protocol Secure) | 8443 |
| Plesk over HTTP(Hypertext Transfer Protocol) | 8880 |
| AIM(AIM) | 5190 |