Common Ports List – Most Commonly Used Port Numbers

List of Commonly Used Ports

Below is a list of common ports and the service it is associated with I find are most commonly used. If you feel there are ports that should be on this list, please leave a comment or contact me.

Updated 17 May 2012 to include ports recommended by DHost

Port Description TCP UDP
20 FTP – data port (File Transfer Protocol)  
21 FTP – command port (File Transfer Protocol)  
22 SSH (Secure Shell)  
23 Telnet  
25 SMTP – Sending Mail (Simple Mail Transfer Protocol)  
43 WHOIS – Domain Name Lookup  
53 DNS (Domain Name System)
67 DHCP – Server (Dynamic Host Configuration Protocol)  
68 DHCP – Client (Dynamic Host Configuration Protocol)  
80 HTTP – Webservers such as Apache2 and IIS – more info on accessing websites on alternate ports
110 POP3 – Receiving emails (Post Office Protocol, version 3)  
123 NTP (Network Time Protocol)  
143 IMAP – Receiving emails (Internet Message Access Protocol)
443 SSL – Webserver with encryption (Secure Socket Layer)
Plesk Control Panel also uses this port
1433 MSSQL – Database (Microsoft SQL Server)
2082 cPanel  
2083 cPanel over SSL  
2095 cPanel Webmail  
2096 cPanel Webmail over SSL  
3128 Squid Proxy – Default Squid Proxy Port. Port 8080 is another common port for squid.  
3306 MySQL – Database
8080 HTTP Port (Alternate port generally used when port 80 is already in use – more info)  
8443 Plesk Control Panel  

 

Accessing a website on a different port

When you access websites, you are, by default, accessing them on the port 80 since this is the default web port used by websites. This means that http://www.darian-brown.com/ is the exact same as http://www.darian-brown.com:80/ (where :80 specifies the port number). However if the website server is using another port such as a more commonly used alternate port 8080, then you will need to specify the non-default port in the following format: http://www.example.com:8080/ where www.example.com is the website domain or IP address and 8080 is the port number the website is running on.

3 Responses to Common Ports List – Most Commonly Used Port Numbers

  1. avatar Cankat says:

    Thanx, this is great.

  2. avatar DHost says:

    You can also Add on
    cPanel —- 2082
    Plesk Control Panel – SSL—- 8443
    Webmail —- 2095

    Thanks

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