What ports are open on my Linux Dedicated Server as default?
This answer will list the default ports which are open for your Linux Dedicated Server.
The following ports are open on Linux Dedicated Servers only:
- port 21 (ftp)
- port 53 (domain)
- port 80 (http)
- port 110 (pop3)
- port 23 (telnet)
The following is a full list of standard ports to use for common server processes and services:
| Port | Process/Service |
| 21 | FTP |
| 22 | SSH |
| 23 | Telnet |
| 25 | SMTP |
| 53 | DNS |
| 80 | HTTP |
| 110 | POP |
| 119 | NNTP |
| 143 | IMAP |
| 443 | HTTPS |
| 465 | Secure SMTP |
| 585 | Secure IMAP |
| 587 | SMTP alternate - Use if port 25 is blocked by the ISP |
| 993 | IMAP4 over SSL |
| 995 | Secure POP3 |
| 1433 | MSSQL |
| 2082 | cPanel TCP inbound |
| 2083 | cPanel SSL TCP inbound |
| 2086 | WHM TCP inbound |
| 2087 | WHM SSL TCP inbound |
| 2089 | cPanel license TCP outbound |
| 2095 | Webmail TCP inbound |
| 2096 | Webmail SSL TCP inbound |
| 3306 | MySQL |
| 3389 | RDC - default Remote Desktop |
| 5224 | Plesk license |
| 8080 | HTTP - alternate port (also a Tomcat port) |
| 8425 | Horde |
| 8443 | Plesk |
| 9876 | SCP License |
| 9999 | SCP |