Remote access ports
12 remote access ports: what each one does, its protocol, and whether it is secure by default.
SubnetKit lists 12 remote access ports, using TCP, TCP/UDP, UDP. 12 of 12 are formally registered with IANA rather than just a widely followed convention.
2 of the 12 remote access ports are encrypted by default; the rest send data in clear text unless wrapped in TLS, SSH, or a VPN.
Click any port below for its full page: what it does, its protocol, and whether it is safe to expose.
| Port | Service | Protocol | What it does |
|---|---|---|---|
| 22 | SSH | TCP | Secure Shell / SFTP / SCP |
| 23 | Telnet | TCP | Telnet remote login |
| 512 | Rexec | TCP | Remote Process Execution |
| 513 | rlogin | TCP | Remote login |
| 1194 | OpenVPN | TCP/UDP | OpenVPN |
| 1701 | L2TP | UDP | Layer 2 Tunneling Protocol |
| 1723 | PPTP | TCP | Point-to-Point Tunneling Protocol |
| 3283 | Apple Remote Desktop | UDP | Apple Remote Desktop (Net Assistant) |
| 3389 | RDP | TCP | Remote Desktop Protocol |
| 5900 | VNC | TCP | Virtual Network Computing |
| 5985 | WinRM | TCP | Windows Remote Management (HTTP) |
| 5986 | WinRM HTTPS | TCP | Windows Remote Management (HTTPS) |
Frequently asked questions
Which ports are in the Remote access category?
port 22 (SSH), port 23 (Telnet), port 512 (Rexec), port 513 (rlogin), port 1194 (OpenVPN), port 1701 (L2TP), port 1723 (PPTP), port 3283 (Apple Remote Desktop), port 3389 (RDP), port 5900 (VNC), port 5985 (WinRM) and port 5986 (WinRM HTTPS).
How many remote access ports does SubnetKit list?
12, covering TCP, TCP/UDP, UDP. 12 of them are formally registered with IANA.
Are remote access ports secure by default?
2 out of 12 are encrypted by default. Check each port's page for its specific encryption status.
Which remote access port has the lowest number?
Port 22 (SSH). Port 22 is SSH, the encrypted way to open a remote shell, tunnel traffic, and run SFTP or SCP file transfers. It is the default for secure remote administration of Linux and network devices.