Port 1723
pptp · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | pptp |
| Reference | RFC 2637 |
| Modified | 2021-09-21 |
Frequently asked questions
What is port 1723 used for?
Port 1723 is registered with the IANA for pptp (TCP/UDP). Description: pptp.
Is port 1723 a well-known port?
No. Port 1723 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 1723 is open?
Locally on Linux with ss -tulpn | grep ':1723\b', on Windows with netstat -ano | findstr :1723. To test a remote host use Test-NetConnection <host> -Port 1723 in PowerShell or nc -zv <host> 1723 on Linux/macOS.
How do I open port 1723 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 1723/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=1723/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 1723" -Direction Inbound -Protocol TCP -LocalPort 1723 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | pptp | pptp |
| UDP | pptp | pptp |