Port 119
nntp · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | nntp |
| Reference | RFC 3977 |
| Modified | 2018-07-06 |
Frequently asked questions
What is port 119 used for?
Port 119 is registered with the IANA for nntp (TCP/UDP). Description: Network News Transfer Protocol.
Is port 119 a well-known port?
Yes. Port 119 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 119 is open?
Locally on Linux with ss -tulpn | grep ':119\b', on Windows with netstat -ano | findstr :119. To test a remote host use Test-NetConnection <host> -Port 119 in PowerShell or nc -zv <host> 119 on Linux/macOS.
How do I open port 119 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 119/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=119/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 119" -Direction Inbound -Protocol TCP -LocalPort 119 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | nntp | Network News Transfer Protocol |
| UDP | nntp | Network News Transfer Protocol |