Port 119: NNTP
Port 119 is NNTP, the Network News Transfer Protocol used to post and read Usenet newsgroup articles. The encrypted version, NNTPS, uses port 563.
TCPLegacy protocolsUnencrypted by defaultIANA assigned
| Port number | 119 |
|---|---|
| Service | Network News Transfer Protocol |
| Protocol | TCP |
| Category | Legacy protocols |
| Default encryption | No |
Security note. Port 119 is not encrypted by default. Restrict it to trusted networks, or use an encrypted alternative where one exists, to avoid exposing credentials and data in transit.
Frequently asked questions
What is port 119 used for?
Port 119 is NNTP, the Network News Transfer Protocol used to post and read Usenet newsgroup articles. The encrypted version, NNTPS, uses port 563.
Is port 119 TCP or UDP?
Port 119 (NNTP) uses TCP.
Is port 119 secure?
Port 119 is not encrypted by default. Where possible, use an encrypted alternative or tunnel it over TLS or a VPN.
Should I open port 119 on my firewall?
Only if you specifically need NNTP. Expose it to the smallest set of trusted sources, and never open database or Windows-service ports to the whole internet.