Port 119 — NNTP

TCP · Port 119/TCP is used for the Network News Transfer Protocol (NNTP), a standard protocol for transferring and retrieving Usenet news articles. NNTP allows users to access and share news articles across different networks, making it an important service for online communities.

Port Number: 119
Service Name: NNTP
Protocol: TCP
Common Software: INN, Leafnode

Security Notes

Review IANA registry for port 119 usage. Apply principle of least privilege - only open ports that are required.

FAQ

What is port 119 used for?

Port 119 is used for NNTP. Port 119/TCP is used for the Network News Transfer Protocol (NNTP), a standard protocol for transferring and retrieving Usenet news articles. NNTP allows users to access and share news articles across different networks, making it an important service for online communities. Common software: INN, Leafnode.

Is port 119 dangerous to leave open?

Review IANA registry for port 119 usage. Apply principle of least privilege - only open ports that are required.

How do I check if port 119 is open?

Use nmap: nmap -p 119 <target> or check locally: ss -tlnp | rg 119