Is port 119 (NNTP) dangerous?

Port 119 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 119 be open on my firewall?

Port 119 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 119 use?

Port 119 (NNTP) uses the TCP transport protocol and falls under the Messaging category.

:119 (TCP)

NNTP

Medium Risk

TCP — Messaging

Port Overview

Port Number 119

Service Name NNTP

Transport Protocol TCP

Category Messaging

Security Risk Medium

Port Range Well-Known (0-1023)

What is Port 119?

NNTP (Network News Transfer Protocol), defined in RFC 977 and updated in RFC 3977, is the protocol used to read and post articles to Usenet newsgroups. While Usenet still exists, NNTP usage has dramatically declined.

TCP Messaging

Security Considerations

Port 119 (NNTP) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.

Recommendation: Keep the service updated. Monitor logs for unusual activity.

Related Ports — Messaging

18 MSP 87 ttylink / link 98 TACNews 99 Metagram 169 SEND 194 IRC 218 MPP 267 TD-Service

Related Terms

ARP FTP HTTP ICMP IMAP NTP