UDP 19

Looking for information on Protocol UDP 19? This page will attempt to provide you with as much port information as possible on UDP Port 19.

UDP Port 19 may use a defined protocol to communicate depending on the application. A protocol is a set of formalized rules that explains how data is communicated over a network. Think of it as the language spoken between computers to help them communicate more efficiently.

Protocol HTTP for example defines the format for communication between internet browsers and web sites. Another example is the IMAP protocol that defines the communication between IMAP email servers and clients or finally, the SSL protocol which states the format to use for encrypted communications.

UDP Port 19

Here is what we know about protocol UDP Port 19. If you have information on UDP port 19 that is not reflected on this page, simply leave a comment and we’ll update our information.

PORT 19 – Information

• Port Number: 19
• TCP / UDP: UDP
• Delivery: No
• Protocol / Name: chargen
• Port Description: Character Generator. Used to trouble-shoot TCP/IP stacks. Generates random characters at a high rate. DOS Threat: Attackers will loop it to the echo port, creating a very effective host and subnet DOS. Disable this port on all hosts, enable only for brief trouble-shooting tests
• Virus / Trojan: No

  Tip! Use our free Digital Footprint and Firewall Test to help verify you are not infected.

Side note: UDP port 19 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 19 makes possible the transmission of a datagram message from one computer to an application running in another computer. Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) but unlike TCP on Port 19, UDP Port 19 is connectionless and does not guarantee reliable communication; it’s up to the application that received the message on Port 19 to process any errors and verify correct delivery.

Because protocol UDP port 19 was flagged as a virus (colored red) does not mean that a virus is using port 19, but that a Trojan or Virus has used this port in the past to communicate.

UDP 19 – Disclaimer

We do our best to provide you with accurate information on PORT 19 and work hard to keep our database up to date. This is a free service and accuracy is not guaranteed. We do our best to correct any errors and welcome feedback!