UDP 49
UDP port 49 protocol information and warnings.
Looking for information on Protocol UDP 49? This page will attempt to provide you with as much port information as possible on UDP Port 49.
UDP Port 49 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 49
Here is what we know about protocol UDP Port 49. If we do not have any information on port 49 in our database, a counter will be set for UDP port 49. After enough hits, we'll research this port and update the database.
If you have information on UDP port 49 that is not reflected in our database, please leave a comment or post your information on our Web Security Forum. We'll update our database so that the next user searching for port 49 will have the most accurate information.
PORT 49 - Information
| Port Number: | 49 |
| TCP / UDP: | UDP |
| Delivery: | No |
| Protocol / Name: | tacacs |
| Port Description: | Login Host Protocol (TACACS). Auth protocol for older terminal server logins. Security Concerns: Passwords are transmitted in cleartext. Previously known as bbn-login. Disable this port on all hosts. |
| Virus / Trojan: | No |
Side note: UDP port 49 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 49 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 49, UDP Port 49 is connectionless and does not guarantee reliable communication; it's up to the application that received the message on Port 49 to process any errors and verify correct delivery.
UDP 49 - Disclaimer
We do our best to provide you with accurate information on PORT 49 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!