UDP 23
UDP port 23 protocol information and warnings.
Looking for information on Protocol UDP 23? This page will attempt to provide you with as much port information as possible on UDP Port 23.
UDP Port 23 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 23
Here is what we know about protocol UDP Port 23. If we do not have any information on port 23 in our database, a counter will be set for UDP port 23. After enough hits, we'll research this port and update the database.
If you have information on UDP port 23 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 23 will have the most accurate information.
PORT 23 - Information
| Port Number: | 23 |
| TCP / UDP: | UDP |
| Delivery: | No |
| Protocol / Name: | telnet udp |
| Port Description: | Telnet. Standard for remote host admin. Security Concerns of Telnet: Cleartext, re-usable passwords. - Portal for user account grinding. CERT Advisories: CA-89.03, CA-95.14. Replace with SSH on critical hosts. |
| Virus / Trojan: | No |
Side note: UDP port 23 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 23 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 23, UDP Port 23 is connectionless and does not guarantee reliable communication; it's up to the application that received the message on Port 23 to process any errors and verify correct delivery.
UDP 23 - Disclaimer
We do our best to provide you with accurate information on PORT 23 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!