UDP 389

Looking for information on Protocol UDP 389? This page will attempt to provide you with as much port information as possible on UDP Port 389.

UDP Port 389 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 389

Here is what we know about protocol UDP Port 389. If you have information on UDP port 389 that is not reflected on this page, simply leave a comment and we’ll update our information.

PORT 389 – Information

• Port Number: 389
• TCP / UDP: UDP
• Delivery: No
• Protocol / Name: ldap
• Port Description: Lightweight Directory Access Protocol. LDAP server’s port, an adaptation of x.500 dir std. Through it, LDAP clients access central dir to retrieve, add, and modify info. Examples: Database for PKI systems. – Address book for mail & personnel progs. – Internet Directory Service that tracks users of collaborative apps (chat, video, audio, etc). Would track who is on-line, their IP, and data about user. Used by Win2000 Active Directory. SSL version at TCP 636. Security Concerns: Valuable source of user info used in attacks; excellent target for DOS attack.
• Virus / Trojan: No

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

Side note: UDP port 389 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 389 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 389, UDP Port 389 is connectionless and does not guarantee reliable communication; it’s up to the application that received the message on Port 389 to process any errors and verify correct delivery.

Because protocol UDP port 389 was flagged as a virus (colored red) does not mean that a virus is using port 389, but that a Trojan or Virus has used this port in the past to communicate.

UDP 389 – Disclaimer

We do our best to provide you with accurate information on PORT 389 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!