LDAP uses port 389 for encrypted traffic.
port 389
An LDAP (Lightweight Directory Access Protocol) port is simply an application for distributing, accessing, and maintaining information through an IP (Internet Protocol).
TCP port 389 is commonly used for Lightweight Directory Access Protocol (LDAP)
port 636
The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.The default port number depends on the protocol. If a URL starts, for example, with "http://", then the default port number will be 80. For other protocols, other default port numbers are used.
TCP has no default port. Individual applications - such as FTP, DNS, or Telnet - do have default ports.
Implicit FTPS runs on port 990 by default.
The client IP address, the clients host name, the port address to use during communication
A Microsoft Active Directory (AD) Server can only answer directly queries about objects which are in its domain. When using LDAP, you may want to get information about objects in other domains or subdomains within the organization. Most AD servers, therefore, cache information from other AD servers using a facility called the Global Catalog. To query the Global Catalog on an AD server which is also a Global Catalog Server (GCS) you must connect to the GCS port, 3268 instead of to the default LDAP port.
Default port -- 3306
Port 25