Active Directory Domain Controller (DC) is accepting connections on port 636

To check if an Active Directory Domain Controller (DC) is accepting connections on port 636, which is the default port for LDAP over SSL (LDAPS), you can use various methods depending on your operating system and network environment. Here’s how you can do it on different platforms:

1. You can do it using PowerShell:

Test-NetConnection -ComputerName <DomainControllerName> -Port 636

2.Using LDAP Tools: You can use

, a Lightweight Directory Access Protocol (LDAP) client included in Windows Server.

• Open ldp.exe.
• Go to Connection > Connect.
• Enter the Domain Controller’s name.
• Enter 636 as the port.
• Click OK.

This will open a connection to the Active Directory domain controller on LDAPS using TCP port 636.