How to troubleshoot and test an LDAP connection with JExplorer

If you are trying to set up an LDAP connection and are not sure if it’s the application that is failing or if it’s your domain controller. Here is a quick test that you can run to see if the LDAP connection is working properly. JExplorer requires Java in order to work, here are the download links.

Download JExplorer (jxplorer-3.3.02-windows-installer.exe)
Download Java (jre-7u51-windows-x64.exe)

Here is a quick example how to connect to your domain controller with LDAP
Ports used by ldap:
ldap://dc.mylab.local:389    <–Searches Domain
ldap://dc.mylab.local:3268  <–Searches Global Catalog Server
 
Check your Policies
If you can’t connect with ldp.exe by using regular ldap you might have a policy set on your Domain Controller to specifically use LDAPS only. Double check the below and these options should allow you to use regular ldap.

Local Security Policy
Security Settings > Local Policies > Security Options > Domain Controller: LDAP server signing requirements set to none

Group Policy Management Editor
Computer Configuration > Policies > Windows Settings > Security Settings > Local Policies > Security Options > Domain controller: LDAP server signing requirements set to Not Defined.
 
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