On-Premises Active Directory

Perimeter 81 integrates with Active Directory/LDAP through the Active Directory/LDAP Connector that you install on your network.

The AD/LDAP Connector (1), is a bridge between your Active Directory (2) and the Perimeter 81 Service (3). This bridge is necessary because AD is typically restricted to your internal network, and Perimeter 81 is a cloud service running in a completely different context.

For high availability and load balancing, you can install multiple instances of the connector. All connections are out-bound from the connector to Perimeter 81, so changes to your firewall are generally unnecessary.

Configuring an AD/LDAP connection in Perimeter 81 requires two steps:

  • Enable an AD/LDAP Connection in Perimeter 81 management console and download the installer.
  • Install the connector on your network. 

Enable an AD/LDAP Connection in Perimeter 81

1. Log in to your Perimeter 81 management dashboard, and navigate to Settings and then Identity Providers.


2. Select + Add Provider.

3. Choose Active Directory / LDAP and select Continue.


4. In the List of domain names field, list the user email domains that will be allowed to log in to this AD/LDAP connection. For example perimeter81.com.

If you are not sure what is your domain name, you can find it under Active Directory Users and Computers.


If this is different than the email domain (name@mycompanyname.com), please add any email Domains or aliases here so the system will be able to register those specific email addresses with SSO Sign in.

5. Select Done
6. Download the Install Windows Agent on the next page to your machine. 

Make sure to keep the TICKET URL on hand as you will need it later. 

Install the connector on your network

The Connector is packaged as a standard Microsoft Installer file (MSI).

Run the installer

1. You will need to install the connector on the same machine that the Active Directory is running.
Run the installer and follow the instructions:

The AD/LDAP Connector in Windows is installed as a Windows Service:

Link to Perimeter 81

Once the installation is complete, you will see the following screen in a browser pointing to localhost:

1. Enter the TICKET URL provided when you provisioned the connection in the initial step above.

The TICKET URL uniquely identifies this connector in Perimeter 81. The Connector will use this to communicate with our service and automatically complete the configuration.

Note: If you receive an "unable to get local issuer certificate" error, you need to set an environment variable NODE_TLS_REJECT_UNAUTHORIZED with value 0 in your windows/linux system, and then restart the two Auth0 services (further instructions here).

Link to LDAP

1. Once you have entered the TICKET URL, you need to enter the LDAP settings:

  • LDAP Connection String (eg: ldap://ldap.internal.acme.com): This is the protocol + the domain name or IP address of your LDAP server. Your LDAP server is the local domain controller where Active Directory is installed. The protocol can be either LDAP or LDAPS. If you need to use LDAPS make sure that the certificate is valid in the current server (auto-populate).
  • Base DN (eg: dc=acme,dc=com): This is the base container for all the queries performed by the connector (auto-populate).
  • Username (eg: cn=svcauth0,dc=services,dc=acme,dc=com): The full name of a user with administrator rights to perform queries.
  • Password: The password of that user.
  • No need to fill in any of the other fields.

Once you submit the above information, the connector will perform a series of tests:

Make sure that all tests are in green.

2. Apply custom configuration to the connector config file.

The config.json file is the AD/LDAP Connector's main configuration file. The file is located in the install directory for the AD/LDAP Connector, which (for Windows) is usually found at C:\Program Files (x86)\Auth0\AD LDAP Connector.

3. Add the following row into the json file (can be opened in any text editor) right after the second row:

"LDAP_USER_BY_NAME": "(mail={0})",

4. Save the config.json file.

5. Note: The integration will not be successful unless all users have their email addresses filled in.

6. Restart the AD/LDAP Connector service (the Auth0 ADLDAP and Auth0 ADLDAP Admin services in Windows).

Congratulations, your AD/LDAP is installed, connected and ready to use within Perimeter 81.

Access Error troubleshooting

If your users are getting access error after the configuration, please check these steps.

1 out of 1 found this helpful


  • I don't see the entry: "LDAP_USER_BY_NAME": "(cn={0})", on config.json.

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  • If you don't have the DAP_USER_BY_NAME , Please add as follows on your config
    "key1": "value1",
    "key2": "value2",
    "LDAP_USER_BY_NAME": "(mail={0})"


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