Using LDAPS with Freeradius

Arran Cudbard-Bell a.cudbardb at
Wed Jan 22 02:28:34 CET 2020

> On 21 Jan 2020, at 02:31, Peter Lambrechtsen <peter at> wrote:
> That is the only way it works. And if it's working and you should see an
> established tcp connection to the ldap server on port 636.
> If it wasn't encrypted it would be on port 389. So it's encrypted.

Just to add, the correct way of enabling LDAPS for the ldap module is to add the ldaps:// URI prefix to the server config item.  Just setting port 636 will result in the LDAP module failing to connect to the LDAP server.

You also do not need to specify the port explicitly if running on the default port, it's set automatically by the rlm_ldap code.


Arran Cudbard-Bell <a.cudbardb at>
FreeRADIUS Development Team

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