RabbitMQ LDAP authentication failing

Question

I'm going through the process of setting up RabbitMQ with LDAP authorization but am not having much luck... Could someone in the know, please take a look and tell me what I'm doing wrong? I'm able to query LDAP to get the user object with the following code: ``` var entry = new DirectoryEntry("LDAP://ourldapbox.ourcompany.co.uk:636/CN=Mark Twain,OU=Development,OU=OurCompany Employees,DC=OurCompany,DC=co,DC=uk"); ``` Config Attempt 1 ``` [ {rabbit, [{auth_backends, [rabbit_auth_backend_ldap, rabbit_auth_backend_internal]}]}, {rabbitmq_auth_backend_ldap, [ {servers, ["ourldapbox.ourcompany.co.uk"]}, {user_dn_pattern, "CN=${username},OU=Development,OU=OurCompany Employees,DC=OurCompany,DC=co,DC=uk"}, {use_ssl, false}, {port, 636}, {log, true} ] } ]. ``` Config Attempt 2 ``` [ {rabbit, [{auth_backends, [rabbit_auth_backend_ldap, rabbit_auth_backend_internal]}]}, {rabbitmq_auth_backend_ldap, [ {servers, ["ourldapbox.ourcompany.co.uk"]}, {dn_lookup_attribute, "sAMAccountName"}, {dn_lookup_b…

Accepted Answer

Solved! I realised that the combination of `use_ssl=false` and `port=636` was a bit stupid because 636 is the encrypted (i.e. SSL LDAP) port.

Here's my LDAP configuration (now working). I hope this saves a few people a few hours:

```
[
  {rabbit,
   [ {auth_backends, [rabbit_auth_backend_ldap, rabbit_auth_backend_internal]}]},
  {rabbitmq_auth_backend_ldap,
   [ {servers,               ["ourldapbox.ourcompany.co.uk"]},
     {dn_lookup_attribute,   "sAMAccountName"},
     {dn_lookup_base,        "DC=ourcompany,DC=co,DC=uk"},
     {user_dn_pattern,       "${username}@ourcompany.co.uk"},
     {use_ssl,               true},
     {port,                  636},
     {log,                   true}
   ]
  }
].
```

RabbitMQ LDAP authentication failing

Solution

Problem