LDAP not working

After adding the LdapAuthorizer.php and configuring properly the config.php the ldap connection continues not working.

[2019-09-02 14:10:25] production.ERROR: Auth Error (ldap): No user (-1)

The librenms website is reachable, but the ldap connection is being a problem. Any idea about this? I am starting to loose the patience. For me seems all ok, but something may be missing.

What is in your config? Without it it’s going to be quite hard to troubleshoot anything. Or you can start tcpdumping the traffic and looking at it.

Hi Elias,

I have followed the standard configuration that was working few days ago:

Standard config

$config['auth_mechanism'] = 'ldap';
$config['auth_ldap_server'] = 'ldap.example.com';               // Set server(s), space separated. Prefix with ldaps:// for ssl
$config['auth_ldap_suffix'] = ',ou=People,dc=example,dc=com';   // appended to usernames
$config['auth_ldap_groupbase'] = 'ou=groups,dc=example,dc=com'; // all groups must be inside this
$config['auth_ldap_groups']['admin']['level'] = 10;             // set admin group to admin level
$config['auth_ldap_groups']['pfy']['level'] = 5;                // set pfy group to global read only level
$config['auth_ldap_groups']['support']['level'] = 1;            // set support group as a normal user

Also I used the /opt/librenms/Authentication/LdapAuthorizer.php standard one

(This second part not 100% sure if needed)

Any further details that may be needed? It is strange. All this happened after fixing my db syncronizing it with librenms.

Also not very sure if the LdapAuthorizer.php to use is the generic shown in the link above or may require some customization… ; /


I am using ldap auth with active directory backend and never changed or had to place any extra file, just used the standard source code. If you look here: https://docs.librenms.org/Extensions/Authentication/#ldap-authentication there is also no mention of having to do anything with the LdapAuthorizer.php file so not sure where that comes from.

But I have indeed an active directory config so it’s not directly comparable.

Thank you very much Elias, the issue has been resolved. It took me a while to see which ones where the new ldap files.

Good to hear, glad that it’s resolved :slight_smile: