I’m using 3.2.0 which has the check_ldap plugin installed by default in my libexec folder and I can run it fine from a command line, but when trying to add it to command.cfg I can’t get it to acknowledge that it exists.
At least the command is defined in the wrong way.
Have a look at the default commands to see how a service check is defind calling a command and passing ARGUMENTS to the command which in turn transforms the arguments into parameters for the effective command.