NewLdap creates a new instance of Ldap addr: LDAP server address (IP ":" PortNumber) sf: User account suffix bDN: baseDN.

NewLdapWithAcc creates a *Ldap instance with a dedicated account for making queries.

CN is the cn key in an LDAP record.

DistinguishedName is the name of the distinguishedName field.

MemberOf is the memberOf key in an LDAP record.

SAMAccountName field name.

Ldap is the object that handles the connection to an LDAP server.