Here is a LDAP Query Example to view the Available Controls on a particular LDAP Server:
$ ldapsearch -h localhost -p 1389 -b "" --searchScope base "(objectclass=*)" supportedControl dn: supportedControl: 1.2.826.0.1.3344810.2.3 supportedControl: 1.2.840.113556.1.4.319 supportedControl: 1.2.840.113556.1.4.473 supportedControl: 1.2.840.113556.1.4.805 supportedControl: 1.3.6.1.1.12 supportedControl: 1.3.6.1.1.13.1 supportedControl: 1.3.6.1.1.13.2 supportedControl: 1.3.6.1.4.1.26027.1.5.2 supportedControl: 1.3.6.1.4.1.42.2.27.8.5.1 supportedControl: 1.3.6.1.4.1.42.2.27.9.5.2 supportedControl: 1.3.6.1.4.1.42.2.27.9.5.8 supportedControl: 1.3.6.1.4.1.4203.1.10.2 supportedControl: 1.3.6.1.4.1.7628.5.101.1 supportedControl: 2.16.840.1.113730.3.4.12 supportedControl: 2.16.840.1.113730.3.4.16 supportedControl: 2.16.840.1.113730.3.4.17 supportedControl: 2.16.840.1.113730.3.4.18 supportedControl: 2.16.840.1.113730.3.4.19 supportedControl: 2.16.840.1.113730.3.4.2 supportedControl: 2.16.840.1.113730.3.4.3 supportedControl: 2.16.840.1.113730.3.4.9!! More Information There might be more information for this subject on one of the following: