Searching Using Controls

LDAP controls extend the functionality of LDAP commands, such as ldapsearch, to carry out additional operations on top of the search. Each control is defined as an object identifier (OID) that uniquely identifies the control, a criticality flag, and any associated values. If the client sets the criticality flag when sending the control to the directory server, the directory server must either perform the operation with the control or not process it. If the flag is not set by the client, the directory server is free to ignore the control if it cannot process it.

You can use multiple controls in a single operation, such as the virtual list view with server-side sorting.

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