HP-UX Directory Server Administrator Guide HP-UX Directory Server Version 8.1 (5900-3098, May 2013)

The number of hops allowed is defined using the nsHopLimit attribute. If not specified, the default
value is 10.
To use the control, add the following OID to the nsTransmittedControl attribute in the
cn=config,cn=chaining database,cn=plugins,cn=config entry:
nsTransmittedControl: 1.3.6.1.4.1.1466.29539.12
If the control is not present in the configuration file of each database link, loop detection will not
be implemented.
2.4.8.5 Summary of cascading chaining configuration attributes
The following table describes the attributes used to configure intermediate database links in a
cascading chain:
Table 8 Cascading chaining configuration attributes
DescriptionAttribute
URL of the server containing the next database link in the cascading chain.nsFarmServerURL
Enter the following OIDs to the database links involved in the cascading chain:
nsTransmittedControls:
2.16.840.1.113730.3.4.12
nsTransmittedControls
nsTransmittedControls:
1.3.6.1.4.1.1466.29539.12
The first OID corresponds to the Proxy Authorization Control. The second OID
corresponds to the Loop Detection Control.
This attribute must contain the following ACI:
aci: (targetattr = "*")(version 3.0; acl "Proxied
authorization for database links";
aci
allow (proxy) userdn =
"ldap:///cn=proxy ad\
min,cn=config";)
To enable evaluation of local ACIs on all database links involved in chaining, turn local
ACI evaluation on, as follows:
nsCheckLocalACI: on
nsCheckLocalACI
2.4.8.6 Cascading chaining configuration example
To create a cascading chain involving three servers as in the diagram below, the chaining
components must be configured on all three servers.
82 Configuring Directory Databases