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Contents of README:Relay backend sets up a relay virtual database that allows to access other databases in the same instance of slapd through different naming contexts and remapping attribute values. The DN rewrite, filter rewrite and attributeType/objectClass mapping is done by means of the rewrite-remap overlay. The database containing the real naming context can be explicitly selected by means of the "relay" directive, which must contain the naming context of the target database. This also causes the rewrite-remap overlay to be automatically instantiated. If the optional keyword "massage" is present, the rewrite-remap overlay is automatically configured to map the virtual to the real naming context and vice-versa. Otherwise, the rewrite-remap overlay must be explicitly instantiated, by using the "overlay" directive, as illustrated below. This allows much more freedom in target database selection and DN rewriting. If the "relay" directive is not present, the backend is not bound to a single target database; on the contrary, the target database is selected on a per-operation basis. This allows, for instance, to relay one database for authentication and anotheir for search/modify, or allows to use one target for persons and another for groups and so on. To summarize: the "relay" directive: - explicitly bounds the database to a single database holding the real naming context; - automatically instantiates the rewrite-remap overlay; - automatically configures the naming context massaging if the optional "massage" keyword is added If the "relay" directive is not used, the rewrite-remap overlay must be explicitly instantiated and the massaging must be configured, either by using the "suffixmassage" directive, or by issuing more sophisticate rewrite instructions. AttributeType/objectClass mapping must be explicitly required. Note that the rewrite-remap overlay is not complete nor production- ready yet. Examples are given of all the suggested usages. # automatically massage from virtual to real naming context database relay suffix "dc=virtual,dc=naming,dc=context" relay "dc=real,dc=naming,dc=context" massage # explicitly massage (same as above) database relay suffix "dc=virtual,dc=naming,dc=context" relay "dc=real,dc=naming,dc=context" suffixmassage "dc=virtual,dc=naming,dc=context" \ "dc=real,dc=naming,dc=context" # explicitly massage (same as above, but dynamic backend resolution) database relay suffix "dc=virtual,dc=naming,dc=context" overlay rewrite-remap suffixmassage "dc=virtual,dc=naming,dc=context" \ "dc=real,dc=naming,dc=context" # old fashioned suffixalias, applied also to DN-valued attributes # from virtual to real naming context, but not the reverse... database relay suffix "dc=virtual,dc=naming,dc=context" relay "dc=real,dc=naming,dc=context" rewriteContext default rewriteRule "(.*)dc=virtual,dc=naming,dc=context$" \ "$1dc=real,dc=naming,dc=context" rewriteContext searchFilter rewriteContext searchResult rewriteContext searchResultAttrDN rewriteContext matchedDN |
Name Last modified Size
Parent Directory -
CVS/ 17-Dec-2022 22:27 -
Makefile.in 15-Aug-2021 05:01 1.1K
README 17-Mar-2004 22:37 3.0K
back-relay.h 15-Aug-2021 05:01 1.4K
init.c 15-Aug-2021 05:01 6.0K
op.c 15-Aug-2021 05:01 10K
proto-back-relay.h 15-Aug-2021 05:01 1.7K
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