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Sun OpenDS Standard Edition 2.0 Architectural Reference

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Document Information

The Directory Server Access Control Model

Access Control Principles

Access Control Overview

ACI Structure

Directory Server Global ACIs

ACI Evaluation

ACI Limitations

Access Control and Replication

See Also

ACI Syntax

ACI Syntax Overview

Defining Targets

Targeting a Directory Entry

To Target Attributes

To Target an Entry and Attributes

To Target Entries or Attributes Using LDAP Filters

To Target Attribute Values Using LDAP Filters

To Target a Single Directory Entry

To Specify the Scope of an ACI

To Target LDAP Controls

To Target LDAP Extended Operations

Defining Permissions

To Allow or Deny Access

To Assign Rights

Rights Required for LDAP Operations

Permissions Syntax

Bind Rules

Bind Rules Overview

Using Boolean Bind Rules

See Also

Bind Rule Syntax

Bind Rule Syntax Overview

Defining User Access (userdn Keyword)

Defining General Access (all Keyword)

Defining Anonymous Access (anyone Keyword)

Defining Self Access (self Keyword)

Defining Parent Access (parent Keyword)

Specifying Users With LDAP URLs

Specifying Users With Wildcards

Specifying Users With a Logical OR of LDAP URLs

Excluding Specific LDAP URLs

Defining Group Access (groupdn Keyword)

Specifying a Group With a Single LDAP URL

Specifying a Group With a Logical OR of LDAP URLs

Defining Access Based on Value Matching (userattr Keyword)

Bind-Type Format

Attribute-Value Format

USERDN Bind Type Example

GROUPDN Bind Type Example

LDAPURL Bind Type Example

Attribute Value Example


Inheritance Example

Add Permissions

Defining Access From a Specific IP Address (ip Keyword)

Defining Access From a Specific Domain (dns Keyword)

Defining Access at a Specific Time of Day or Day of Week (timeofday and dayofweek Keywords)

Defining Access Based on Authentication Method (authmethod Keyword)

Authentication Method Examples

Defining Access Based on a Connection's Security Strength Factor (ssf Keyword)

DIGEST-MD5 QOP Key Size Mapping

TLS Cipher Key Size Mapping


Compatibility With the Sun Java System Directory Server Access Control Model

Global ACI

All Attributes targetattr Rule (targetattr="*")

Distinguished Name (DN) Wildcard Matching

Privilege Subsystem Impact

The targetscope Keyword

LDAP Modify Increment

Macro Support

The roledn Keyword

Understanding the Directory Server Schema

Index Databases

Understanding Directory Server Plug-Ins

Directory Server Replication

Root Users and the Privilege Subsystem

Supported Controls and Operations

To Target Attributes

In addition to targeting directory entries, you can also target one or more attributes, or all but one or more user attributes, that occur in the targeted entries. This is useful when you want to deny or allow access to partial information about an entry. For example, you can allow access to only the common name, surname, and telephone number attributes of a given entry. Similarly, you can deny access to sensitive information such as personal data.

If no targetattr rule is present, no attributes can be accessed by default. To access all user attributes, the rule must be targetattr="*". Operational attributes must be explicitly named.

The targeted attributes do not need to exist on the target entry or its subtree, but the ACI applies whenever they do. The attributes you target do not need to be defined in the schema. The absence of schema checking makes it possible to implement an access control policy before importing your data and its schema.

To target attributes, you use the targetattr keyword and provide the attribute names. The targetattr keyword uses the following syntax:

(targetattr = "attribute")
(targetattr != "attribute")

You can target multiple attributes by using the targetattr keyword with the following syntax:

(targetattr = "attribute1 || attribute2 ... || attributeN")
(targetattr != "attribute1 || attribute2 ... || attributeN")

For example, to target an entry's common name, surname, and uid attributes, you would use the following:

(targetattr = "cn || sn || uid")

To target all of an entry's user attributes, except carlicense, you would use the following target:

(targetattr != "carlicense")

The preceding example does not return operational attributes.

Targeted attributes include all subtypes of the named attribute. For example, (targetattr = "locality") also targets locality;lang-fr. You can also target subtypes specifically, for example, (targetattr = "locality;lang-fr-ca").

You can use a wildcard as a stand-alone character in a targetattr rule (such as targetattr="*"), but this use is discouraged because it serves no particular purpose and can have a negative performance impact.