红帽全球峰会2.3. ($dn)宏示例
($dn) 宏将替换值与 LDAP 请求中的条目进行比较。例如，LDAP 请求以条目为目标：
cn=all,ou=groups,dc=subdomain1,dc=hostedCompany1,dc=example,dc=comACI 定义以下目标：
(target="ldap:///ou=groups,($dn),dc=example,dc=com")
($dn) 宏与本例中的 dc=subdomain1,dc=hostedCompany1 匹配。
当 ACI 的主题使用 ($dn) 宏时，与目标匹配的子字符串会展开主题：
aci: (target="ldap:///ou=*,($dn),dc=example,dc=com")
(targetattr = "*") (version 3.0; acl "Domain access"; allow (read,search)
groupdn="ldap:///cn=domainAdmins,ou=groups,($dn),dc=example,dc=com";)ACI 会展开，如下所示：
aci: (target="ldap:///ou=groups,dc=subdomain1,dc=hostedCompany1,
dc=example,dc=com") (targetattr = "*") (version 3.0; acl "Domain
access"; allow (read,search) groupdn="ldap:///cn=domainAdmins,ou=groups,
dc=subdomain1,dc=hostedCompany1,dc=example,dc=com";)扩展宏后，红帽目录服务器会根据正常过程评估 ACI，以确定是否授予访问权限。
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