红帽全球峰会13.4. IdM 客户端的 IPv6 要求
RHEL 身份管理(IdM)不需要在您要注册到 IdM 的主机的内核中启用 IPv6 协议。例如，如果您的内部网络只使用 IPv4 协议，那么您可以将系统安全服务守护进程(SSSD)配置为只使用 IPv4 来与 IdM 服务器进行通信。要做到这一点，您可以将以下行插入到 /etc/sssd/sssd.conf 文件的 [domain/NAME] 部分 ：
lookup_family_order = ipv4_only
lookup_family_order = ipv4_only
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