master host 控制节点
Host Master Key 主机主密钥
Master Data Host 主数据主机
Host Master 管理者 ; 注册人
host master-key variant 主电脑主要键变式
Just make sure the lag time between the master host failing and the slave host taking over is minimal.
要确保主服务器发生故障和辅助服务器实施接管之间的延迟时间最小。
The basic goal of failover monitoring is to have the Nagios process on the slave host sit idle while the Nagios process on the master host is running.
故障转移监视的基本目标是让主服务器上的Nagios进程运行，同时让辅助服务器上的Nagios进程空闲。
Master zones are those for which the server is a master host (i.e., the delegated server for the domain).
主区域是主机(即该域的委托服务器)的区域。
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