When a process group becomes an orphan, its processes are sent a SIGHUP signal.
为了防止这类问题的产生，于是就有了孤儿进程组的概念。
To re-process the sshd_config file, send the SIGHUP command to the sshd (ssh server daemon) process.
为了重新处理 sshd_config文件，发送SIGHUP命令到sshd （ssh服务器守护）进程。
The signal SIGHUP forces xinetd to re-read its configuration and potentially close connections based on new parameters. The command to use is.
信号sighup让xinetd重新读取它的配置，并且根据新的参数，可能会关闭连接。
For instance, the system service xinetd, which launches other network services on demand, re-reads its configuration files upon the receipt of SIGHUP.
例如，系统服务xinetd会按需要启动其他网络服务，它在收到SIGHUP时会重新读取它的配置文件。
For instance, the system service xinetd, which launches other network services on demand, re-reads its configuration files upon the receipt of SIGHUP.
例如，系统服务xinetd会按需要启动其他网络服务，它在收到SIGHUP时会重新读取它的配置文件。
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