service 功能说明： 管理系统服务 该命令在CentOS 7 里被systemctl取代。 语法格式： service [服务名] [执行命令] 执行命令包括： start, stop, restart, try-restart, reload, force-reload, status 等 停止服务： service crond stop 启动服务： service crond start 重启服务： service crond restart 查看服务状态： service crond status 说明：在工作中推荐使用/etc/init.d/crond 这种格式管理服务，因为有tab键补全 /etc/init.d/crond stop /etc/init.d/crond start /etc/init.d/crond restart /etc/init.d/crond status 参数选项： --status-all 显示所有服务状态 范例：查看当前服务状态 [root@testdb62 ~]# service --status-all clickhouse-server service is stopped ● elasticsearch.service - Elasticsearch Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; disabled; vendor preset: disabled) Active: inactive (dead) Docs: http://www.elastic.co 10月 13 17:12:21 testdb62 systemd[1]: Starting Elasticsearch... 10月 13 17:12:22 testdb62 elasticsearch[3281]: OpenJDK 64-Bit Server VM warning: Option UseConcMarkSw...se. 10月 13 17:12:31 testdb62 systemd[1]: Started Elasticsearch. 10月 14 15:26:05 testdb62 systemd[1]: Stopping Elasticsearch... 10月 14 15:26:05 testdb62 systemd[1]: Stopped Elasticsearch. 10月 14 15:26:05 testdb62 systemd[1]: Starting Elasticsearch... 10月 14 15:26:06 testdb62 elasticsearch[5900]: OpenJDK 64-Bit Server VM warning: Option UseConcMarkSw...se. 10月 14 15:26:15 testdb62 systemd[1]: Started Elasticsearch. 10月 15 14:09:21 testdb62 systemd[1]: Stopping Elasticsearch... 10月 15 14:09:21 testdb62 systemd[1]: Stopped Elasticsearch. Hint: Some lines were ellipsized, use -l to show in full. guacd is not running. Checking jexec status● keepalived.service - SYSV: Start and stop Keepalived Loaded: loaded (/etc/rc.d/init.d/keepalived; bad; vendor preset: disabled) Active: inactive (dead) Docs: man:systemd-sysv-generator(8) Usage: /etc/init.d/mhavip {start|stop} SUCCESS! MySQL running (15354) 未加载 netconsole 模块 已配置设备： lo ens160 当前活跃设备： lo ens160 Usage: /etc/init.d/realserver {start|stop} Redis is not running