CentOS 6 Linux防火墙 service iptables status (功能描述:查看防火墙状态) chkconfig iptables –list (功能描述:查看防火墙开机启动状态) service iptables stop (功能描述:临时关闭防火墙) chkconfig iptables off (功能描述:关闭防火墙开机启动) chkconfig iptables on (功能描述:开启防火墙开机启动) Centos7 Linux防火墙 # vi /etc/syscon
第六章 并行GC The Parallel Collector The parallel collector (also referred to here as the throughput collector) is a generational collector similar to the serial collector; the primary difference is that multiple threads are used to speed up garbage colle