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centos 7防火墙开关

centos7防火墙sudo systemctl status firewalld。 查看后,看到active(running)就意味着防火墙打开了。 如果想关闭防火墙,命令为: sudo...

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centos 批量添加连续IP

进入网卡eth0 vi /etc/sysconfig/network-scripts/ifcfg-eth0 在最后一行添加 NM_CONTROLLED=NO   创建一个range0...

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CentOS 通过SpeedTest工具测速

CentOS7通过SpeedTest工具测速 一、通过直接下载SpeedTest脚本,给权限运行脚本即可 wget -O speedtest-cli...

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CentOS 7启动时出现报错提示“Give root password for maintenance”

CentOS 7启动时出现报错提示“Give root password for maintenance” 出现这个问题大多数硬盘分区错误导致...

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iptables添加端口

iptables -I INPUT -p tcp -m tcp --dport 22 -j ACCEPT 添加22端口

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