40 lines
700 B
Markdown
40 lines
700 B
Markdown
## 防火墙
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```shell
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# 关闭防火墙
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systemctl stop firewalld
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# 关闭开机启动
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systemctl disable firewalld
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# 校验状态
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firewall-cmd --state
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```
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# 关闭selinux （Security-Enhanced Linux）
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```shell
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# 临时关闭
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setenforce 0
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# 修改配置文件关闭
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sed -ri 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
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# 校验状态
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sestatus
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```
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# 交换分区设置
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```shell
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# 临时关闭
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swapoff -a
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# 修改配置文件
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sed -ri 's/.*swap.*/#&/' /etc/fstab
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# 修改配置文件
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echo "vm.swappiness=0" >> /etc/sysctl.conf
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# 更新
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sysctl -p
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```
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## 同步时间
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```shell
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# 安装
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yum -y install ntpdate
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# 同步阿里云时间
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crontab -e
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0 */1 * * * ntpdate time1.aliyun.com
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```
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