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