linux系统优化

centos7系列

关闭没用的服务

关闭selinux，配置或关闭防火墙

配置yum源，epel源

下载常用软件

修改内核参数

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

yum install -y wget vim

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

yum install -y bash-completion lrzsz  nc axel nmap tree 

systemctl disable firewalld.service

systemctl stop firewalld.service

setenforce 0

sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config

chmod +x /etc/rc.d/rc.local