1、设置时区

rm -f /etc/localtime
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

2、配置内网IP （如果是外网IP，linux要修改远程端口）

3、配置自己的yum源

yum install wget
rm -f /etc/yum.repos.d/*
wget -P /etc/yum.repos.d/ http://mirrors.163.com/.help/CentOS7-Base-163.repo
wget -P /etc/yum.repos.d/ https://mirrors.aliyun.com/repo/epel-7.repo

如何需要最新版本的rpm包，请安装下面的仓库

rpm -Uvh http://repo.webtatic.com/yum/el7/epel-release.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

4、关闭SELinux

sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config
setenforce 0

5、添加zabbix监控

6、配置防火墙

systemctl stop firewalld.service
systemctl disable firewalld.service

7、安装软件包

yum install -y vim openssh-clients ntpdate man lrzsz net-tools

8、时间同步任务

echo "10 6 * * * root (/usr/sbin/ntpdate time1.aliyun.com && /sbin/hwclock -w) &> /dev/null" >> /etc/crontab

9、配置主机名

vim /etc/hostname

10、修改文件句柄数

#临时修改，立刻生效
ulimit -n 655350         
 
#永久修改
echo "* soft nofile 655360" >> /etc/security/limits.conf
echo "* hard nofile 655360" >> /etc/security/limits.conf

11、可以禁用ipv6

cat >> /etc/modprobe.d/ipv6.conf <> .pip/pip.conf <