initCentOS6.6

linux

#!/bin/bash
if [[ "$(whoami)" != "root" ]]; then
    echo "please run this script as root ." >&2
    exit 1
fi
echo -e "\033[31m 这个是系统初始化脚本，请慎重运行！确定使用请注释指定行 \033[0m"
#请注释下一行
exit 1;
#设置动态ip
ip(){
     sed -i 's/ONBOOT=no/ONBOOT=yes/' /etc/sysconfig/network-scripts/ifcfg-eth0
     service network restart > /dev/null
}
yum_update(){
    yum -y install wget
    cd /etc/yum.repos.d/
    mkdir bak
    mv ./*.repo bak
    wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
    wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
#    yum clean all && yum makecache
#    yum -y install vim unzip  openssl-client gcc gcc-c++ ntp
}
#关闭SELINUX
selinux(){
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/sysconfig/selinux
setenforce 0
}
#设置时间时区同步
zone_time(){
    rm -rf /etc/localtime
    ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
    # Update time
    /usr/sbin/ntpdate pool.ntp.org
    echo '*/5 * * * * /usr/sbin/ntpdate pool.ntp.org > /dev/null 2>&1' > /var/spool/cron/root;chmod 600 /var/spool/cron/root
    /sbin/service crond restart
}
# iptables
iptables(){
    iptables -F
    iptables -P INPUT ACCEPT
    iptables -P OUTPUT ACCEPT
    service iptables save
}
other(){
# initdefault 
# sed -i 's/^id:.*$/id:3:initdefault:/' /etc/inittab
# /sbin/init q
}
main(){
    ip
    yum_update
    selinux
    zone_time
    iptables
}
main