sheel（启动优化脚本）

#!/bin/sh
if [[ `id -u` != "0" ]];then
  echo "please run this script as root"
  exit 1
fi

#Source function library
. /etc/init.d/functions

#yum 
ConfigYum(){
    cd /etc/yum/repos.d/
    touch ou.repo
    echo "[test]">>ou.repo
    echo "name=test">>ou.repo
    echo "baseurl=file:///rhel7.2">>ou.repo
    echo "gpgcheck=0">>ou.repo
}

#iptables
Iptables(){
    echo "close iptables"
    cp /etc/selinux/config /etc/selinux/config.`date + "%Y+%m+%d_%H:%M:%S"`
    systemctl stop iptables
    systemctl disable iptables
    sed -i 's/SELINUX=enables/SELINUX=disabled/' /etc/selinux/config
    setenforce 0

    grep SELINUX=disabled /etc/selinux/config
    echo "Close selinux -OK and iptables -OK"
    sleep 2
}

#SSH
Sshd(){
    echo "SSH"
    sed -i 's%#Port 22%Port 25163%'
    sed -i 's%#PermitRootLogin yes%PermitRootLogin no%'
    sed -i 's%#PermitEmptyPasswords no%PermitEmptyPasswords no%'
    sed -i 's%#UseDNS yes%UseDNS no%'
    systemctl reload sshd.service
}
Sshd
Iptables
ConfigYum

ps:找个工作好难啊