#!/usr/bin/env bash
red='\e[31m'
end='\e[0m'
while read -p "请输入您要设定的主机名：" name
do
    read -p "Are sure your hostname[y/n]: " var
    if [ "$var" == "y" -o "$var" == "yes" ];then
        hostnamectl set-hostname $name
        break
    else
        echo "重新输入"
fi
done
ip=`ip a show eth0 |grep 'inet ' |awk '{print $2}' |awk -F"/" '{print $1}'`
sed -ri '$a'"$ip $name" /etc/hosts


echo -e "$red 清空防火墙 $end"
systemctl stop firewalld && systemctl disable firewalld

echo -e "$red 关闭selinux $end"
setenforce 0
sed -ri '/^SELINUX=/ c SELINUX=disabled' /etc/selinux/config 

yum_dir=/etc/yum.repos.d
back_dir=$yum_dir/backup
echo -e "$red 配置yum源 $end"
if [ ! -d $back_dir ];then
    mkdir -p $back_dir
fi
mv $yum_dir/*.repo $back_dir
if ! rpm -q wget &>/dev/null ;then
    cat > $yum_dir/ftp.repo <<-EOF
    [ftp]
    name=ftp
    baseurl=ftp://10.18.40.100/centos7u3
    gpgcheck=0
    EOF
    if [ $? -eq 0 ];then
        yum -y install wget
        rm -rf $yum_dir/ftp.repo
    fi
fi

wget -P /etc/yum.repos.d/ ftp://10.18.42.13/repo/163.repo
yum makecache

echo -e "$red install epel-release $end"
if rpm -q epel-release &>/dev/null
then
    rpm -e epel-release && yum -y install epel-release
else
    yum -y install epel-release
fi
echo -e "$red install init soft $end"
yum -y install vim bash-completion psmisc lftp tree chrony

echo -e "$red  modify sshd_config $end"
sed -ri '/^GSSAPIA/ s/yes/no/' /etc/ssh/sshd_config 
sed -i '$a UseDNS no' /etc/ssh/sshd_config
systemctl restart sshd

echo -e "$red  同步时间 $end"
sed -ri 's/^(server)/#\1/' /etc/chrony.conf
sed -ri '/^#server 3/ a server 10.18.42.13 iburst' /etc/chrony.conf
systemctl restart chronyd
systemctl enable chronyd