#!/bin/bash
######################################
# 【指令碼說明】
# 指令碼檔名：CentOS 6.9 & 7.4 RESET.sh
# 指令碼用途：初始化 CentOS 6.9 & 7.4 系統初始設定
######################################

#-------------------------------------------------------
# 全域性指令碼
#-------------------------------------------------------
CENTOS_VERSION=`awk -F'.' '{print $1}' /etc/redhat-release | awk '{print $NF}' `;
source /etc/rc.d/init.d/functions;

#-------------------------------------------------------
# 請務必先執行全域性指令碼！
# 修改ssh配置檔案，使每一次遠端連線驗證減少等待時間
#-------------------------------------------------------
cp /etc/ssh/sshd_config{,_bak};
sed -ri 's/(GSSAPIAuthentication )yes/\1no/' /etc/ssh/sshd_config;
sed -ri 's/#(UseDNS ).*/\1no/' /etc/ssh/sshd_config;
grep -e "GSSAPIAuthentication" -e "UseDNS" /etc/ssh/sshd_config;
if [ $CENTOS_VERSION = 6 ]; then
    service sshd restart;
elif [ $CENTOS_VERSION = 7 ]; then
    systemctl restart sshd;
    [ $? = 0 ] && action "Restarting sshd:" /bin/true;
fi

#-------------------------------------------------------
# 請務必先執行全域性指令碼！
# 修改yum倉庫配置檔案
#-------------------------------------------------------
rm -vf /etc/yum.repos.d/*.repo;
echo "[base]" >> /etc/yum.repos.d/base.repo; 
echo "name=CentOS `awk -F'release' '{print $2}' /etc/redhat-release | awk '{print $1}'` DVD" >> /etc/yum.repos.d/base.repo;
echo "baseurl=file:///mnt" >> /etc/yum.repos.d/base.repo;
echo "gpgcheck=0" >> /etc/yum.repos.d/base.repo;
cat /etc/yum.repos.d/base.repo;
yum clean all && yum repolist;

#-------------------------------------------------------
# 請務必先執行全域性指令碼！
# 安裝自動掛載服務
#-------------------------------------------------------
yum -y install autofs lrzsz tree;
if [ $CENTOS_VERSION = 6 ]; then
    chkconfig autofs on;
    chkconfig --list autofs;
    service autofs start;
elif [ $CENTOS_VERSION = 7 ]; then
    systemctl enable autofs;
    [ $? = 0 ] && action "Enabled autofs on startup:" /bin/true;
    systemctl start autofs;
    [ $? = 0 ] && action "Starting autofs:" /bin/true;
fi

#-------------------------------------------------------
# 請務必先執行全域性指令碼！
# 更新yum倉庫配置檔案
#-------------------------------------------------------
sed -ri '
 
[email protected](baseurl=file://)/[email protected]\1/misc/[email protected]' /etc/yum.repos.d/base.repo;
cat /etc/yum.repos.d/base.repo;
umount /mnt;
yum clean all && yum repolist;

#-------------------------------------------------------
# 請務必先執行全域性指令碼！
#-------------------------------------------------------