centos6.X下pptp vpn一键安装脚本

非常实用的脚本，果断转来。以前分享过的脚本都失效了。。。这个脚本在centos6.x下好用。

1. 下载vpn(CentOS6专用)一键安装包
wget http://www.hi-vps.com/shell/vpn_centos6.sh
chmod a+x vpn_centos6.sh

2. 运行一键安装包
bash vpn_centos6.sh

会有三个选择:

1. 安装VPN服务
2. 修复VPN
3. 添加VPN用户首先输入1，回车,VPS开始安装VPN服务. VPN服务安装完毕后会默认生成一个用户名为vpn，密码为随机数的用户来。

3. 添加VPN用户
bash vpn_centos6.sh
选择3，然后输入用户名和密码,OK

4. 修复VPN服务
如果VPN拨号发生错误,可以试着修复VPN,然后重启VPS
bash vpn_centos6.sh
选择2，然后reboot

下面是具体的脚本：

 #!/bin/bash function installVPN(){ echo “begin to install VPN services”; #check wether vps suppot ppp and tun yum remove -y pptpd ppp iptables –flush POSTROUTING –table nat iptables –flush FORWARD rm -rf /etc/pptpd.conf rm -rf /etc/ppp arch=`uname -m` wget http://www.hi-vps.com/downloads/dkms-2.0.17.5-1.noarch.rpm wget http://wty.name/linux/sources/kernel_ppp_mppe-1.0.2-3dkms.noarch.rpm wget http://www.hi-vps.com/downloads/kernel_ppp_mppe-1.0.2-3dkms.noarch.rpm wget http://www.hi-vps.com/downloads/pptpd-1.3.4-2.el6.$arch.rpm wget http://www.hi-vps.com/downloads/ppp-2.4.5-17.0.rhel6.$arch.rpm yum -y install make libpcap iptables gcc-c++ logrotate tar cpio perl pam tcp_wrappers rpm -ivh dkms-2.0.17.5-1.noarch.rpm rpm -ivh kernel_ppp_mppe-1.0.2-3dkms.noarch.rpm rpm -qa kernel_ppp_mppe rpm -Uvh ppp-2.4.5-17.0.rhel6.$arch.rpm rpm -ivh pptpd-1.3.4-2.el6.$arch.rpm mknod /dev/ppp c 108 0 echo 1 > /proc/sys/net/ipv4/ip_forward echo “mknod /dev/ppp c 108 0″ >> /etc/rc.local echo “echo 1 > /proc/sys/net/ipv4/ip_forward” >> /etc/rc.local echo “localip 172.16.36.1″ >> /etc/pptpd.conf echo “remoteip 172.16.36.2-254″ >> /etc/pptpd.conf echo “ms-dns 8.8.8.8″ >> /etc/ppp/options.pptpd echo “ms-dns 8.8.4.4″ >> /etc/ppp/options.pptpd pass=`openssl rand 6 -base64` if [ "$1" != "" ] then pass=$1 fi echo “vpn pptpd ${pass} *” >> /etc/ppp/chap-secrets iptables -t nat -A POSTROUTING -s 172.16.36.0/24 -j SNAT –to-source `ifconfig | grep ‘inet addr:’| grep -v ’127.0.0.1′ | cut -d: -f2 | awk ‘NR==1 { print $1}’` iptables -A FORWARD -p tcp –syn -s 172.16.36.0/24 -j TCPMSS –set-mss 1356 service iptables save chkconfig iptables on chkconfig pptpd on service iptables start service pptpd start echo “VPN service is installed,your VPN username is vpn,VPN password is ${pass}” } function repaireVPN(){ echo “begin to repaire VPN”; mknod /dev/ppp c 108 0 service iptables restart service pptpd start } function addVPNuser(){ echo “input user name:” read username echo “input password:” read userpassword echo “${username} pptpd ${userpassword} *” >> /etc/ppp/chap-secrets service iptables restart service pptpd start } echo “which do you want to?input the number.” echo “1. install VPN service” echo “2. repaire VPN service” echo “3. add VPN user” read num case “$num” in [1] ) (installVPN);; [2] ) (repaireVPN);; [3] ) (addVPNuser);; *) echo “nothing,exit”;; esac