酷特尔

不多解释，我的第一个bash脚本----Centos6.3下安装VPN（pptpd）服务器,看上去还是很笨的脚本，欢迎各位大侠进行有必要的指点。关于上一篇pptpd配置博文这里不再赘述，把代码粘贴出来晒干点~~~

#!/bin/bash

function installVPN(){

yum remove -y pptpd ppp

iptables --flush POSTROUTING --table nat

iptables --flush FORWARD

rm -rf /etc/pptpd.conf

rm -rf /etc/ppp*

yum install -y ppp iptables

echo 1 > /proc/sys/net/ipv4/ip_forward

cd /tmp

wget http://poptop.sourceforge.net/yum/stable/packages/pptpd-1.3.4-2.el6.x86_64.rpm

rpm -ivh pptpd-1.3.4-2.el6.x86_64.rpm

cat >/etc/ppp/options.pptpd<<END

name pptpd

refuse-pap

refuse-chap

refuse-mschap

require-mschap-v2

require-mppe-128

ms-dns 8.8.8.8

ms-dns 8.8.4.4

proxyarp

lock

nobsdcomp

novj

novjccomp

nologfd

END

cat >/etc/pptpd.conf<<END

option /etc/ppp/options.pptpd

logwtmp

localip 10.10.10.1

remoteip 10.10.10.205-254

END

iptables -t nat -A POSTROUTING -s 10.10.10/8 -o eth0 -j SNAT --to-source `ifconfig  | grep 'inet addr:'| grep -v '127.0.0' | cut -d: -f2 | awk 'NR==2 { print $1}'`

iptables -A FORWARD -s `ifconfig  | grep 'inet addr:'| grep -v '127.0.0' | cut -d: -f2 | awk 'NR==2 { print $1}'`/32 -o eth0 -j ACCEPT

service pptpd start

chkconfig --level pptpd 2345 on

chkconfig pptpd on

service iptables save

chkconfig iptables on

service iptables start

}

function addVPNuser(){

echo "input user name:"

read username

echo "input password:"

read userpassword

echo "${username} pptpd ${userpassword} *" >> /etc/ppp/chap-secrets

service pptpd restart-kill

service pptpd start

service iptables restart

}

echo "which do you want to ? input the number."

echo "1. install VPN service"

echo "2. add VPN user"

read num

case "$num" in

[1] ) (installVPN);;

[2] ) (addVPNuser);;

*) echo "nothing,exit";;

esac

bash echo "Your VPN server configuration is complete,The default user password vpnuser as test123 Please run the script again to add custom user"