Centos 7 安装V*N（pptpd）脚本
来自： http://my.oschina.net/sunchp/blog/617784
#!/bin/bash
yum install -y perl
rpm -ivh http://dl.fedoraproject.org/pub/epel/7/x86_64/p/pptpd-1.4.0-2.el7.x86_64.rpm
echo "ms-dns 8.8.8.8" >> /etc/ppp/options.pptpd
echo "ms-dns 8.8.4.4" >> /etc/ppp/options.pptpd
echo "localip 9.9.0.1" >> /etc/pptpd.conf
echo "remoteip 9.9.0.10-200" >> /etc/pptpd.conf
echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
sysctl -p
firewall-cmd --permanent --direct --add-rule ipv4 filter INPUT 0 -i eth0 -p tcp --dport 1723 -j ACCEPT
firewall-cmd --permanent --direct --add-rule ipv4 filter INPUT 0 -p gre -j ACCEPT
firewall-cmd --permanent --direct --add-rule ipv4 filter POSTROUTING 0 -t nat -o eth0 -j MASQUERADE
firewall-cmd --permanent --direct --add-rule ipv4 filter FORWARD 0 -i ppp+ -o eth0 -j ACCEPT
firewall-cmd --permanent --direct --add-rule ipv4 filter FORWARD 0 -i eth0 -o ppp+ -j ACCEPT
firewall-cmd --reload
echo "account pptpd password *" >> /etc/ppp/chap-secrets
systemctl restart pptpd
netstat -an|grep tcp|grep 1723