yum install pptpd

echo "user01 pptpd 123456 * " >> chap-secrets

echo "net.ipv4.ip_forward=1" > /etc/sysctl.d/ip_forward.conf sysctl -p

vim /etc/pptpd.conf

localip 192.168.0.1
remoteip        192.168.0.234-238,192.168.0.245

systemctl start pptpd.service