How to Install PPTP on CentOS

1. Use yum install ppp to install ppp

2. Download the last version of pptpd from below link :

http://poptop.sourceforge.net/yum/stable/packages/

3. Use rpm –ivh pptpd-lastversion.rpm to install the pptpd package

4. Open /etc/pptpd.conf, uncomment and edit localip and remoteip as you want.

5. Open /etc/ppp/chap-secrets and add the users connection information there :

# client server secret IP addresses

username pptpd password *

6. Restart the PPTP server.

* To use DNS address for clients open /etc/ppp/options.pptpd, uncomment and edit the DNS part :

ms-dns DNS Server Address

7. Open /etc/sysctl.conf and change net.ipv4.ip_forward=0 to 1

8. Use iptables command as below :

# iptables -t nat -I POSTROUTING -s source network -o output Ethernet -j SNAT --to gateway IP address

Ex. # iptables -t nat -I POSTROUTING -s 192.168.0.0/24 -o eth0 -j SNAT --to 192.168.1.1

9. Save your configuration :

/sbin/service iptables save