@justice90 - Here it is install (PPTP) server using Poptop. This allows roaming users to connect to their corporate network from anywhere on the Internet securely and inexpensively. It supports Windows 95/98/Me/NT/2000/XP PPTP clients and Linux PPTP clients. The requirements are: -
CentOS 5
kernel-2.6.18-8.el5
ppp-2.4.4-1.el5
Kernel version 2.6.15 or above has MPPE built-in which is required for MSCHAPv2. CentOS 5 kernel version is 2.6.18 that means you do not need to install the MPPE module. CentOS 5 comes with ppp-2.4.4-1.el5 and it is MPPE support enabled.
1. Run the command below to test if your kernel supports MPPE and you should get a return an “ok”: -
modprobe ppp-compress-18 && echo ok
2. Download the RPM file pptpd-1.3.4-1.rhel5.1.i386.rpm from: -
http://poptop.sourceforge.net/yum/stable/packages/
3. Install the RPM by running this command: -
rpm -ivh pptpd-1.3.4-1.rhel5.1.i386.rpm
4. Change the following file /etc/ppp/options.pptpd as below: -
name pptpd
refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
require-mppe-128
proxyarp
lock
nobsdcomp
novj
novjccomp
nologfd
5. Change the following file /etc/pptpd.conf as below: -
option /etc/ppp/options.pptpd
logwtmp
localip 192.168.2.1
remoteip 192.168.2.11-15
6. Add the following username (johndie) and password (passwrd) in /etc/ppp/chap-secrets as below: -
# Secrets for authentication using CHAP
# client server secret IP addresses
johndoe pptpd passwrd *
7. Run the following command to enable the pptpd to start automatically in runlevel 3 and 5 as below: -
chkconfig --level 35 pptpd on
8. Now, you can start the pptpd service as below: -
service pptpd start
9. For pptpd to work, the packet forwarding must be enabled. Edit /etc/sysctl.conf and change the line to below: -
net.ipv4.ip_forward = 1
10. To enable it immediately, run the following command below: -
sysctl -p