Tuesday, May 10, 2011

How to install pptpd on vpn openvz linux vps

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The following post explains how to setup, install and configure pptpd vpn on centos linux vps created on openvz server node.

On openvz node machine :
Enable these modules.

modprobe ppp_mppe
modprobe ppp_deflate
modprobe zlib_deflate
modprobe ppp_async
modprobe ppp_generic
modprobe slhc
modprobe crc_ccitt

[root@me ~]# lsmod | grep ppp
ppp_mppe 39816 0
ppp_deflate 39168 0
zlib_deflate 52760 1 ppp_deflate
ppp_async 45056 0
ppp_generic 63632 4 ppp_mppe,ppp_deflate,ppp_async
slhc 39680 1 ppp_generic
crc_ccitt 35200 1 ppp_async

Creating and enabling PPP for vps :
Replace the VEnumber with your vps id and execute the following commands on openvz server.

vzctl set [VEnumber] --features ppp:on --save
vzctl start [VEnumber]
vzctl set [VEnumber] --devices c:108:0:rw --save
vzctl exec [VEnumber] mknod /dev/ppp c 108 0
vzctl exec [VEnumber] chmod 600 /dev/ppp

checking the module  [after installing pptpd]
/usr/sbin/pppd
You should see output like
~?}#?!}!}!} }4}"}&} } } } }%}&)Q?}4}'}"}(}"p})
Now thats done.

On openvz vps :
Install pptpd :

Use sourceforge repo to install pptpd
#yum install pptpd

Configure your network
# vi /etc/pptpd.conf
remoteip 192.168.0.234-238,192.168.0.245

Setting dns for internet access. Otherwise you wont have access to internet
#vi /etc/ppp/pptpd-options

ms-dns 8.8.8.8
ms-dns 8.8.4.4


iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o venet0 -j MASQUERADE
iptables-save > /etc/sysconfig/iptables

Now start the pptpd service


/etc/init.d/pptpd start

Add users :
[root@me ]# vi /etc/ppp/chap-secrets
# Secrets for authentication using CHAP
# client server secret IP addresses
vpn1 pptpd cyiefdxYn *
[root@me ]#

Usename is : vpn1
Password is : cyiefdxYn

now restart the pptpd service.
/etc/init.d/pptpd restart

Thats it.
You can check the logs while connecting to this server as

tail -f /var/log/messages
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4 comments:

  1. hello..thanks for sharing this module.it helps me a lot.without it i couldn't start.

    ReplyDelete
  2. Hello,

    Thanks for your article.

    What is VEnumber ? What can i put there ?

    ReplyDelete
  3. @ Special
    VEnumber is the id of your vps. You can get this by running the command

    #vzlist -a | grep Your_IP_address

    ReplyDelete
  4. Thanks for letting us know about the way to install pptpd on vpn openvz linux VPS. From several days I was looking to get this method and finally your blog helps me a lot. I'm really very thankful to you.

    ReplyDelete

Be nice. That's all.