In Vultr VPS, the entire pptp vpn process is manually built using Debian 8 i386 (jessie) as the operating system platform.

In Vultr VPS, the entire pptp vpn process is manually built using Debian 8 i386 (jessie) as the operating system platform.

Update the server and install the PPTP Service

Apt-get update

Apt-get upgrade

Apt-get install pptpd

Edit/etc/pptpd. conf

Find # localip and # remoteip, delete # And set the ip address

Localip 172.16.31.254

Remoteip 172.16.31.234-238

Edit/etc/sysctl. conf

Remove # net. ipv4.ip _ forward = 1 and enable ipv4 forward.

Run sysctl-p after modification.

Edit/etc/ppp/pptpd-options

Modify dns server address

ms-dns 8.8.8.8

ms-dns 8.8.4.4

Edit/etc/ppp/chap-secrets

Add a PPTP account

[Note

Format:

Username1 pptpd password *

Username2 pptpd password 172.16.31.234

The first column is the user name, and the second column is the server name (pptpd by default, which must be consistent with the value of the name row in the/etc/ppp/pptpd-options file)

The third column is the password, and the fourth column is the IP limit (not limited)

The format of the first line is not fixed Client IP address, and the format of the second line is fixed Client IP Address

]

Use iptables to create NAT

Install iptablesapt-get install iptables

Add a rule to the nat table

iptables -t nat -A POSTROUTING -s 172.16.31.0/24 -o eth0 -j MASQUERADE

[Note

Eth0 is the name of the network card. You can view it through ifconfig.

]

Set MTU

iptables -I FORWARD -p tcp --syn -i ppp+ -j TCPMSS --set-mss 1356

[Note

Recommended Vultr

　　Note:We recommend grouping ing a MTU of 1450 on your private network. Using a larger MTU will result in poor performance.

]

Iptables rules will be cleared at the next restart. To prevent iptables loss after the machine is restarted, run

Iptables-save>/etc/iptables-rules

Edit the/etc/network/interfaces File

Find eth0 and add the following sentence at the end of eth0 settings:

Pre-up iptables-restore </etc/iptables-rules

In this way, when the network adapter eth0 is loaded, it will automatically load the configuration we saved with iptables-save in advance..

Restart PPTP Service

/Etc/init. d/pptpd restart

Edit/etc/rc. local

Add boot start

/Etc/init. d/pptpd restart

Thank you for your ideas and code!

Refer to the blog post in no particular order:

Debian vpn-time travel lazy cat-blog Park

Build a VPN In Debian

Debian pptp vpn configuration tutorial-reizhi