Install pptp vpn service on Ubuntu 9.04

Many referencesArticleFinally, the PPTP service is successfully installed in Ubuntu 9.04 of vpslink, and the iPad is successfully logged on to the Internet. Change to the following steps:

 

1. Modify sources. List.

Because vpslink does not maintain pai.vpslink.com, we need to define some public mirror.

First, run the following command:

# Sed-I's/mirror.vpslink.com/mirrors.rit.edu/g'/etc/APT/sources. List

Then, replace the/etc/APT/sources. list file with the following content:

 

  Deb http:  //  Mirrors.163.com/ubuntu/ karmic main restricted universe multiverse  
  Deb http: //  Mirrors.163.com/ubuntu/ karmic-security main restricted universe multiverse  
  Deb http:  //  Mirrors.163.com/ubuntu/ karmic-Updates main restricted universe multiverse  
  Deb http:  //  Mirrors.163.com/ubuntu/ karmic-proposed main restricted universe multiverse  
  Deb http:  // Mirrors.163.com/ubuntu/ karmic-backports main restricted universe multiverse  
  Deb  -  SRC http:  //  Mirrors.163.com/ubuntu/ karmic main restricted universe multiverse  
  Deb  -  SRC http:  //  Mirrors.163.com/ubuntu/ karmic-security main restricted universe multiverse  
 Deb  -  SRC http:  //  Mirrors.163.com/ubuntu/ karmic-Updates main restricted universe multiverse  
  Deb  -  SRC http:  //  Mirrors.163.com/ubuntu/ karmic-proposed main restricted universe multiverse  
  Deb  -  SRC http: //  Mirrors.163.com/ubuntu/ karmic-backports main restricted universe multiverse 

Please refer to the following link for more information: sources.

 

 

2. Install the PPTP service.

# Apt-Get update

# Apt-Get install pptpd

 

3. edit/etc/pptpd. conf.

# Cancel the comments of the two lines (used to assign to connected VPN users ):

Localip 192.168.0.1

Remoteip 192.168.0.234-238,192.168 .0.245

# Comment out the following line (if there is a problem in 9.0.4, It is not needed ):

Logwtmp

 

4. Add VPN login users.

Edit/etc/PPP/chap-secrets to add a record

Username pptpd password *

# Username indicates the Login User Name

# Password indicates the user's password

# Pptpd indicates the pptpd service name. Do not modify it here.

# * Indicates that the login user can connect to any location

 

5. Set DNS resolution.

Edit/etc/PPP/pptpd-options, find the "MS-DNS" project, and change it to the opendns address as follows:

MS-DNS 208.67.222.222

MS-DNS 208.67.220.220

 

6. Configure/etc/sysctl. conf to allow forwarding.

First, find the net. ipv4.ip _ forward entry and modify it:

Net. ipv4.ip _ forward = 1

Then, run the following command:

# Sysctl-P

 

7. Restart the pptpd service.

#/Etc/init. d/pptpd restart

 

8. Configure iptables.

#/Sbin/iptables-T Nat-A postrouting-s 192.168.0.0/24-O eth0-J Masquerade

 

9. Save and configure iptables after restart.

# Iptables-save>/etc/iptables-Rules

Modify/etc/Network/interfaces and add the following in eth0:

Pre-up iptables-Restore </etc/iptables-Rules

 

Note that the Nash-hotplug is cleared; otherwise, the CPU is always occupied by 97%.

Modify the/etc/rc. Local file and add this command before exit 0: pkill-9 Nash