Configure Virtual Private Network on Windows Virtual Private Server.

Written by Pritam on September 22, 2008 – 6:02 am -

Following steps to configure the Virtual Private Network on Windows Virtual Private Server.

1. For windows Virtual Private Server, First you need to enable “NAT” for your Virtual Private Server. This must be done from the Main Hardware Node. We will do it on our Main Hardware Node.

2. After enabling “NAT” for your Virtual Private Server, Go to Start >> RUN >> Type “services.msc” in you Virtual Private Server
On the services list, select “Routing and Remote Access” and go to properties. Make the startup type automatic and apply. After that you should have the option to “Start” this service. Start this service as we are going to use this service basically to route our traffic

3. Now go to Start >> Settings >> Control Panel >> Administrative Tools >> Click on the shortcut says “Routing and Remote Access”. It should open the configuration panel of Routing and Remote Access.

4. Now right click on your computer name the click the option says “Configure and Enable remote and routing access”. Before doing this, make sure your Firewall service is stopped and disabled.

5. Now on the configuration wizard click Next to proceed >> In the configuration list select “Custom Configuration”, Press Next >> Select Virtual Private Network Access & NAT and Basic Firewall Option, Press Next >> Now press Finish to end the wizard.

This wizard should enable the PPTP & L2TP Virtual Private Network access to your firewall with private routing capability. Now you need to configure your Virtual Private Server to route the private Traffic to the Public Interface. To do this, we need to have any of the following two:

1. Two network interface to route one to another. or
2. We can use NAT (Network Address Translation) using the Microsoft Loopback adapter.

We will basically work with the 2nd one as Virtual Private Server don’t come with two network interfaces. To continue with the NAT configuration, go to the Routing and Remote Access panel >> Expand ComputerName (Local) >> Expand Ip Routing >> You should find a option says “NAT/Basic Firewall”. Simply right click on that option and use the New interface to add network translation. Now first add the Inferface says “Internal” which is basically for private network access with default settings and on second attempt add your main adapter to the NAT list and select the options says “Public Interface connected to this inferface” and select the option says “Enable NAT on this interface”.

Now your network should have the address translation working, that means your private requests should be now translated and you can use this Virtual Private Network as your internet gateway.

Now to allow your users to use Virtual Private Network, add a new user and from the properties allow its Dial In permission. User with Dial-In permission should be able to login using Virtual Private Network.


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What is VPS ?

Written by Jahangir on September 17, 2008 – 1:39 am -

A Virtual Private Server or Virtual Dedicated Server (VPS or VDS) is a method of partitioning a physical server into multiple servers such that each VPS has the appearance and capabilities of running on its own dedicated machine. Each virtual server account have its own operating system, can rebooted independently and have root access, users, IP addresses, memory, processes, files, applications, system libraries and configuration files. It fills the gap between shared hosting and dedicated hosting.

There are two kinds of virtualizations: software based and hardware based.
In a software based virtualization environment, the virtual machines share the same kernel and actually require the main node’s resources. This kind of virtualization normally has many benefits in a web hosting environment because of quota incrementing and decrementing in real time with no need to restart the node. The main examples are Virtuozzo, HyperVM, OpenVZ and Xen which is the core kernel of both Virtuozzo and HyperVM.

In a hardware based virtualization, the virtualization mechanism partitions the real hardware resources. In typical implementations, no burst or realtime quota modification is possible; the limits are hard and can only be modified by restarting a virtual machine instance. This kind of environment is potentially more secure in the sense that it is less subject to “Quality of Service crosstalk” between VM instances; on the other hand, its security is typically dependent on the correctness of a larger and more complicated Trusted Computing Base. It is more commonly used in big originations or commercial deployments. Examples include VMware ESX Server, Microsoft Virtual Server and Xen.

Virtual Private Server Hosting

A growing number of companies offer Virtual Private Server Hosting or Virtual Dedicated Server Hosting as an extension for Web hosting services. Some web hosting companies call a Virtual Private Server [VPS], Virtual Dedicated Server [VDS] or Virtual Dynamic Dedicated Server.

These types of hosting accounts are usually used as a stepping stone between your basic shared hosting accounts and dedicated hosting accounts. VPS server provides the flexibility of a dedicated server, users shares the system resources, such as the CPU and memory but unlike shared hosting (a virtual host on a shared hardware server) the file system is fully partitioned. Which provides more up-time and more consistenticy, also root access to the server provides the flexibility to add and change modules and to install your own software’s. You get all of the benefits of having your own dedicated machine, but you still have some limitation as to what you can do with it.

VPS is a much needed plan in between your shared and dedicated hosting. It allows you a little more flexibility than a shared hosting account, but limits you more than a dedicated account.


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