VPN Firewall

Protector UTM Appliance comes fully loaded with VPN Firewall.

This can allow you to connect remotely to your office in a secure way.

And with the Firewall you can secure your network from intruders coming in remotely.

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What is a VPN firewall?

Before we talk about VPN firewalls, it is important for understanding what an encrypted VPN service really is.

VPN basically stands for virtual private network; it is a private network that is created within a public network, like the internet.

The virtual private network allows the node/ computer that is connected to the network to be able to send or receive data.

Through any shared or public site which allows it to take advantage of the functionality.

Security as well as the management policies which are granted to private networks.

To setup a virtual connection must be created point to point with the help of a dedicated connection, encryption of the traffic or with the help of virtual tunneling protocols.

Understanding how firewalls work

Now that you know what a virtual private network is and how it works, it is the best way and recommended to have more in depth information about what a firewall is and how it operates. A

firewall is basically a software or a hardware based network tool that is used to monitor all incoming and outgoing traffic.

It basically creates a type of wall or barrier between an internal, trusted network and an external, un trusted network.

The firewall carefully monitors all data packets that are sent and received from the network, and makes sure that all the data is properly protected.

In case any viruses or harmful malware is detected, the firewall automatically prevents the data packets from entering.

The most important thing here is to make sure that you have a good firewall in your computer.

Larger companies usually have expensive, large scale security firewalls that are designed to work flawlessly and detect even the minutest of troubles.

Software based firewalls might not be as effective, but if they are used for protecting just one system, then they are fine enough.

Almost every other operating system nowadays comes built in with a firewall.

What you need to know about VPN firewalls

VPN hardware based firewalls appliances designed by large scale companies.

These are basically connected to large scale virtual private networks, and prevent the networks from any sort of intrusions.

The VPN firewalls can be purchased from some of the biggest companies in the tech world, as they have a very significant market at present.

With so many companies now opting to create their own virtual private networks rather than resort to the insecurity brought about by public networks, having a virtual private network firewall in place is very important.

Usually, a VPN firewall is a pretty expensive product, and because it is such a heavy duty device, it is capable of providing maximum protection to customers and users without much of a problem.

VPN firewalls are currently used by large scale companies in order to protect their systems and servers from any sort of unnecessary trouble and/ or cyber attacks.

Tech based companies usually employ Vpn firewalls in their companies. 

VPN Firewall

Firewalls are extremely important while using wireless network regardless of the type, that is, public or private.

These act as barriers between hackers and the system thereby reducing the chance of invasion of privacy, viruses and cyber-attacks.

When you are online through a VPN, the need to configure a firewall is enhanced because of the potential vulnerability your system becomes exposed to within a public network.

herefore establishing a connection between your VPN and a firewall is very important.

Techniques used for configuring VPN Connection with a Firewall?

The configuration process of a VPN connection is although very simplistic and straightforward.

However, when you want your VPN connection to get filtered through firewall, router or proxy server, then the process becomes complex and demanding.

The most important decision a network administrator has to take is of placing the VPN server.  

In this regard, as the picture displays, there are three different approaches for relating the VPN with the network’s firewall.

Placing the server behind the firewall is probably the most commonly adopted approach.

This is usually preferred while working with DMZ with mail servers or database servers, etc.

This approach is actually very beneficial because it clearly and easily gets adjusted in the network’s existing security infrastructure.

Moreover, user/administrator is already aware about how to route the traffic.

Conversely, if better security is your preference then consider placing the VPN server on the front of your firewall.

This mechanism involves placing the VPN box outside the firewall so that it only sends VPN traffic after passing it through the firewall.

Due to this, a hacker cannot attack the VPN box.

This approach limits the resource accessing range of authenticated users on the local network as well, which further reduces the chances of data invasion.

One shortcoming of this approach is that traffic that flows between the VPN server and firewall is not encrypted.

Third technique is of placing the server with the firewall, but from a logical perspective, the server will still remain behind the firewall but will complement it according to its capacity.

In this way both will perform routing.

However, this must be kept in mind that when multiple services function on a box, the probability of excessive troubleshooting and management related issues cannot be overlooked.

Importance of VPN server Geography while Connecting with Firewall

It is of paramount importance while configuring VPN server with a firewall is to realize the geography of the server.

For instance, if the server is placed behind the firewall and you receive connections not from remote servers but from individual VPN clients only, then you will have to enable the firewall for accepting incoming traffic on a specific port.

Additionally, you will also have to make sure that no other access control lists are being filtered.

Geography of a VPN server allows you to understand which of the firewall interfaces require assigned filters for allowing VPN traffic.