Employing A VPN
Virtual Private Networks, VPN, are becoming one of the most important business tools. A VPN service provides remote and mobile business personnel to access to their emails, documents and applications from their computers at a distance. The dependency rate of this VPN service for current age business is such that a VPN system failure can cause a significant risk for the business.
Without a VPN remote access, mobile sales staff place orders or set actions for customer mails. A staff at a distant and remote location cannot process shipments without a VPN service. Thus, a VPN service running in parallel with global the business demands fail, a significant interruption of business wills be seen and it would even result in serious loss in business.
From the number of reasons a VPN service breakdown can occur, two major reasons are to be highlighted,
1. VPN hardware failure
2. Communication links failure
These are the common system failures generally observed in a VPN outage. The time to recover from these system failures depends on how quickly a VPN technology expert can provide a system backup or a system replacement unit or how quickly the communication links are restored.
As a business has the least time to afford to lose or rebuilding or restoring a VPN failure, they have to ensure a confident VPN service. This is achieved either by appointing a personal VPN engineer or/and a backup system. Implementing a highly-available VPN service is just as a precaution to take control over the time that would otherwise be wanted for the recovery of a single VPN component.
Generally, implementing a highly available VPN system is to purchase two VPN hardware units and configuring both of them into a series connection with highly available pair using either a vendor supplied technology or a third party solution. With this system working practically, if one system fails, the other will respond immediately to provide back up.
The normal approaches for VPN communication failures are to install two different accessible hardware’s from two different service providers. It is more like an intelligent step as using service providers of different backgrounds removes the risk of any single operator carrying the fault that impacts each of the hardware. If one hardware fails, the remote users can re-connectivity immediately via a new one. The re-connectivity, however, can be done by the remote user itself who will be selecting an alternate VPN server manually.
Another approach would be to provide multiple internet routes to access VPN servers, although this approach is quite a complex bit of process.
Another alternative approach to doubling up hardware’s is to use hosted VPN service. It is a smart way to reduce the cost of doubling ups of hardware’s and also getting a high available VPN service. To use a hosted VPN in a high availability service, VPN server software needs to be installed on more than one existing windows server.
As hosted services use internet, business firms an install low costs internet circuits of multiple providers. This is just to ensure no internet connection breakdown or temporary failure. The hosted VPN services, however, provide a transparent failover for remote users with no discontent or reconnect required.
When considering high available VPN services, factors that need to be considered are complexity of the management, failover and recovery of the system and cost associated with these at a long term.