Virtual private networks (VPNs) use the public internet to connect remote sites, offices, or users together. VPNs use "virtual" connections routed through the Internet but the security settings of a VPN ensure data security because all traffic inside the VPN is encrypted.
From a user’s point of view, a VPN connection is the same as a connection within a private network. For example, a remote worker can access a VPN from the road and have the same experience as she would while working in the office. Similarly, large enterprises with data centers, offices, and partner networks spread across the globe can use VPNs to connect their resources into one logical network.
Why use VPNs in enterprise - security guarantee
VPNs help companies prove that they are complying to security standards and that they “own” all the data inside their network. In cloud computing, there is a hurdle for enterprises who want to use the public internet to connect to a cloud-based customer or cloud-based storage but they just cannot let their private data be outside of their own network.
|Image credit: Wikimedia Commons|
VPNs are more secure because they use tunneling protocols and data encryption. Tunnels help enterprises ensure sender authentication so unauthorized users cannot access their VPN. VPNs can also guarantee the message was not tampered with during transmission.
Some secure VPN protocols include:
Also, check out some of our similar Ask a Cloud Networking Expert posts. We’ve covered more technical and specific topics, like encryption, IPsec security and how UDP multicast can work in the cloud.
Cloud VPNs (sometimes called virtual private clouds or VPCs) can be the answer to security and compliance concerns in public clouds. Cloud VPNs work just like a local network VPN, but instead of creating a private network on top of wifi or the public internet, a cloud VPN is a private network over top of a cloud providers’ network infrastructure that can bridge data centers and cloud geographies.
Where does CohesiveFT's VNS3 fit in?
Using VPN technology, VNS3 creates an overlay network over top of any hardware or cloud computing resource. VNS3 connects the VPN with your IPsec tunnels to any customer or partner networks. VNS3 lets you launch and configure a secure network with either REST APIs or through a web-based interface.
VNS3 allows you to separate control from the hardware level. Because control is separated from hardware, you have more control over your network security. So, essentially VNS3 lets you free your application from a cloud provider, hardware, or risky network sniffers.
|Source: this guy|
Title: Director of Products and Marketing
Favorite Snack: Cashews
Credentials in the "Expert's" words:
Do I have a bunch of certifications? Nope. Sadly my Smart Cloud Advisor and Architect certs just expired. My primary job function is marketing, let's see if I can self promote.
I have a over six years of experience designing our cloud network product. I also moonlight as a member of our support team (does that make me a masochist?) and services team. In those roles I have helped our customers design, deploy and tune hundreds of cloud networks and troubleshoot thousands of IPsec tunnel negotiations. In many cases, I end up configuring both sides of the connection and have become familiar with a number of network security and routing hardware appliances from all corners of the market: Cisco, Juniper, Watchguard, Dell SONICWALL, Netgear, Fortinet, Barracuda Networks, Check Point, Zyxel USA, McAfee Retail, Citrix Systems, Hewlett Packard, D-Link, WatchGuard, and Palo Alto Networks.