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Issue No. 95July 2020

What is a VPN?

Many of you have heard of this technology term “VPN”, but what does it mean?  In a day of age now where more employees are working from home, understanding VPN’s and how they work is important for many businesses.

VPN Definition:

A Virtual Private Network, or VPN is a set of technologies which are used to link computers to create a private network. Another network is used to carry the data, which is encrypted. The carrier network will see the packets of data which it routes. To the users of the VPN, it will look like the computers were directly connected to each other.

The VPN model can guarantee the following:

  • Confidentiality: The carrier network will route the data, but it will be unable to decrypt it.
  • Sender authentication: People need to authenticate themselves, to be able to use the network.
  • Message integrity: Messages transported across the network cannot be changed easily while they are in transport. When a message was changed, it is possible to detect this.

VPN Types:

There are two main types of VPN in popular use today:

IPsec VPN: IPsec is a set of protocols for security at the packet processing layer of network communication. An advantage of IPsec is that security arrangements can be handled without requiring changes to individual user computers.  IPsec provides two choices of security service: Authentication Header (AH), which essentially allows authentication of the sender of data, and Encapsulating Security Payload (ESP), which supports both authentication of the sender and encryption of data as well. The specific information associated with each of these services is inserted into the packet in a header that follows the IP packet header.

SSL VPN: Secure Socket Layer (SSL) is a protocol for managing the security of a message transmission on the Internet, usually by HTTPS. SSL uses a program layer located between the Internet’s Hypertext Transfer Protocol (HTTP) and Transport Control Protocol (TCP) layers. SSL uses the public-and-private key encryption system from RSA, which also includes the use of a digital certificate. An SSL VPN uses SSL to secure the VPN tunnel.

  • Kazmarek Technologies Solutions is a SonicWall technology partner.
  • SonicWall is one of the world’s leading providers of firewalls and VPN technology to small and medium sized businesses globally.

For more questions related to VPN’s, firewalls, or other security advice
and strategy for your business, please contact us at:
Phone: 858-952-5400 x0
Email: support@kazmarek.com 

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“We’re building a solid IT foundation to be able to go where we need to be for growth and success. I couldn’t be more pleased with KTS’s performance and progress on our IT Projects.”

Shawn Ellis, CFO Custom Logos

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“Both company email migrations have were completed without a problem. Thanks to your team both transitions went smooth.Everyone with your group are both knowledgeable and professional, and you should be proud of the organization you are building.”

John Sonnen, IT & Security Director Child Safety Network

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“We have been using KTS for our IT support for about a year now, and we are very pleased with the service we have received. Chris has been our first line person, and has been able to resolve issues quickly, and often remotely, which helps reduce costs. Our staff has really appreciated his fast response and resolution to the issues that have come up. We have also appreciated that there are other folks at KTS who can fill in if Chris is out. Thanks to all!”

Suzy Halleland, Executive Administrator Village Church

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“I think you know we have been very happy with your service and are very grateful to have been referred to you guys. But on a more personal note, I want you to know that Kevin in your office has provided a service for us that is way over the top.”

Jeff Golumbuk, CEO Custom Logos

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“I just wanted to thank you and your staff for the excellent service and work provided by KTS.  It has been night and day compared to our old third party IT consultant.”
Nick Walters, VP Project Management West Coast General Corp.

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“I wanted to let you know that I am absolutely delighted with the service we have received from you and your team so far. I know we put you in a tough position with such short notice of having to jump in and take over, and we really appreciated that. But there are many other reasons as well. First, I’m so glad they discovered the hard drive problem right away, as that could have caused us a huge issue as you well know. Second, everyone that I’ve had the pleasure to work wi… Read more
Jo Barsa, CPA Barsa & Company

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“Our company had a recent office relocation. The transition could never have been as smooth without the support of KTS! You guys were awesome!”
Greg Garner, President San Diego Credit Association

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“Kazmarek is fantastic!  I’ve used every size of IT company over the past 20 years and Kazmarek is by far superior to all I’ve used.  We are extremely happy with their service and expertise.  One of the things I like most about them is that they have engineers available to respond to our prioritized needs but they also wanted to give us the best customer service possible so they went above and beyond and put in place an escalation plan so that if I feel the response time is … Read more
Marisa Janine-Page, Partner Caldarelli Hejmanowski Page & Leer LLP

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