PPTP vs L2TP vs OpenVPN vs SSTP vs IKEv2

With Edward Snowden’s shocking revelations that the NSA has for years been working to crack and subvert VPN encryption technologies, together with the fact that it is becoming increasingly obvious that most such technologies have been developed and certified by the US government’s National Institute of Standards and Technology (NIST), may therefore be considered suspect.

WiFi and Networking Tutorial

With AV, security, and home automation systems all running over IP networks, professional installers have a tremendous opportunity to grow their businesses by offering networking solutions.  While installing an IP network can be a daunting  task for the uninitiated, by understanding the purpose and function of a few key components—as well as what to look for when selecting those components—a professional installer can easily learn to deliver reliable and powerful IP networking solutions.  With this in mind, as a professional installer, the primary components with which you should become familiar are as follows:

SSTP Windows VPN Client Error: The revocation function was unable to check revocation

If you are deploying SSTP VPN for Windows clients and get the error: “The revocation function was unable to check revocation because the revocation server was offline.”, you are most likely using your own internal PKI and the certificate used for SSTP does not have a Certificate Revocation List (CRL) accessible from the outside, so the client machine is failing checking whether or not the certificate has been revoked from the CA. If you simply want to bypass this, you can edit the registry on the client:

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