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Brandon Lee
  • Brandon Lee
  • April 30, 2024

Windows 11 Security Features in 2024

Concerned about cyber threats? Discover the latest in digital security with Windows 11.
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Didier Van Hoye
  • Didier Van Hoye
  • October 18, 2022

Mutual TLS (mTLS) or client certificate authentication with an Azure Application Gateway and an App Service application

Mutual Transport Layer Security (mTLS) in Azure Application Gateway and Application Servers / Web App is a mandatory modern security layer. It allows the server and the client to mutually identify each other’s identity and credibility to enhance cybersecurity. But what it is exactly, what does it do and how does it help your IT security?
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Didier Van Hoye
  • Didier Van Hoye
  • June 30, 2021

QUIC, HURRY UP!

Windows Server 2022 will see various novelties. Among others, it will push its QUIC, TLS 1.3, HTTP/3, and SMB 3.1.1 protocols as new standards. QUIC, specifically, is presented as an alternative to TCP and is often dubbed “TCP/2.” But are these protocols worth being standardized? And what are the challenges?
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Didier Van Hoye
  • Didier Van Hoye
  • April 9, 2020

A highly available SMTP relay solution – Part II

In the previous part, the article focused on the design of HA SMTP relay solutions. It also outlined the steps you should take to correctly prepare for setting up. In this part, you will get the detailed step-by-step guide on how to actually set up the solution without any trouble. The process is cumbersome but manageable.
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Didier Van Hoye
  • Didier Van Hoye
  • December 19, 2019

How to Re-Encrypt Multiple SNIs on the same IP and port with a Kemp LoadMaster – PART 2

In Part I of this article, we discussed how to handle multiple SSL sites sharing the same IP address and port bound to multiple SSL certificates in regards to SNI decryption and re-encryption with Kemp LoadMaster. We discussed briefly how to achieve this creatively. With Kemp LoadMaster, you will need to leverage sub-virtual services (SubVSs) in combination with content rules to handle this scenario. We also use SSL decryption and re-encryption in order to support the clients and servers with different TLS versions. Re-encryption is handled at the virtual service (VS) level, not at the SubVS level. Meaning you can only enter one SNI name for re-encryption with a shared VIP. So, in the case of two or more SSL sites sharing the same IP address, you would have only one that works.
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Didier Van Hoye
  • Didier Van Hoye
  • December 18, 2019

How to Re-Encrypt Multiple SNIs on the Same IP and Port with Kemp LoadMaster – PART 1

As you all know by now, it really is time to say goodbye to TLS 1.0/1.1. You might be ready to only offer and support TLS 1.2. Perhaps you can even add TLS 1.3 as well. Being able and willing to block TLS 1.0/1.1 is a good thing completely. Well done.
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Oksana Zybinskaya
  • Oksana Zybinskaya
  • March 7, 2016

HTTPS sites are threatened by a new low-cost decipher attack

A new low-cost attack that decrypts sensitive communications in neglectable time has been discovered recently. The attack works against TLS-protected communications using RSA cryptosystem which expose the key through SSLv2, which was retired two decades ago due to vulnerabilities, but still may be supported by some service due to legacy compatibility reasons or misconfigured TLS implementations.  
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