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Home Archives for Uncategorized
TLS 1.3 and its implications for cyber security

Cloud Insidr 2018-10-04 Leave a Comment

TLS 1.3 and its implications for cyber security

The rise of Quantum computing and the cloud is rewriting the rules of what constitutes “encrypted” communications — with profound implications for the cyber security of our homeland.

“The cyber threat landscape is shifting in real-time, and we have reached a historic turning point,” said Kirstjen Nielsen, U.S. Secretary of Homeland Security, in a recent statement. “It is clear that our cyber adversaries can now threaten the very fabric of our republic itself.”

Cybersecurity incidents and data breaches of recent years seem to provide evidence of an invisible warfare raging across the industrialized world with financial, energy and communications systems covertly under constant threat. At the same time, the dependence on data integrity and the reliability of critical infrastructures, particularly cyber physical systems in the military, is growing in importance by the day.

[Read more…]

Filed Under: encryption, homeland security, Uncategorized

How to upgrade the Linux kernel in Fedora 28/29 quickly and easily

Cloud Insidr 2018-06-17 Leave a Comment

How to upgrade the Linux kernel in Fedora 28/29 quickly and easily

As zero-day exploits become increasingly common, keeping the kernel up to date is a top priority.

In CentOS 6.x/7.x and RHEL 6x./7.x, upgrading the Linux Kernel is a painful procedure which requires about a dozen steps. On Fedora, all it takes is a time-saving two-liner. You don’t need to concern yourself with the configuration of the grub boot manager, which is a frequent source of trouble on CentOS and RHEL.

[Read more…]

Filed Under: Linux, Uncategorized Tagged With: CentOS, Fedora, Fedora 28, Linux, Linux Kernel, RHEL, upgrade

The U.S. is back to #1! – Summit, the fastest supercomputer in the world was engineered with smarts… here is why

Cloud Insidr 2018-06-13 Leave a Comment

The U.S. is back to #1! – Summit, the fastest supercomputer in the world was engineered with smarts… here is why

The world’s fastest supercomputer is American again. President Donald Trump’s dedication to #MAGA (Making America Great Again) is showing results big time. Chief among them are the Tax Cut and Jobs Act (2017-2018), a booming economy and a growing stock market.

But economic prosperity also needs military might and IT technology that’s worthy of a superpower.

During the sad 8 years of the Obama presidency, the U.S. has ceded the #1 and #2 titles in the TOP500 super computers list to China.

That’s over.

[Read more…]

Filed Under: Uncategorized Tagged With: #1 on the TOP500 super computer list, IBM, Mellanox, NVIDIA, Oak Ridge National Laboratories, Summit, US Department of Energy

Attack vectors against TLS, implementation bugs, and how to mitigate TLS vulnerabilities in NGINX

Cloud Insidr 2018-05-21 Leave a Comment

Attack vectors against TLS, implementation bugs, and how to mitigate TLS vulnerabilities in NGINX

In light of documented TLS vulnerabilities and implementation bugs, understanding known attack vectors becomes a necessity.

[Read more…]

Filed Under: cybersecurity and cyber warfare, encryption, Uncategorized Tagged With: certificate, cipher suites, cryptography, cybersecurity, Diffie-Hellman, encryption, exploits, HTTP/2, HTTPS, mitigation techniques, RSA, TLS, TLS vulnerabilities

TLS 1.3 (with AEAD) and TLS 1.2 cipher suites demystified: how to pick your ciphers wisely

Cloud Insidr 2018-05-11 Leave a Comment

TLS 1.3 (with AEAD) and TLS 1.2 cipher suites demystified: how to pick your ciphers wisely

Until the day TLS 1.3 becomes widely supported, web servers must rely on a fallback to TLS 1.2 with correctly configured server directives and strong cipher suites. Pick the wrong settings and you declare an open season on your server.

[Read more…]

Filed Under: cybersecurity and cyber warfare, encryption, Uncategorized Tagged With: authentication, cipher suites, Diffie-Hellman, encryption, HMAC, HTTPS, OpenSSL, RSA, TLS, TLS 1.2, TLS 1.3

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