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How ASLR protects Linux systems from buffer overflow attacks

ASLR is a memory exploitation mitigation technique used on both Linux and Windows systems. Learn how to tell if it's running, enable/disable it, and get a view of how it works.

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Linux commands for measuring disk activity

Linux distributions provide quite a few useful commands for gauging disk activity. In this post, we'll look at some handy commands and useful options.

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Open-source containers move toward high-performance computing

Thanks to the efforts of Sylabs, open-source containers are starting to focus on high-performance computing—providing new ways of working for enterprise IT organizations.


Working with tarballs on Linux

Learn how to create tarballs on Linux systems to back up and manage group files on Linux system.

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How Java has stood the test of time

Java has been one of the top two programming languages for the past 10 years. How has it stood the test of time? Good design and continuous innovation have a lot to do with it.

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Using the Linux ss command to examine network and socket connections

The Linux ss command replaces the older netstat and makes a lot of information about network connections available for you to easily examine.

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Linux will seem to be everywhere in 2019

Faster, more versatile and secure, Linux gets better every year. Let's take a look at some of the highlights expected in 2019.


Selectively deploying your superpowers on Linux

The sudo command allows privileged users to run all or selected commands as root, but understanding how it works and doesn't work is a big help.


RHEL 8 Beta arrives with application streams and more

In the four years since the introduction of Red Hat Enterprise Linux (RHEL) 7, the IT world has evolved. RHEL 8 Beta brings innovation and dozens of new features.

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The future of Red Hat: How will IBM's acquisition affect the company?

IBM's purchase of Red Hat may be a good strategic fit for IBM, but the payback is anything but guaranteed.

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Latest supercomputer runs Red Hat Enterprise Linux (RHEL)

Sierra -- the newest supercomputer and the second-fastest in the world -- runs Red Hat Enterprise Linux (RHEL), which isn't surprising given the role Linux plays in supercomputing in general.

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IBM-Red Hat deal: What the companies say

IBM says Red Hat will continue to be a contributor to the open-source community and that Red Hat will continue its commitments with current partners even after IBM buys the company for 34 billion in the second half of 2019.

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Ubuntu's Cosmic Cuttlefish brings performance improvements and more

The latest and greatest release of Canonical's Ubuntu, nicknamed "Cosmic Cuttlefish" became available just recently. Images are available for all major public clouds. In addition, it provides improved gaming performance, a huge array...


Using nmap on your home network

While nmap is generally used to probe business networks and perform security reviews, the tool can also provide interesting details on your systems and devices at home.

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Red Hat underpins the growing importance of Linux and open source

Red Hat's new vice president and general manager of its RHEL Business Unit, Stefanie Chiras, enthusiastically embraces the growing importance of Linux.

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Making better use of your Linux logs

Log files on Linux can provide a lot of useful information on what's happening on your system. These commands can help you sort through the data and pinpoint problems.

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The future of networking: Open source networking is the 'new norm'

Open source networking has become the "new norm," and many at the recent Open Networking Summit Europe said they’re seeing it play out in the industry.

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Cisco unearths 13 'High Impact' IOS vulnerabilities you need to patch now

Cisco has exposed 13 vulnerabilities in its IOS and IOS XE switch and router operating software that the company said should be patched as soon as possible. The vulnerabilities were detailed in Cisco’s twice-yearly dump of IOS...

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Fedora Project announces availability of Fedora 29 beta

The Fedora 29 beta release is ready for downloading and testing, including new support for containers and better performance on Arm machines.

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Why Linux users should try Rust

Installing the Rust programming language on your Linux systems could turn out to be one of the more rewarding things you've done in years.

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