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How to enforce password complexity on Linux

Linux gives you lots of ways to create complexity in passwords that include a lot more than just length, such as mixing upper- and lower-case letters with numerals and punctuation marks along with other restrictions.

By Sandra Henry Stocker
Oct 19, 2020 14 mins
Endpoint Protection Open Source Operating Systems
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How to use the tar command: 2-Minute Linux Tips

In this Linux tip, learn how to use the tar command. It’s used to create (and extract contents from) file archives. The name “tar” stands for “tape archive” though “tape” is rarely part of the equation anymore.

Oct 16, 2020 3 mins
Operating Systems
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how-to

How to download and play YouTube and other videos on Linux

The youtube-dl tool makes it very easy to download both webm and mp4 files on Linux systems. You just need the tool and the right URLs.

By Sandra Henry Stocker
Oct 13, 2020 3 mins
Operating Systems
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How to use the lscpu command: 2-Minute Linux Tips

In this Linux tip, we’re going to look at the lscpu command that provides a lot of information on your system’s CPU or CPUs.

Oct 2, 2020 2 mins
Operating Systems
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how-to

Navigating your Linux files with ranger

Ranger is a great tool for providing a multi-level view of your Linux files and allowing you to both browse and make changes using arrow keys and some handy commands.

By Sandra Henry Stocker
Oct 1, 2020 5 mins
Operating Systems
how-to

Recovering deleted files on Linux with testdisk

This post describes testdisk, one of the tools that comes in handy for recovering recently deleted files (along with fixing partitions in other ways).

By Sandra Henry Stocker
Sep 30, 2020 7 mins
Operating Systems
how-to

How to view information on your Linux devices with lshw

The lshw (list hardware) command on Linux systems provides a lot more information on system devices than most of us might imagine is available.

By Sandra Henry Stocker
Sep 28, 2020 6 mins
Operating Systems
news analysis

Government cybersecurity agency warns of Windows Server exploit

Rare warning from CISA instructs government agencies to patch a vulnerability in a core authentication component of Active Directory from Windows Server 2008 to Windows Server 2019.

By Andy Patrizio
Sep 25, 2020 2 mins
Operating Systems Security
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How to use the unset command: 2-Minute Linux Tips

In this Linux tip, learn how to use the unset command. It’s a command that removes an environment variable from your current login session.

Sep 25, 2020 3 mins
Operating Systems
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How to use the look command: 2-Minute Linux Tips

In this Linux tip, learn how to use the look command. It allows you to easily pick out lines that begin with a given string from a file that you specify. The look command only matches beginnings of lines and doesn’t work with wild cards. For more c...

Sep 18, 2020 2 mins
Operating Systems
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