Advice for everyday Unix systems administration and some clever ways to approach more challenging problems.
The Unix shell's && and || operators have some interesting and not-so-obvious behaviors.
The column command can reformat the output from various commands to make it more useful or appealing
Want a process to keep running even after you log off? No problem. Use nohup. It's easy.
Ready to make the Linux history command work harder to serve your needs? Let's look at some new tricks you might want to shove up your sleeve.
The jot command is very handy for generating lists of numbers or characters in almost any way you might imagine
NIST's new guidelines for password complexity have reversed many of rules on what defines a good password
With only one year until this business-changing regulation goes into effect, it's time for companies to start planning their approach. Let's run through eight steps you can take to be ready.
Password complexity settings on Linux systems is a lot more interesting -- and complex -- than it might appear.
Today's cyber and terrorist threats are getting worse and more frequent, but you can limit the damage and lessen the likelihood of a successful attack. What are those who deal these issues everyday trying to tell us and how can we put their insi....
How to get a clear view of network bandwidth usage on a Linux system.
Things to watch and tools to use to make sure your Unix/Linux systems maintain their health and vigor
The 3rd edition of this book will have you confidently using Wireshark to solve the kind of problems you're likely to run into. You'll be capturing and analyzing packets, understanding network protocols, and gaining important insights into ....
Symbolic and hard links can save both time and disk space. In this post, you will see how they are different and how they are created and used.
There are lots of ways to compare files on Unix systems and some of the choices are going to be just right for you
It's not quite as hard as it sometimes seems
Humble Bundle and No Starch Press have pulled together to offer a really sweet deal on digital books on Python.
Some tips for how to get started and how to stay on track for learning how to be a command line pro.
Some of the less obvious Linux commands might still come in very handy from time to time
The relatively new bash on Ubuntu on Windows brings some new possibilities to Windows users
A look at some of the exciting emerging technologies on display at last week's Mobile World Congress
What do art and Unix have in common?
There are even more ways to kill a process on a Unix/Linux system than there are ways to skin a cat.
Easy ways to pull together important and interesting stats on your running processes -- using the pgrep command
The everlastingly useful grep command can change its character with the flip of a switch to help you find things.
How false friends creep into your facebook community
A deep dive into penetration testing -- the choices made and some surprising findings
A great book for learning Python and building your own games
Ransomware without the ransom request? The recent attacks on hadoop are redefining what ransomeware is all about.
With tens of thousands of databases being held for hostage, it's time to focus on underlying problems and strategies.
Unix commands can help you get a feel for how your users are working and what's usual or unusual about their command line activities
Some useful tips and tricks to get 2017 off to a good start
A fun and easy way to become really good at using facebook -- even if you didn't grow up with the web.
Christmas songs with lyrics slightly altered to celebrate the OS we love
EMP and its potential consequences for data centers and life as we know it
Removing, moving, and renaming files with troublesome names and files extracted to the wrong location
Some handy tricks for using vi more effectively amd efficiently
How the umask setting works
101 very useful scripts along with everything you need to set them up and use them -- an extremely valuable book for anyone who wants to get a lot done on their Unix systems.
Finding the holes -- what penetration testing does, how it works, and one option that just might fit the bill for small companies
Colored file listings can make your work easier or drive you mad. Here's how to take control.
Some things to do today before the ghostly spirits go back into hiding
Stopping ransomware from accessing your files by using whitelisting.
Precautions to ponder during this special month -- with some help from the FBI
A hefty book that's going to teach you both programming and statistical analysis in less than 800 pages
Clever use of history commands to help you move faster on the Unix command line.
Managing password resets without making headlines
The lsof command has so many options that you may not be making good use of it. Let's look at ways that you can make it work better for you.
There's more to the lsof command than you might imagine. Check out all the ways that it can be used to help you with your troubleshooting.
Just about all you need to know about arguments in scripts and on the command line
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