Advice for everyday Unix systems administration and some clever ways to approach more challenging problems.
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
Ransomware is getting much more sophisticated and costly. Here's a look at what has changed and what you should be thinking about right now.
Put all the commands you need for extracting from archives in a script and you'll never find yourself scrambling for the right syntax
Easy ways to keep petty differences from spoiling your day
The pros and cons of periodic password changes -- the things we need to consider.
Some ideas on how to celebrate
What do sysadmins wish for as their special day approaches?
Useful things that you can do on the command line with xargs
Linux reaches the age of 25 with more than ten times that number of distributions to date. Can any of us wrap our brains around where it has gone and what it has become?
Attributes of jobs that are worth loving
Brace expansion is one of the features of bash that is either never used or is one of its users favorite commands. The difference likely lies in unraveling the syntax just enough to understand how it works.
Unix aliases are generally extremely helpful, but watch out -- they can be used for mischievous ends.
You can't change history, but you can change the way it's displayed
Have you ever wanted to display messages on your screen so that you could read them standing on your head? Of course not, but you can!
Converting numbers to different numeric bases is easy on the Unix command line. Just learn a little syntax or stash your conversion commands in a script.
There's a Linux command that can help repair mistakes in the commands you type. Just don't say its name where your boss or customers can hear you.
Your mom's lessons may well be behind the things you do today to manage your servers
A bundle of ebooks that will sharpen your hacking skills -- at almost any price you care to pay!
You can do a lot more with your command line font colors than turn them on and off. How about picking your own colors? How about customizing your prompt so that it balks when you make a mistake?
If you haven't examined all the lines in the ifconfig output, you might find that there's more data there than you expected.
When a script is passed a file name as an argument, how can you tell if it's relative or absolute?
The top command's many options allow you to be creative when you're looking into system performance