Not that long ago it was simple enough to spin up a system with a CD or USB load of DBAN or some other utility to perform a data wipe on a system. With the increasing prevalence of Solid State media these methods have needed to change.
There are so many ways to slice, dice, parse, and of course search through files in Linux. This is but one of those ways. What makes this method fancy is that it we go from finding and printing contents of all the files found to listing the columns related to Read more…
So you’re facing a system or security audit and you need to quickly print a list of accounts for the auditor as well as their statuses. Depending on your setup, this could be a trivial task. In other cases, especially with a passwd instance that doesn’t support the -a option, Read more…
When you run a removal command in Linux with the recursive and force options enabled (rm -rf *), you don't expect to get back a failure message. After all, YOU FORCED IT! However, it just so happens that even with force, you can encounter a situation where the list of Read more…
Every now and then there arises a need to send e-mail from a command prompt. In this case, the system is Red Hat Enterprise Linux and the desire is to have mailx send e-mail to a 3rd party, external system using a relay server. To do this, you need to Read more…
I needed to create a user, grant them super user sudo privileges, update user account passwords and expire them across a number of different servers so that the actual user could log in and be forced to change their password to a (hopefully) secure one after I was complete. Initially, Read more…
I searched for a while to come up with a method for expanding swap in an online way thinking that it might now be possible given all kinds of disk and file system advances over the past few years. It's been a little bit since I've had to do this Read more…