Your application might be the most secure application ever written, but unbeknownst to you, the operating system is unintentionally working against your security. I’ve tested many applications that were otherwise securely written, but leaked clear text copies of confidential information into the operating system’s caches. From web caches that store web page data, to keyboard … Read more
The answer is really quite simple. Microsoft’s products are designed for maximum ease-of-use, which drives their rampant popularity. What many fail to grasp is that security is a zero-sum game: the easier it is to use something, the more time and effort must go into securing it. Think of security as a continuum between the … Read more
With a mobile device, the trade-off between security and convenience of use is more noticeable than that of a desktop machine with a full keyboard. The device’s smaller on-screen keyboard combined with its mobile form factor make unlocking it a productivity nightmare for an enterprise. As a mobile device, an average user will work in … Read more
Apple has incorporated four layers of security in iOS to protect the user and their data. Device Security Techniques to prevent an unauthorized individual from using the device Data Security Techniques to protect the data stored on the device, even if the device is stolen Network Security Tools to encrypt data while it is in … Read more
The ultimate labor-saving trick at the command-line is brace expansion. Put simply, anything within braces ({}) is substituted within the specified filename. The following will create new directories called PhotosGermany, PhotosEngland, and PhotosSpain: mkdir Photos{Germany,England,Spain} In other words, the mkdir command takes the word Photos and combines it with Germany, England, and Spain, creating three … Read more
Install Let’s Encrypt to Create SSL Certificates What is Let’s Encrypt Let’s Encrypt is an SSL certificate authority managed by the Internet Security Research Group (ISRG). It utilizes the Automated Certificate Management Environment (ACME) to automatically deploy free SSL certificates that are trusted by nearly all major browsers. Start Downloading and installing Let’s Encrypt Download and Install Let’s … Read more
In terms of the control over your system offered by keyboard commands, pressing Ctrl+Z has the effect of stopping the current program. It suspends the program until you switch back into it or tell it to resume in another way, or manually kill it. In the same style, pressing Ctrl+C while a program is running … Read more
lists the most common keyboard shortcuts in BASH (there are many more; see BASH’s man page for details). If you’ve explored the Emacs text editor, you might find these shortcuts familiar. Such keyboard shortcuts are largely the same across many of the software packages that originate from the GNU Project. Often, you’ll find an option within … Read more
The amount of use the Linux shell sees is highly dependent on the user. Some Linux buffs couldn’t manage without it. They use it to read and compose e-mail, and even to browse the Web (usually using mutt and the elinks program, respectively). However, most people simply use it to manage files, view text files … Read more
You might have followed the instructions in this book and consider yourself an expert in Linux. But the real measure of a Linux user comes from your abilities at the shell. Most modern Linux distributions prefer you to use the GUI to do nearly everything. To this end, they provide GUI tools for just about … Read more