We’re all familiar with top, a real-time system monitor. Some prefer htop and previously, I mentioned iotop for use with storage read/write monitoring. Let’s looks at another popular tool for Linux server performance analysis: atop. Advantages of atop Atop is an ASCII full-screen performance monitor which can log and report the activity of all server processes. […]
htop: Quick Guide & Customization
September 13, 2021 by Hayden James, in Blog Linuxhtop is an interactive system monitor, but also a process-viewer, process-manager, strace tool and more. Sysadmins may opt to use htop when Unix top does not provide enough information about system processes. htop uses a cursor-controlled interface for sending signals to processes. One example where this comes in handy is: you don’t have to type […]
Free vs. Available Memory in Linux
September 7, 2021 by Hayden James, in Blog LinuxAt times we will need to know precisely how our Linux systems use memory. This article will examine how to use the free command-line utility to view memory usage on a Linux system. In doing so, we will clearly define the difference between free vs. available memory on Linux systems. Free vs. Available memory […]
Best Linux Distros in 2022 for Beginner, Experienced and Expert users.
September 2, 2021 by Hayden James, in Blog LinuxAre you searching for the best Linux distro (distribution) for your desktop computer or laptop to take you into 2022? This article will guide you to what I believe are the best Linux distros for beginner, experienced, and expert users. Whether you are a power user or just getting your feet wet, there are indeed […]
90 Linux Commands frequently used by Linux Sysadmins
August 30, 2021 by Hayden James, in Blog LinuxThere are well over 100 Unix commands shared by the Linux kernel and other Unix-like operating systems. If you are interested in the commands frequently used by Linux sysadmins and power users, you’ve come to the place. Recently, I published a five-part series covering commands often used by Linux sysadmins. Below I’ve listed the 90 […]
Linux Commands frequently used by Linux Sysadmins – Part 5
August 30, 2021 by Hayden James, in Blog LinuxThis is the final part of the five-part series entitled: Linux Commands frequently used by Linux Sysadmins. So far, we’ve covered over 50 commands regularly used by Linux sysadmins and power users. Refer to part 1, part 2, part 3, and part 4. This article will look into another set of commands and command-line tools […]
Linux Commands frequently used by Linux Sysadmins – Part 4
August 30, 2021 by Hayden James, in Blog LinuxWe are now up to part 4 of this five-part series entitled: Linux Commands frequently used by Linux Sysadmins. By the end of this series, we will cover at least 50 commands. Thus far, we touched on around 60 commands often used by Linux Sysadmins and power users. Refer also to part 1, part 2, […]
Linux Commands frequently used by Linux Sysadmins – Part 3
August 30, 2021 by Hayden James, in Blog LinuxLast week and the week before, I published part 1 and part 2 of this five-part series entitled: Linux Commands frequently used by Linux Sysadmins. Those two articles took us a bit deeper into what I believe are around 50 to 100 commands often used by Linux Sysadmins and power users. Also, see Part 4 and Part 5. […]
Linux Commands frequently used by Linux Sysadmins – Part 2
August 30, 2021 by Hayden James, in Blog LinuxLast week, I published part 1 of this five-part series entitled: Linux Commands frequently used by Linux Sysadmins. That first article scratched the surface of what I believe are 50 to 100 commands used often by Linux Sysadmins and power users. Also, see Part 3, Part 4, and Part 5. Let’s jump into another set of commands and command-line […]
Home Lab Beginners guide – Hardware
August 19, 2021 by Hayden James, in Blog LinuxUntil recently, and for well over the past decade, my wife and I have been nomads. Moving from the Caribbean to Miami, New York, Las Vegas, Vancouver, and now back home. This has meant that for many of those years, my home office basically comprised of a few laptops and screens. These days, we are more […]
PHP memory_limit – understanding and increasing this setting
August 19, 2021 by Hayden James, in Blog LinuxPHP memory_limit is per-script, just as a highway’s speed limit is per-vehicle. For example, although PHP’s memory limit may be set high to 1GB, that does not mean that scripts will pile up to use that 1GB. Let’s take a quick look at understanding PHP’s memory_limit setting. PHP memory_limit is a per-script setting PHP.net’s […]