Malware is becoming more and more common for macOS. I wanted to make sure file I downloaded files such as an ISO image or firmware are safe before install on my system. How do I […]
I want to restrict both normal users and root user inside LXD container “hypervisor” from viewing and using dmesg command output. How do I prevent non-root (unprivileged) Linux users from viewing the Linux kernel’s log […]
My Debian/Ubuntu/CentOS Linux server using KVM as a hypervisor. I would like to forward ports to guests VM with UFW iptables. How do I forward ports on a Linux server running libvirt/KVM to specified ports […]
How do I run commands in parallel in a bash shell script running under Linux or Unix-like operating system? How can I run multiple programs in parallel from a bash script? You have various options […]
Freelance web designers are often asked to provide clients with a wide array of services. Design, custom development, mobile applications, SEO and social media management all come to mind. And, while some designers do attempt to wear these many hats, it can be quite difficult to master them all. There’s enough depth within each one to support a more segmented industry.
I run a couple of OpenBSD and FreeBSD guest/virtual machines under KVM. My server has 32GB ram and 4C/8T Intel Xeon CPU. Everything was working fine until recent CentOS Linux 7 kernel update. After a […]
How do I Install PHP 7.2 on CentOS 7 server? How can I setup and install PHP 7.2 on RHEL 7 server along with Nginx web server? How do I configure PHP-fpm version 7.2 with […]
How do I check free and used memory on Debian Linux system using the command line option? Random Access Memory (RAM) is the memory in the computer that is used to store running process and […]
We’ve all looked at our to-do lists and sighed in despair at how many items were still waiting for us to finish. Sometimes it can even seem overwhelming; we’ve got so much to finish, and it seems as though the days are shrinking in length, as there never seems to be enough time to get to everything. The good news is that there are several ways to regain control of your time.
How do I list a KVM vm guest using virsh command on a Linux based hypervisor? A hypervisor is nothing but Linux kernel module that isolates operating systems and applications from the underlying server. KVM […]
With the power of HTML5 and the ease adding multimedia through technologies such as WordPress oEmbed, anyone can add compelling video or audio content to their website. And, while it’s great that default media players are included from a purely functional standpoint, so much more can be done to improve the user experience.
I use ansible-playbook to update my VMs and bare metal servers hosted in a remote data center. How do I tell, whether the Ubuntu or Debian Linux server requires a reboot using the command line […]
I know how to setup LXD on a Debian or Ubuntu Linux. How do I install, configure and setup LXD on CentOS Linux 7.x?Introduction: Linux containers give an environment as close as possible as the […]
While I feel very fortunate to have the means to take a modest family vacation most summers, I often have mixed feelings about going (a true first-world problem). If things are busy, I’m wary of falling behind. And, even if business has slowed down, the thought of some sort of work disaster occurring while I’m out is always in the back of my mind. And those worries aren’t without precedent.
Here’s a scenario for you. You’re out with your friends, and you’re getting hungry. The members of your group start suggesting places where you can go and grab some dinner. There are a lot of eclectic suggestions being thrown about – Chinese, Mexican, Thai, Greek – and none of you is sure what you’re going to choose. Here’s one thing you probably won’t do, however: go to an “all-purpose” restaurant which serves all of the above types of food, plus about 10 more.