Server
5 reasons why you should develop a Linux container strategy
Submitted by Rianne Schestowitz on Friday 15th of January 2021 11:08:34 AM Filed under

Containerization has gained in popularity over the past few years. However, the subject still remains elusive for some. There are many different opinions revolving around this architectural paradigm, spanning from "containers are just a way to obfuscate bad code" to "you are a dinosaur if your entire infrastructure isn't already containerized."
If you have one of these strong opinions, this post probably is not for you. The following is for those who have not had the time nor bandwidth to research the topic and are not sure how the architecture might help within their organization. In this article, I give a simple explanation of some of the advantages of adopting a container strategy within your infrastructure and give you some quick and simple tips to get started. There are, in fact, many advantages of containerization within your infrastructure, both from a technical perspective and the development lifecycle perspective.
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YunoHost 4.1 Release Makes DIY Self-Hosting Even More Simple
Submitted by Roy Schestowitz on Thursday 14th of January 2021 06:24:15 AM Filed under

If you don’t know what YunoHost is, it is a Debian-based operating system that aims to make self-hosting easy by simplifying the administration of the server and letting you easily deploy apps/services.
Initially, it was developed by “Kload” but when interest around YunoHost and self-hosting started growing, more people joined in as volunteers and since then, they have been developing and maintaining the operating system.
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Facebook, Twitter Proposing CentOS Hyperscale SIG With Newer Packages + Other Changes
Submitted by Roy Schestowitz on Tuesday 12th of January 2021 05:24:33 AM Filed under

Adding to the changes abound at CentOS beyond CentOS 8 going EOL at year's end to focus instead on CentOS Stream feeding into the future RHEL, the likes of Facebook and Twitter are now proposing a Hyperscale special interest group for this RHEL-based platform.
The Hyperscale SIG will be focused on catering the Linux distribution usage to large-scale infrastructures like those used at Facebook, Twitter, and other "hyperscaler" organizations like cloud providers.
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CentOS vs Ubuntu: Server distributions compared
Submitted by Rianne Schestowitz on Thursday 7th of January 2021 04:16:59 PM Filed under


The main differences between the two main Linux distributions (free) in the server field: CentOS and Ubuntu. Here’s how to choose.
Anyone who has to choose a Linux distribution for their private server, virtual or dedicated, has practically an unlimited number of options. This is due to the open source nature of the penguin operating system, which allows anyone with the appropriate skills to create their own “ad-hoc” distribution for the most varied needs.
It must be said, however, that there are few “de facto” standards today in the context of Linux servers. Taking a look at the free options, and therefore accessible to practically everyone, the two dominant distributions are CentOS VPS and Ubuntu VPS. In this article we will see, briefly, what are the main characteristics that differentiate these two distributions, and in which cases it is better to choose one rather than the other. It should be clarified right away, however, that both are valid solutions, widely used precisely because they are excellent.
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16 Free open-source email servers for enterprise and individuals
Submitted by Roy Schestowitz on Tuesday 5th of January 2021 03:33:24 AM Filed under
A mail server is a software package that regulate sending and receiving emails using email protocols over the internet.
Mostly, we are using several email services like Gmail, Outlook and ProtonMail. However, enterprise often require to use their infrastructure services.
Many users and companies tend to have their mail servers to own and maintain their data and keep everything in their control.
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19 Free open-source self-hosted Invoicing and billing solutions
Submitted by Roy Schestowitz on Monday 4th of January 2021 06:58:27 AM Filed under


In a dynamic business environment invoices are created regularly and require custom workflow according to the enterprise business process.
Invoice and order management solutions are built to manage billing and invoicing documents generally. Some of them manage orders and post-sale subscription billing.
Most of ERP (Enterprise Resources Planning) solutions include invoice, billing and order management features.
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Docker Alternative Container Tools in 2021
Submitted by Roy Schestowitz on Monday 4th of January 2021 02:03:20 AM Filed under


Docker is the most popular and widely used free and open-source container management system. Docker helps in building, deploying, and shipping software applications in an isolated environment; known as a container. A container contains the libraries, dependencies, and configurations required for the software package to run and work properly.
In the past, Docker has been the only go-to easy-to-use containerization technology. Many projects have come as Docker alternative and competitors in the market over the past few years. Some of the common Docker alternatives in the market are listed as follows.
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10 Linux System Administrators New Year’s Resolutions for 2021
Submitted by Rianne Schestowitz on Tuesday 29th of December 2020 05:42:29 AM Filed under


It is a time to make our New Year’s resolutions. Regardless of your experience level as a Linux system administrator, we think it is worth and well to set goals for growth for the next 12 months.
In case you are out of ideas, in this post we will share 10 simple professional resolutions that you may want to consider for 2021.
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2020 Time Zone Database (tzdata) changes
Submitted by Roy Schestowitz on Friday 25th of December 2020 10:12:56 AM Filed under

Daylight saving time transitions, a zone name change, and the removal of some obsolete files: These are some of the changes that occurred in the Time Zone Database (tzdata) package that provides Red Hat Enterprise Linux (RHEL) and applications with time zone information.
The GNU C Library (glibc) makes use of the tzdata package in order to make APIs such as strftime() work correctly, while applications such as /usr/bin/date make use of this information to print the local date. The tzdata package contains the data files documenting both current and historic transitions for various time zones around the world. This data represents changes required by local government bodies or by time zone boundary changes, as well as changes to UTC offsets and daylight saving time (DST).
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IBM/Red Hat/Fedora, Oracle, and Servers
Submitted by Roy Schestowitz on Wednesday 23rd of December 2020 04:21:11 AM Filed under

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Red Hat unveils common Kubernetes platform for Windows and Linux
Red Hat has announced the general availability of its common Kubernetes foundation for Windows and Linux container workloads: Red Hat OpenShift Support for Windows Containers.
Containers allow organizations to package and run Windows and Linux applications on-premises and in the cloud. With Red Hat’s new service, enterprises can simultaneously manage Linux and Windows-based containerized workloads, eliminating the need for parallel software processing across hybrid cloud environments.
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Six courses to build your technology skills in 2021
The new year is a great time to be thinking about your career and where you want to take it. Why not take advantage of the opportunity to learn new sought-after skills with IBM courses? You can enroll free of charge, work at the time and pace that’s right for you, and open up brand new career opportunities in 2021.
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Oracle Linux 8: Oracle VM VirtualBox made easy with short training videos
A popular tool for developers and users creating cloud and local applications without the overhead of using a full server environment, Oracle VM VirtualBox runs on standard x86 desktop and laptop computers. It allows users to set up multi-platform virtual machine environments for software development, testing, and general purpose operating system (OS) virtualization, with optional runtime encryption. Software engineers can develop for cloud native environments from within Oracle VM VirtualBox VMs directly on their Windows, Mac OS, Linux, and Oracle Solaris machines, making it easier to create multi-tier applications with just a standard laptop.
Oracle VM VirtualBox also enables users to create and update virtual machines locally, including the OS and applications, and then package them into an industry standard file format for easy distribution and cloud deployment in conjunction with Oracle Linux KVM, or other server virtualization solutions. Oracle VM VirtualBox allows users to run nearly any standard x86 OS hosting applications that are not available natively on their systems.
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Fedora 34 Planning To Make Use Of Systemd-OOMD To Improve Low Memory Experience - Phoronix
At the end of November systemd 247 released with the new Out-of-Memory Daemon (systemd-oomd) and for the Fedora 34 release next year that will likely be enabled by default for all spins.
Systemd-OOMD aims to improve the Linux low-memory / OoM experience and is based on code originally written by Facebook for their Linux servers and then adapted for Linux desktop memory pressure scenarios. Systemd-OOMD allows monitoring for resource contention and can kill opt-in processes when the memory/SWAP pressure is above a predefined threshold.
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IBM To Acquire Finnish Cloud Firm Nordcloud
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MontaVista Enhances MVShield For CentOS Service
MontaVista Software LLC is renewing its commitment to providing MVShield for CentOS Service for both existing and new customers interested in securing high-quality support and maintenance services for their products and platforms on long-term maintained CentOS minor releases.
Despite the recently announced change in the CentOS Project’s strategy to focus future development on the CentOS Stream at the end of 2021, MontaVista will continue to provide long-term branch maintenance services uninterrupted and unchanged.
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10 lessons from sysadmins adapting to change in 2020
While 2020 will certainly be remembered for elections, protests, and most of all, the COVID-19 pandemic, a lot of other things changed in 2020, including a whole lot of cool changes in technology. Through it all, we could count on system administrators to do what they do best. Perhaps more so than ever, as we all moved from physical offices to working from home. We generated more load than ever on our infrastructure as more users relied on virtual private networks and videoconference tools to get their daily work done.
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A Custom Kubernetes Scheduler to Orchestrate Highly Available Applications
As long as you're willing to follow the rules, deploying on Kubernetes and air travel can be quite pleasant. More often than not, things will "just work". However, if one is interested in travelling with an alligator that must remain alive or scaling a database that must remain available, the situation is likely to become a bit more complicated. It may even be easier to build one's own plane or database for that matter. Travelling with reptiles aside, scaling a highly available stateful system is no trivial task.
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