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Graylog Monitoring Server on Ubuntu Linux for Monitoring Server/Services

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Server
Software
Ubuntu

Graylog is not a system monitoring tool; it’s a system monitoring server. I am sure; previously, you have been using tools to monitor your Linux system. The concept of Graylog is mind-blowing; it’s enormous. Have you thought before that you can install an entire server to monitor your system or services? Graylog offers you to monitor your small, medium, and big all types of systems and services. As you are going through this post, you will learn a lot about the Graylog monitoring server. Graylog will provide you every single detail that you might have wanted to know about your system. Installing and configuring the Graylog monitoring server is not much complex on Ubuntu and other Linux distributions.

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6 MongoDB GUIs that Shine

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Server
Software

MongoDB is a high performance, open source, non-relational NoSQL database written in C++. Here's the best MongoDB GUIs.

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Top five Vim plugins for sysadmins

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Development
Server
Software

Last year I wrote the article 5 useful Vim plugins for developers for Opensource.com. This article follows a similar idea but focuses on plugins that make sysadmins more productive, regardless of what scripting, programming language, or frameworks they use. There's another class of Vim plugins focused on code completion and syntax checking that are intentionally not covered in this article. They will be the topic for another post.

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Canonical Introducing HA MicroK8s

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Server
Ubuntu

     

  • Introducing HA MicroK8s, the ultra-reliable, minimal Kubernetes | Ubuntu

    Canonical today announced autonomous high availability (HA) clustering in MicroK8s, the lightweight Kubernetes. Already popular for IoT and developer workstations, MicroK8s now gains resilience for production workloads in cloud and server deployments.

    High availability is enabled automatically once three or more nodes are clustered, and the data store migrates automatically between nodes to maintain quorum in the event of a failure. “The autonomous HA MicroK8s delivers a zero-ops experience that is perfect for distributed micro clouds and busy administrators”, says Alex Chalkias, Product Manager at Canonical.

    Designed as a minimal conformant Kubernetes, MicroK8s installs and clusters with a single command.

  • Canonical introduces high-availability Micro-Kubernetes | ZDNet

    If you've been hiding under a rock -- and who could blame you these days? -- you may have missed how totally Kubernetes now dominates container orchestration. One way to quickly get up to speed on Kubernetes is with Canonical's  MicroK8s. This is an easy-to-run and install mini-version of Kubernetes. And now Canonical has added autonomous high availability (HA) clustering to it. 

    Seriously.

  • Canonical Announces HA MicroK8s

    MicroK8s, already popular for IoT and developer workstations, now gains resilience for production workloads in cloud and server deployments. Canonical has announced autonomous high availability (HA) clustering in MicroK8s, the lightweight Kubernetes.

GNU/Linux in HPC/Servers: Quobyte and CBeST

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GNU
Linux
Server

     

  • It Takes Geological Patience To Change Datacenter Storage

    Moving from an HPC center or a hyperscaler to work on enterprise software has to be a frustrating experience. In the HPC and hyperscaler world, when you need to deal with a problem, it is usually one of scale or performance – or both – and you have to solve the problem now. Like in a year or less, but sometimes you get more time to refine things. Call it 18 months, tops. The new platform – database, storage, network control, compute control, whatever it is – goes into production and months later replaces whatever was going to run out of gas just in time to save the company.

    The enterprise, into which we lump government and academic institutions, by contrast, move at a much slower pace because the risk profile is much higher. If your email or social network or media archive is down for minutes, hours, or even days, no one is going to die. But if an enterprise has an outage and either customer data is compromised or normal business is interrupted, reputation and money are on the line.

    [...]

    The first Quobyte release came in late 2014, a little more than a year after the company’s founding – see how fast these hyperscalers move? – and it was designed from the ground up to be a POSIX-compliant object storage system with file and block overlays when necessary, with triple redundancy of data running on absolutely plain vanilla X86 Linux servers.

  • PSSC Labs Announces CBeST Cluster Management Software Stack v5 Release with Red Hat Support - insideHPC

    Lake Forest, CA , Oct. 13, 2020 — PSSC Labs, a developer of high performance computing (HPC) and big data computing solutions, announces today that a new release of CBeST Cluster Management v 5.0 Software Stack will be available. The newest version of CBeST will add support for the latest Red Hat Enterprise Linux / CentOS Linux 8.0 operating system and provide enhanced support for advanced technologies from Intel, AMD and NVIDIA. CBeST will support bursting to cloud environments including Microsoft Azure, Amazon AWS and Google Compute.

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  • PSSC Labs Announces New CBeST Cluster Management Software Stack v5 Release

    The newest version of CBeST will add support for the latest Red Hat® Enterprise Linux® / CentOS Linux® 8.0 operating system and provide enhanced support for advanced technologies from Intel®, AMD® and NVIDIA®.

Server: Knative, eBPF, and Kubernetes Steering Committee Election Results

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Server
Google

     

  • Google Set to Unleash Knative - SDxCentral

    Google is set to give up most control over the Knative Project by electing a steering committee to oversee the direction of the Kubernetes-based serverless project. The decision comes on the heels of Google taking a more controversial approach with the Istio service mesh project.

    Protocol first reported on Google’s plans for the Knative Project late last week.

    In a blog post, Paul Morie, writing on behalf of the Knative Steering Committee, explained that it had recently constructed a new steering committee charter that will include an upcoming election for five steering committee members. The plan calls for the five members to serve as individuals and not representing their employer. The plan also states that no vendor will be allowed to have a majority of seats on the steering committee.

    The project will also set up a new Knative Trademark Committee to deal with trademark issues. That committee will initially include members from Google, IBM/Red Hat, and VMware.

  •    

  • Using eBPF Monitoring to Know What to Measure and Why - Container Journal

    eBPF enables users to trace application activity down to a very low level for better performance analysis

    Let’s say you’re a doctor. You know that the human body is tremendously complex, with multiple systems operating and interacting simultaneously. You also understand that sometimes things can go wrong and a person gets sick. Or there might be symptoms that history suggests are potential signs of trouble. How do you determine what is going on? What metrics can you collect that will reveal medically valuable information? And what tools are available to do that?

    The same issue that has challenged physicians for centuries is one that IT professionals now face: When you’re troubleshooting a complex system, what diagnostics do you measure, how do you measure them and what do you do with your findings?

    [...]

    eBPF programs run inside the kernel; they are attached to a code path and whenever that code path is traversed, the program executes. This decoupling of the kernel and eBPF program increases the development time as the developer doesn’t have to recompile the kernel each time the eBPF program is changed. eBPF is useful for both packet processing as well as performance analysis and monitoring, as eBPF programs can be attached to tracepoints, kprobes and even perf events. As you may have already guessed, attaching user-space programs inside the kernel can cause serious security and stability issues; thus, a series of tests are performed on each eBPF program before it’s loaded.

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  • Kubernetes Blog: Announcing the 2020 Steering Committee Election Results

    The 2020 Steering Committee Election is now complete. In 2019, the committee arrived at its final allocation of 7 seats, 3 of which were up for election in 2020. Incoming committee members serve a term of 2 years, and all members are elected by the Kubernetes Community.

    This community body is significant since it oversees the governance of the entire Kubernetes project. With that great power comes great responsibility. You can learn more about the steering committee’s role in their charter.

MariaDB 10.5.6 Release Notes

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Server
OSS

MariaDB 10.5 is the current stable series of MariaDB. It is an evolution of MariaDB 10.4 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL.

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Announcing the release of Oracle Linux 7 Update 9

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Server

Oracle is pleased to announce the general availability of Oracle Linux 7 Update 9, which includes Unbreakable Enterprise Kernel (UEK) Release 6 as the default kernel. Oracle Linux brings the latest open source innovations and business-critical performance and security optimizations for cloud and on-premises deployment. Oracle Linux maintains user space compatibility with Red Hat Enterprise Linux (RHEL), which is independent of the kernel version that underlies the operating system. Existing applications in user space will continue to run unmodified on Oracle Linux 7 Update 9 with UEK release 6 and no re-certifications are needed for applications already certified with Red Hat Enterprise Linux 7 or Oracle Linux 7.

Oracle Linux 7 Update 9 is available on 64-bit Arm (aarch64) and 64-bit AMD/Intel (x86-64) based systems. Oracle Linux 7 Update 9 ships with the following kernel packages, which include bug fixes, security fixes, and enhancements...

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PostgreSQL 13 Released!

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Server
OSS

  • PostgreSQL 13 Released!

    The PostgreSQL Global Development Group today announced the release of PostgreSQL 13, the latest version of the world’s most advanced open source database.

    PostgreSQL 13 includes significant improvements to its indexing and lookup system that benefit large databases, including space savings and performance gains for indexes, faster response times for queries that use aggregates or partitions, better query planning when using enhanced statistics, and more.

    Along with highly requested features like parallelized vacuuming and incremental sorting, PostgreSQL 13 provides a better data management experience for workloads big and small, with optimizations for daily administration, more conveniences for application developers, and security enhancements.

  • PostgreSQL 13 released

    Version 13 of the PostgreSQL database management system is out. "PostgreSQL 13 includes significant improvements to its indexing and lookup system that benefit large databases, including space savings and performance gains for indexes, faster response times for queries that use aggregates or partitions, better query planning when using enhanced statistics, and more. Along with highly requested features like parallelized vacuuming and incremental sorting, PostgreSQL 13 provides a better data management experience for workloads big and small, with optimizations for daily administration, more conveniences for application developers, and security enhancements."

  • PostgreSQL 13 Released With Performance Improvements

    PostgreSQL 13.0 is out this morning as the latest major update to this widely-used relational database server.

    There are many improvements to find with PostgreSQL 13.0 from better performance to helpful additions for database administrators. Among the PostgreSQL 13 highlights are:

    - Larger databases will find improvements to its indexing and lookup performance for indexes, faster response times for some queries, space savings, better query planning, and more.

Announcing Istio 1.6.10

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Server
Software

This release contains bug fixes to improve robustness. This release note describes what’s different between Istio 1.6.9 and Istio 1.6.10.

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More in Tux Machines

Videos/Shows: AppImages, Ubuntu Budgie 20.10, Vim Tabs, KDE Plasma 5.20

Pop!_OS 20.04 Review: The Best Ubuntu-based Distro!

The Linux distro world is getting better each day, thanks to developers’ immense dedication. The OS sure has come a long way from people calling it “Complex to use” to “User/Beginner Friendly.” One of the best beginner-friendly distros recommended by almost everyone is Ubuntu. Another distro that has recently taken the Linux universe by storm with its new release is Pop!_OS 20.04; it is developed by System 76, a company that manufactures Laptops and ships them with Linux. Pop!_OS is a distro based on Ubuntu that has gained popularity lately. After using it extensively for three weeks, it has now become one of my favorite distros of all time. Here’s my review of the same. Read more

today's howtos

  • How to install Zorin OS 15.3

    The latest release of Zorin OS has hit the internet. The new release is known as Zorin OS 15.3, and it is packed with the latest features and improvements. In this guide, we’ll show you how to install a fresh copy of Zorin OS 15.3! Please note that to use Zorin OS 15.3, you must have a computer with a decently fast CPU, at least 20 GB of hard drive storage, and at least 1 GB of RAM.

  • Introduction to using firewalld on Oracle Linux 8

    This video provides an introduction to using the firewalld utility. For additional videos on Oracle Linux check out oracle.com/goto/oraclelinuxlearning.

  • How to Install pip on Ubuntu 20.04 - RoseHosting

    We'll show you how to install the pip package manager for both Python 3 and Python 2 on an Ubuntu 20.04 VPS.

  • How To Install Nextcloud on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Nextcloud on Ubuntu 20.04 LTS. For those of you who didn’t know, Nextcloud is an open source self-hosted file sync and share application (Calendar, Contacts, Documents, Email, and more).

  • How to install and use Slimbook Battery Saver on Ubuntu | FOSS Linux

    Linux systems can be optimized into having longer battery usage, courtesy of Slimbook battery saver. Slimbook battery saver is an open-source tool which was created by the Slimbook hardware manufacturer (Manufactures and sells laptops running on Linux based operating systems). It is effective in GNOME, KDE, Cinnamon, Unity, and MATE desktop environment.

  • How to install LibreOffice 7 on Deepin 20 - YouTube

    In this video, we are looking at how to install LibreOffice 7 on Deepin 20.

  • How to install Atom Text Editor on a Chromebook

    Today we are looking at how to install Atom text editor on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.

  • How to fix: ‘cannot open shared object file : No such file or directory’ on Ubuntu

    Sometimes, when you try to install a program or a package from its source code, you might end up getting an error which looks like : “error while loading shared libraries: cannot open shared object file No such file or directory”

  • Secure Azure blobs pre-signing in Elixir
  • How to Install pip on Ubuntu 20.04 - RoseHosting

    We'll show you how to install the pip package manager for both Python 3 and Python 2 on an Ubuntu 20.04 VPS. [...] Both Python 2 or Python 3 can be installed on Ubuntu 20.04. However, with Ubuntu 20.04, the default version is Python 3. If for some reason you need Python 2 along with its version of pip, don’t worry, we’re covering that in this tutorial as well. Pip is not installed by default on Ubuntu – however, the installation is quite quick and simple. Let’s start with the installation.

  • SSH 2FA with Google Authenticator and Yubikey - anarcat

    About a lifetime ago (5 years), I wrote a tutorial on how to configure my Yubikey for OpenPGP signing, SSH authentication and SSH 2FA. In there, I used the libpam-oath PAM plugin for authentication, but it turns out that had too many problems: users couldn't edit their own 2FA tokens and I had to patch it to avoid forcing 2FA on all users. The latter was merged in the Debian package, but never upstream, and the former was never fixed at all. So I started looking at alternatives and found the Google Authenticator libpam plugin. A priori, it's designed to work with phones and the Google Authenticator app, but there's no reason why it shouldn't work with hardware tokens like the Yubikey. Both use the standard HOTP protocol so it should "just work".

Games: DemonCrawl, Backbone, Omen Exitio

  • Minesweeper-inspired roguelite DemonCrawl has a big free Halloween update and event live | GamingOnLinux

    I'm not sure what I'm scared of more, creepy crawly Halloween stuff or spending even more time playing DemonCrawl with the latest free expansion. With gameplay very much inspired by the classic Minesweeper, it's got that horrible "one more turn" feeling. It's so easy to get into too but devilishly difficult to actually get through. DemonCrawl needs little in the way of an introduction really. It's Minesweeper on steroids, with some rogue-lite / RPG flavour thrown into it to create a great mix. Imagine each board being an area your character is travelling through, complete with chests to find, money to grab and monsters.

  • Noir roleplaying detective adventure Backbone is 'content complete' with a new trailer | GamingOnLinux

    With a free Prologue available to try out right now, developer EggNut has announced that Backbone is pretty much content complete. Quite exciting, as Backbone: Prologue which arrived on Linux officially back in October 2019 has been reviewed exceptionally well by users on Steam. That's really encouraging on what to expect from the full game when it releases next year. The developer said in the recent announcement that, amongst other things, "Backbone is almost done" and it sounds like they don't have much left to do apart from a big polishing pass on it.

  • Need a scary story-rich adventure novel for Halloween? Try out Omen Exitio: Plague | GamingOnLinux

    Omen Exitio: Plague appears to be a title we've never even mentioned here on GOL which is surprising as it looks great, it supports Linux and users enjoy it. Released back in 2018, Omen Exitio: Plague is a visual novel choice-based adventure set in H.P. Lovecraft's otherworldy universe, so you can expect all sorts of nasty creatures to appear. Italian developer Tiny Bull Studios say it's styled very much like gamebooks of the '80s and '90s, and while it has Lovecraft themes the overall plot and characters are original and what happens is guided by your choices. You could say it's a choose your own adventure, although we don't want to get sued by Chooseco now do we.