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today's howtos

Submitted by Roy Schestowitz on Friday 2nd of July 2021 04:15:15 PM Filed under
HowTos
  • How To Backup And Restore Files Using Deja Dup In Linux - OSTechNix

    There are multitude of applications available to backup data in Linux and Unix operating systems. In this guide, we will see how to backup and restore files using Deja Dup in Linux.

  • How To Install Ant Media Server on Ubuntu 20.04 LTS - idroot

    In this tutorial, we will show you how to install Ant Media Server on Ubuntu 20.04 LTS. For those of you who didn’t know, Ant Media Server is a highly scalable real-time video streaming platform – WebRTC server. ultra-low latency and adaptive WebRTC streaming software.

    This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the Ant Media Server on Ubuntu 20.04 (Focal Fossa). You can follow the same instructions for Ubuntu 18.04, 16.04, and any other Debian-based distribution like Linux Mint.

  • How to Install VirtualBox Guest Additions on Manjaro - Linux Nightly

    VirtualBox Guest Additions will help you get the most out of your Manjaro virtual machine. It gives you automatic resolution scaling, a shared clipboard between the host and VM, and drag and drop ability. The step by step instructions below will explain how to install VirtualBox Guest Additions on Manjaro Linux.

  • How to Install and Setup Sendmail on Ubuntu - Cloudbooklet

    How to install and configure Sendmail on Ubuntu for sending emails using a email server which routes or relays the mail delivery.

    Sendmail is a opensource Mail Transfer Agent (MTA) which is used to route email using server or by using shell commands. You can also configure SMTP using Sendmail.

    In this guide you are going to learn how to install and setup Sendmail on Ubuntu. Also you will setup SMTP and configure it with PHP.

  • Server Monitoring with Munin and Monit on Debian

    In this article, I describe how you can monitor your Debian 10 (Buster) server with Munin and Monit. Munin generates nifty little graphs about almost every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, network traffic, etc.) without much configuration, while Monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action like a restart if it finds that a service is not behaving as expected. Combining the two gives you complete monitoring: graphs that let you see current or impending problems (e.g. "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services.

    Although you can monitor more than one server with Munin, we will only discuss monitoring the system it is installed on here.

    This guide was written for Debian 10 (Buster), but the configuration should also apply to other distributions like Ubuntu with minor changes.

  • How to ensure your snap uses the correct theme | Ubuntu

    An app is an app is an app. But in the world of Linux, things are a little more nuanced. Take VLC as an example. The software may be packaged ever so slightly differently in various Linux distribution archives, even different releases of the same distribution – the av01 codec is an interesting use case in this regard. Then, software may also be packaged as a snap. Due to their security containment and bundling of necessary dependencies, snaps can behave or look differently to their classic RPM or Deb counterparts. As a publisher, you want to make sure that your users get a consistent look & feel, regardless of the target platform.

    In this blog post, we’d like to highlight several ways you can ensure your users get the best visual experience with snaps. While there may still be outstanding issues with specific aspects of desktop usage, the tips and tricks today should help narrow that gap.

  • systemd on Linux 2: systemctl commands

    The second video in the systemd series, which covers the most common systemctl commands that developers, sysadmins, and devops engineers use.

  • Run Prometheus at home in a container | Opensource.com

    Prometheus is an open source monitoring and alerting system that provides insight into the state and history of a computer, application, or cluster by storing defined metrics in a time-series database. It provides a powerful query language, PromQL, to help you explore and understand the data it stores. Prometheus also includes an Alertmanager that makes it easy to trigger notifications when the metrics you collect cross certain thresholds. Most importantly, Prometheus is flexible and easy to set up to monitor all kinds of metrics from whatever system you need to track.

    As site reliability engineers (SREs) on Red Hat's OpenShift Dedicated team, we use Prometheus as a central component of our monitoring and alerting for clusters and other aspects of our infrastructure. Using Prometheus, we can predict when problems may occur by following trends in the data we collect from nodes in the cluster and services we run. We can trigger alerts when certain thresholds are crossed or events occur. As a data source for Grafana, Prometheus enables us to produce graphs of data over time to see how a cluster or service is behaving.

  • Pablo Iranzo Gómez: UEFI boot order change

    In case you’ve a dual boot machine, sometimes it might happen that grub menu is no longer appearing.

    For systems using regular BIOS, a grub-install against the device it was installed might be required, but when using UEFI, it’s really easy to use a rescue media and execute efibootmgr to alter the boot order.

  • Enable Sysadmin's June 2021 top 10 Linux article round-up

    June 2021 was a special month for Enable Sysadmin. We celebrated our 2 year anniversary, published 26 articles and received over 600k page views from over 415k unique visitors. Today, we are looking back at our top ten articles to give readers a chance to catch up on any of the great content they might have missed. In this list, you will see various topics covered and we are confident that some, if not all will be of interest to you.

»

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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