today's howtos

posted by Roy Schestowitz on Oct 28, 2024

• How To Install Cacti monitoring on Ubuntu 24.04, 22.04 or 20.04

  Learn how to install Cacti on an Ubuntu 24.04 Noble, 22.04 Jammy JellyFish, or Ubuntu 20.04 Focal Fossa server to monitor network devices. Cacti is an open-source tool for monitoring hosts in more extensive networks using SNMP (Simple Network Management Protocol).

• It's FOSS ☛ Exploring the Lightweight Alpine GNU/Linux in Virtual Box

  Explore the lightweight Alpine GNU/Linux inside a Virtual Machine by following these steps.

• Ruben Schade ☛ Domain transfer locks for your domains

  If you have a spare few moments this weekend, and have some domains you maintain for yourself or family, maybe take a quick peek and make sure everything is configured correctly. Best to find out now, not when you get a transfer authorisation request.

• University of Toronto ☛ The importance of name-based virtual hosts (websites)

  I recently read Geoff Huston's The IPv6 Transition, which is actually about why that transition isn't happening. A large reason for that is that we've found ways to cope with the shortage of IPv4 addresses, and one of the things Huston points to here is the introduction of the TLS Server Name Indicator (SNI) as drastically reducing the demand for IPv4 addresses for web servers. This is a nice story, but in actuality, TLS SNI was late to the party. The real hero (or villain) in taming what would otherwise have been a voracious demand for IPv4 addresses for websites is the HTTP Host header and the accompanying idea of name-based virtual hosts. TLS SNI only became important much later, when a mass movement to HTTPS hosts started to happen, partly due to various revelations about pervasive Internet surveillance.

• Julia Evans ☛ Using less memory to look up IP addresses in Mess With DNS

  I’ve been having problems for the last 3 years or so where Mess With DNS periodically runs out of memory and gets OOM killed.

  This hasn’t been a big priority for me: usually it just goes down for a few minutes while it restarts, and it only happens once a day at most, so I’ve just been ignoring. But last week it started actually causing a problem so I decided to look into it.

• [Old] Jessie Frazelle ☛ Ramblings from Jessie: Setting the Record Straight: containers vs. Zones vs. Jails vs. VMs

  The point I am trying to make is that Jails, Zones, VMs and containers were designed and built in different ways. Containers are not a Linux isolation primitive, they merely consume Linux primitives which allow for some interesting interactions. They are not perfect; Nothing is.

  We can make them better by reducing some of the complexity and building hardening features around them which is a goal I have been trying and will continue trying to do.

• Zsolt Ero ☛ Understanding Round Robin DNS

  Let's see how it works in practice.

  I created 3 VPSs around the world: one in the US, one in the EU, and one in Singapore. I made 3 proxied and 3 non-proxied A records in Cloudflare.

• [Old] Thomas Habets ☛ SSH over bluetooth - cleanly

  In my previous two posts I set up a login prompt on a bluetooth serial port and then switched to running SSH on it.

  I explicitly did not set up an IP network over bluetooth as I want to minimize the number of configurations (e.g. IP address) and increase the chance of it working when needed.

• OMG Ubuntu ☛ Make Firefox Look Like Classic Chrome with Geckium Theme

  Ever feel a pang of a nostalgia for the way web browsers used to look, but don’t fancy the hiccups or hassle involved in trying to run old software on a newer OS? Honestly, you probably don’t – but after checking out what the Geckium project can do style-wise to Mozilla Firefox, that may change! Before I go on let me state upfront that this post is a spotlight, not a manifesto.

• idroot

  • ID Root ☛ How To Install Apache Cordova on AlmaLinux 9

    Apache Cordova has revolutionized the world of mobile app development by enabling developers to create cross-platform applications using standard web technologies. This powerful framework allows you to build mobile apps for various platforms, including Android and iOS, using HTML, CSS, and JavaScript.

  • ID Root ☛ How To Install Apache Cordova on Ubuntu 24.04 LTS

    Apache Cordova is a powerful open-source mobile application development framework that allows developers to create cross-platform mobile apps using standard web technologies such as HTML, CSS, and JavaScript. By leveraging Cordova, developers can build applications that run on multiple mobile platforms while maintaining a single codebase, significantly reducing development time and costs.

  • ID Root ☛ How To Install NTP on Ubuntu 24.04 LTS

    In today’s interconnected digital world, accurate timekeeping is crucial for various system operations and network synchronization. The Network Time Protocol (NTP) plays a vital role in maintaining precise time across computers and devices.

  • ID Root ☛ How To Install Timeshift on AlmaLinux 9

    In the world of GNU/Linux system administration, maintaining regular backups is crucial for ensuring data integrity and system stability. Timeshift, a powerful and user-friendly backup solution, has gained popularity among GNU/Linux users for its ability to create system snapshots effortlessly.

  • ID Root ☛ How To Install Jellyfin on GNU/Linux Mint 22

    In the ever-evolving world of digital media consumption, having a reliable and versatile media server is crucial for managing and streaming your personal media collection. Jellyfin, an open-source media server software, has gained popularity among tech enthusiasts and home media aficionados alike.

  • ID Root ☛ How To Install PostfixAdmin on Ubuntu 24.04 LTS

    PostfixAdmin is a powerful web-based management interface for Postfix mail servers, allowing administrators to efficiently manage domains, mailboxes, aliases, and more. As a GNU/Linux system administrator, installing PostfixAdmin on Ubuntu 24.04 is a straightforward process that can significantly streamline your mail server management tasks.

• Linuxiac ☛ EOPKG: The Solus User’s Guide to Managing Software

  This guide shows you all the essential EOPKG commands for installing, updating, and handling packages efficiently on Solus Linux. [...] Solus is a unique, independently developed, rolling release distribution well known for its Budgie desktop, that belongs to the so-called original Linux distros category.

  This means that it doesn’t rely on the codebases of existing Linux systems; instead, it was built from the ground up, which proudly puts it in a rather small group, along with names like RHEL, Debian, Arch, (open)SUSE, Slackware, and Gentoo.

• HowTo Geek ☛ How to Install OBS Studio on Linux

  OBS Studio is a simple, yet powerful program that lets you record the video and audio of whatever is happening on your computer screen. It’s available for every major OS, but may need a bit of extra work for Team Penguin. Let's go over how you install and prepare to set up OBS Studio on Linux.