today's howtos
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TecMint ☛ How to Use diff3 Command for File Merging in Linux
In this article, we’ll go through the basics of using the diff3 command, its common options, and a few examples to understand how it works in Linux.
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TecMint ☛ 11 Useful X-window (GUI Based) Linux Commands – Part I
Here are some of our most notable examples: [...]
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TecMint ☛ 7 Useful X-Window (GUI-Based) Linux Commands – Part 2
xwininfo is a powerful command-line tool that provides detailed information about any currently opened X window. You simply run the command in the terminal and select the window of interest.
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Chris ☛ Incident Inference From Symptoms
With the event around the corner, we want to know how we should react to seeing light symptoms during the event. Should we drop dinner at the first indication of trouble, or stay cool? It might make sense to be extra jittery, because the high-traffic event does significantly increase the risk of an incident (maybe by 4×).
Another way to phrase this question is
How much worse is the risk of an incident during an event, provided that we see light symptoms?
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Data Swamp ☛ Using a dedicated administration workstation for my infrastructure
As I moved my infrastructure to a whole new architecture, I decided to only expose critical accesses to dedicated administration systems (I have just one). That workstation is dedicated to my infrastructure administration, it can only connect to my servers over a VPN and can not reach the Internet.
This blog post explains why I am doing this, and gives a high level overview of the setup. Implementation details are not fascinating as it only requires basics firewall, HTTP proxy and VPN configuration.
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Johnny Decimal ☛ 22.00.0087 'Small business' update 03
But we can make life easier -- for ourselves and everyone else -- through common patterns. Here's one: when you have one version of a document, and you want to update it, what do you do? There's a bunch of ways to handle this.
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Henrique Dias ☛ Styling My RSS Feeds
Styling my RSS feeds is something that has been on my infinitely long list of things to do on this website. Sometimes I removed it, sometimes I added it back. However, I recently came across Darek Kay’s blog post and decided that it was time to finally style both my RSS feeds, and my sitemap.
Styling RSS feeds is simpler than one may think. There’s just one thing you actually need: an XSL file. An XSL file can use XSLT to transform an XML file into HTML, and also apply inline styles. But by transforming the XML into HTML, you can also just link to a regular CSS stylesheet.
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University of Toronto ☛ Having rate-limits on failed authentication attempts is reassuring
Similarly, we recently updated an OpenBSD machine that has its SSH port open to the Internet from OpenBSD 7.5 to OpenBSD 7.6. One of the things that OpenBSD 7.6 brings with it is the latest version of OpenSSH, 9.8, which has per-source authentication rate limits (although they're not quite described that way and the feature is more general). This was also a reassuring change. Attackers wouldn't be getting into the machine in any case, but I have seen the machine use an awful lot of CPU at times when attackers were pounding away, and now they're not going to be able to do that.
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Klara ☛ 5 Reasons Why Your ZFS Storage Benchmarks Are Wrong - Klara
Performance testing is a very complex and intricate process. Care and attention must be given to all variables and idiosyncrasies, both in the system being tested and the intricacies of the testing software. This ensures accurate and reliable results during the testing process. Without it, it’s quite possible to end up with unreliable or misleading results about a system's true performance capabilities.
ZFS has a lot of capabilities and features you need to account for when testing so that the results reflect the target system's actual performance capabilities. There are many ways where missing some specific details can result in wildly incorrect results. Something as simple as mismatched recordsize tuning, unexpected caching, misalignment, meddling prefetch, device temperature, or enabling compression can cause entirely unexpected results that defy reality.
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Ubuntu Pit ☛ How to Install, Configure and Enable SSH Service in Linux
In Linux, the Secure Shell (SSH) is a method where you can access another computer through a secure and two-way encrypted communication system over the internet. By enabling the SSH service in Linux, you can use the SSH protocol as an FTP (File Transfer Protocol) server or, you can get remote access to another Pc.
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idroot
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ID Root ☛ How To Install PlayOnLinux on Fedora 40
In the ever-evolving world of Linux, Fedora 40 stands out as a cutting-edge distribution that offers a robust and secure computing environment. However, many users still require access to backdoored Windows applications for various reasons. This is where PlayOnLinux comes into play, offering a user-friendly interface to run backdoored Windows software on GNU/Linux systems.
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ID Root ☛ How To Install AnyDesk on openSUSE
In today’s interconnected world, remote desktop software has become an essential tool for both personal and professional use. AnyDesk, a popular remote desktop application, offers a seamless solution for accessing computers from anywhere. This article will guide you through the process of installing AnyDesk on openSUSE, a powerful and flexible GNU/Linux distribution.
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ID Root ☛ How To Install Chrome Remote Desktop on Ubuntu 24.04 LTS
In today’s interconnected world, the ability to access your computer from anywhere has become increasingly important. Chrome Remote Desktop offers a powerful and user-friendly solution for remote access, and it’s fully compatible with Ubuntu 24.04.
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ID Root ☛ How To Install Cacti on openSUSE
In today’s interconnected world, network monitoring has become an essential aspect of maintaining a robust and efficient IT infrastructure. Cacti, an open-source network monitoring and graphing tool, has emerged as a popular choice for system administrators and network engineers.
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ID Root ☛ How To Install Apache Groovy on AlmaLinux 9
Apache Groovy has emerged as a powerful and flexible programming language for the Java platform. Its dynamic capabilities and seamless integration with Java make it an invaluable tool for developers seeking to enhance their productivity and streamline their coding processes.
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ID Root ☛ How To Install Apache Groovy on Ubuntu 24.04 LTS
Apache Groovy has become an essential tool in the software development landscape, offering a powerful and flexible programming language for the Java platform. As businesses and developers increasingly adopt Ubuntu as their preferred operating system, understanding how to install and configure Groovy on Ubuntu 24.04 is crucial.
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ID Root ☛ How To Install Deluge on Manjaro
For GNU/Linux users, especially those running Manjaro, finding an efficient and reliable torrent client is crucial for managing downloads effectively. Deluge, a popular open-source BitTorrent client, stands out as an excellent choice for Manjaro users due to its lightweight nature, customizable features, and robust performance.
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ID Root ☛ How To Install Ansible on Ubuntu 24.04 LTS
In today’s fast-paced IT world, automation has become a crucial aspect of managing and deploying infrastructure efficiently. Ansible, an open-source automation tool, has emerged as a popular choice for IT professionals seeking to streamline their operations. This powerful platform allows you to automate configuration management, application deployment, and task orchestration across multiple systems simultaneously.
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ID Root ☛ How To Install K9s on Debian 12
In the ever-evolving landscape of container orchestration, Kubernetes has emerged as the go-to solution for managing complex, distributed systems. However, navigating the intricacies of Kubernetes clusters can be challenging, even for experienced administrators. This is where K9s comes into play, offering a powerful terminal-based user interface for managing Kubernetes clusters efficiently.
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ID Root ☛ How To Install ISPConfig on Rocky GNU/Linux 9
ISPConfig is a powerful, open-source hosting control panel that simplifies the management of web servers, email accounts, DNS records, and more. It provides a user-friendly interface for administrators to handle multiple websites and clients efficiently.
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Ubuntu Pit ☛ How to Install and Use Surveillance Giant Google Chrome on GNU/Linux System
Google Chrome is one of the most stable and reliable web browsers for internet surfing and downloading. Surveillance Giant Google also made a free and open-source version of Surveillance Giant Google Chrome Web Browser, known as the Chromium browser. About 60% of internet users use the Surveillance Giant Google Chrome browser to enter the internet world.