today's howtos

posted by Roy Schestowitz on Sep 08, 2022

• http://http://http://@http://http://?http://#http://

  As it took off, got an amazing attention and I received many different comments and replies, I felt a need to elaborate a little. To add some meat to this.

  Is this string really a legitimate URL? What is a URL? How is it parsed?

  http://http://http://@http://http://?http://#http://

• Common Networking Port Numbers in Linux

  While using a computer or smartphone, we use various hardware ports such as 3.5mm for audio, HDMI, Type-c, etc. which are used to communicate with hardware peripherals.

  Similarly, networking ports serve the same purpose by enabling us to access various networking services on a single computer. So even if you are an IT student or want to start a carrier in networks, ports are considered one of the most basic and foundational terms.

  So through this article, I will walk you through some basics of networking ports, the range of ports, and some of the most common ports to get started with.

• 2 ways to Install LibreCAD on Ubuntu 22.04 LTS Jammy Linux

  With the free CAD software “LibreCAD” you can create precise technical drawings, design plans or sections, and views of components. The 2D vector graphics program offers a variety of tools for drawing points, lines, circles, curves, ellipses, and other geometric shapes from which you can construct your two-dimensional models. If necessary, you can position drawing objects on different layers (layers) or group selected elements.

  The freeware offers numerous, different options to construct even elaborate 2D outlines. Via the selection menu on the left side, you can bring straight lines, arcs, ellipses, function graphs, or simple dots to the virtual drawing board.

  For a better overview, color outlines and vary the line thickness or stroke shape as needed. To save time, it is best to use the various options and the “Modify” category. Useful functions such as “Mirror”, “Scale” or “Rotate” are hidden here.

• How to Install XWiki with Nginx Reverse Proxy on Ubuntu - OSNote

  XWiki is an easy, compact, and efficient wiki platform that enables you to tailor the wiki to fit unique requirements. It is implemented in Java & operates on JBoss or Tomcat-based servlet containers. XWiki is an easy and intuitive online frontend that allows you to generate and organize data from every gadget or search engine. WYSIWYG edit, OpenDocument-based file import/export, tagging, version control, sophisticated wiki syntax, comprehensive search capability, and much more are just a few of the tools included. We’ll demonstrate how to set up XWiki on Ubuntu 20.04 throughout this guide.

• How to Allow, Block, and Reject USB Drives to Protect Your System from Malicious USB - TREND OCEANS

  It’s necessary to take extra measures to prevent any kind of mishap. For that reason, we usually close the ports and services. In addition, we also implement firewall rules to block connections.

  SELinux or AppArmor have been enforced, but sometimes it is also necessary to block the USB port, which can also be used as a means to inject something malicious into the system.

  For instance, you are in charge of a computer lab, and you are solely responsible for managing the laboratory. There may be thousands of users may be accessing the system for educational and research purposes.

• How to Check Tomcat Version on Linux - TecAdmin

  Tomcat installation provides an shell script version.sh for the Linux-based systems and version.bat for Windows systems. This script provides detailed information about the Tomcat version and other details. This quick blog post will help you to find the Tomcat version installed on your system.

• Create a Image Hosting Website with Chevereto-Free on Ubuntu 22.04

  Chevereto is a free and open-source image hosting and sharing software that allows you to host your own image hosting server on the web. It is a self-hosted, multipurpose, multi-user, and full-featured image hosting solution that allows you to create responsive image hosting websites. It offers many features, including multiple languages, bulk image importation, social media integration, multiple servers and more.

  In this post, we will show you how to install the Chevereto image hosting solution on Ubuntu 22.04.

• How to use chroot on Debian 11 - VITUX

  At times, when we want to experiment with something new, we always prefer to run it on a virtual machine or in a sandbox environment so that it cannot cause any damage to our original machine or its important files. The chroot command allows us to run commands and programs in a safe environment by creating an alternate root directory for them. Therefore, we will be talking about the method of using this command on Debian 11.

• Linux pstree Command Tutorial for Beginners (8 Examples)

  Since every process (except the very first one) in a Linux system has a parent, it sometimes makes things easier to understand if all processes are displayed in a tree structure. You'll be glad to know there exists a command line utility - dubbed pstree - that displays a tree of processes.

  In this tutorial, we will discuss the basics of the pstree command using some easy-to-understand examples. But before we do that, it's worth mentioning that all examples here have been tested on an Ubuntu 22.04 LTS machine.