VirtualBox allows you to run virtual machines on your computer that share the computer's hardware resources with the host operating system. VirtualBox also provides the ability to use dynamically growing storage, which allows you to create drives that are (virtually) the same fixed size inside, but the physical image files themselves are only a few megabytes in size when created and grow depending on the amount of data loaded. This is unfortunately not true backwards, so if you delete something from the virtual machine, for example, the size of the physical image file on the virtual storage device will unfortunately not be reduced. In this description, we will look at how to manually shrink the dynamically growing image files of our VirtualBox virtual machines to the size actually used on Linux and Windows systems.
Linux tutorials, system administration, web hosting, programming
If you use the command line frequently and have to work in several windows at once, it is essential to have a multi-tab terminal application that is comfortable to use and has the right knowledge. In this small user tutorial, you will learn about the Asbrú Connection Manager Linux application and its basic functions. On this page, we will install the program and review the global settings.
With the help of LAMP systems, we can run dynamic web pages on our server or even on our home computer. I have previously built LAMP servers for Debian 8 (Jessie), Debian 9 (Stretch) and Ubuntu 18.04 LTS (Bionic Beaver), and in this description we will install the LAMP server components for the Ubuntu 20.04 LTS (Focal Fossa) Linux distribution.
Version 2020 of the ISPConfig web hosting control panel was released today (October 15, 3.2). This update is not as standard as the sub-version updates, but several new features have been added to the control panel here. In this description, we will review these innovations as well as update the control panel from 3.1.15 to 3.2 running on me.
When you often need to run other commands as root using sudo, you may need to type the password every time. Although the session "remembers" the previously entered password for a while, we don't have to retype it for a while, but we need to re-identify ourselves after a while. Also, if you work with multiple users, you will need our passwords more often. And if you also want to use commands running with root privileges in Shell scripts, you definitely need to avoid typing passwords so that our programs can run automatically. In this short description, we will look at how to persistently avoid asking for a password when using sudo.
Drupal is an open source, free CMS (content management) system that can be used to build a wide variety of websites, such as this site. It has many features, including support for managing SEO URLs, which is notoriously beneficial for search engines. As elsewhere, unfortunately, errors can occur here, such as index.php files being unduly included in page URLs. In this short little troubleshooter, we'll look at how to remove these unnecessary index.php parts from URLs.
Ubuntu released version 2020 LTS (Focal Fossa) on April 23, 20.04, for which it will provide support until April 2025. It has even received an update since the release of 20.04, so currently 20.04.1 LTS is the latest version of this Ubuntu line. In this description, we will use version 20.04.1 to create the latest family member for the minimum servers. On this page we will walk you through the steps of the installer.