Have you ever looked in the apache config files to see where a website's virtual host is defined? The apache2ctl script has a useful option that could come in good here. When you execute the command, it should look like this: apache2ctl -S You'll obtain a list of all virtual hosts and default servers in ... Read more
The gunzip command is a widely used command for uncompressing files which are made using the gzip utility. It decompresses files with the.gz or .tgz file extension. The command removes the compressed file. After decompression, the files retain their original extension. Gzip is a popular file compression algorithm that keeps the file’s original mode, ownership, ... Read more
The apt is the most powerful command-line utility for managing the packages such as installing packages, updating package info, upgrading packages as well as Linux kernel, and removing unused packages in the Linux Debian family. The apt command is a CLI package managing tool that is a combination of apt-get and apt-cache which is more ... Read more
Sometimes you require a certain file from a Debian .deb package. For example, because you accidentally deleted a file. Or because the package's installation is faulty and it can't be restored without first adding the missing file. This FAQ explains how to extract the contents of a.deb file downloaded from the Debian or Ubuntu repository. ... Read more
Hint: The procedure that is described below is for ISPConfig versions < 3.0.3. For newer ispconfig versions, use the builtin ssl certificate creation function of the ispconfig updater instead. The steps below should only be used to manually create a new SSL certificate in case that you can not run the updater on your installation. The ... Read more
When working with the Linux command line, there are situations where you need to type large paths. Even if you use the bash shell's autocomplete feature, this is a time-consuming process. But do you know that there are times when you can get away with entering a path only once (even if it has to ... Read more
Creating multiple Hyper-V virtual machines using Hyper-V manager is not a quick method. The quickest and time-saving method is to create them via Windows PowerShell. This tutorial has been written to show you how to create three Hyper-V virtual machines with a PowerShell script. Create Multiple Hyper-V Virtual Machines Using PowerShell Step 1. Open notepad editor ... Read more
If you have a directory with many files (a few thousand in my case) and need to know which one is the newest, then the following command might be useful. It returns the name and details of the newest file in a directory where it is executed: ls -tl | sed -n 2p
As a technical writer, I deal with a lot of files in my job - sometimes I'm cropping images, other times I'm playing with .zip and .deb files. Not to mention PDFs and other document types we all deal with in our daily computer work. At present my Downloads directory contains over a thousand items, ... Read more
Docker is a tool designed to create, deploy and run applications using containers. With a container, developers can package applications with all parts they need such as libraries, dependencies and ship it all out as on. Docker provides a REST API to talk with its daemon which is executed by the command-line interface. This article ... Read more