Assistant who is always at hand
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Tovarlds. Linux is typically packaged in a Linux distribution.
Suppose we have a virtual machine with the Debian operating system installed and we want to increase the size of a partition, for example a system partition. In this article, we will take a look as an example of at Debian 11 extend partition without LVM. Introduction Our Debian 11 is installed on Hyper-V. First, … Read more
Suppose we have a virtual machine with the Ubuntu operating system installed and we want to increase the size of a partition. In this article, we will take an example of Ubuntu 21 extend partition without LVM. Introduction Our Ubuntu 21 is installed on Hyper-V. First, let’s check the size of the file system by … Read more
Suppose we have a virtual machine with the Ubuntu operating system installed and we want to increase the size of a partition, for example, a system partition. In this article, we will take an example of Ubuntu 20 extend partition without LVM. Introduction Our Ubuntu 20 is installed on Hyper-V. First, let’s check the size … Read more
Distributed version control system git is a set of programs that allow several people to work with the same files at the same time. In doing so, you can track the changes made by each of them, make these changes to remote repositories, and roll them back by reverting files to previous versions. Choosing a … Read more
Certbot is a Python client that automates both obtaining free certificates from Let’s Encrypt and configuring web servers to create a secure https connection using these certificates. As an example, we will look at installing Cerbot on CentOS, learn how to get a free certificate using it and automatically configure nginx / apache. Install Certbot … Read more
If we try to run py scripts or software that uses python in CentOS 8, we get one of the following errors: This is due to the fact that in CentOS 8, the python package is not installed by default. The system developers decided to leave the version choice and installation to us users. CentOS … Read more
Sometimes you need to add an alias on the interface. In CentOS 8 add second IP can be done in several ways. 1 ifconfig2 /etc/sysconfig/network-scripts/ Adding an alias with ifconfig To get started, let’s look at the available interfaces in the system using ifconfig: In the example, this is eth0. To add a second IP … Read more
Earlier we installed CentOS 8. But what if the disk size was not enough? Fortunately, this operating system uses LVM by default, and in this article we will use for example the CentOS 8 extend LVM partition. This procedure is practically no different from the actions in previous versions of this OS. Attention! Before you … Read more
On September 24, 2019, CentOS 8 was released, the first version of the system was marked 8.0-1905. In Centos 8 installation does not fundamentally differ from the installation in previous versions of the system, however, small differences still appeared. The article provides step-by-step installation instructions for Centos 8 with comments and screenshots. 1 Distributives2 Install … Read more
A virtual machine with Ubuntu, this system deployed on Hyper-V. And it is impossible to change the screen resolution using standard tools. But the necessary parameters can be set via the console (all commands are executed as root): Open grub settings: nano /etc/default/grub Search next line: GRUB_CMDLINE_LINUX_DEFAULT and add video=hyperv_fb:1920×1080, where 1920×1080 – resoluton we … Read more
