Nginx with Let’s Encrypt SSL Manual Setup Let’s Encrypt SSL on Ubuntu This tutorial will help you to install Let’s encrypt client on Ubuntu system. Also issue a free ssl certificate and configure with Apache server. Step 1 – Prerequisites Before starting work on this task, I assume you already have: Running Ubuntu system with sudo privileges shell access. A domain name registered and pointed to your server’s public IP address....
The readlines() Method is very useful for reading files that contain lots of information or have many lines of text. You can also use the readlines() Method to read a file one line at a time, which is great for file-processing tasks. What’s even better is that the readlines() Method is easy to use and can be implemented in just a few lines of code. So if you’re looking for a reliable way to read files in Python, look no further than the readlines() Method!...
In this article, we will see how we can run a job cron job every 10 minutes, 20 minutes, or 30 minutes. Use the following timer options to schedule a job in crontab to run on specified intervals. Running a corn every 10 minutes /10 * * * * /opt/script.sh1/10 * * * * /opt/script.sh Running a corn every 20 minutes /20 * * * * /opt/script.sh1/20 * * * * /opt/script....
It’s important to know the components of your computer hardware and how they work together because they are what enable you to do all of the things you love on your computer, like playing games, browsing the internet, and watching videos. Without computer hardware, there would be no computer. So next time you’re using your computer, take a moment to think about all of the stunningly designed hardware that makes it possible....
To clear the Redis cache, you can use the FLUSHALL command. This command removes all keys from all databases in the Redis instance. Here’s a step-by-step guide on how to clear the Redis cache: Conclusion Note that the FLUSHALL command is an administrative command, and it is not recommended for use in production environments. If you want to clear only a specific database or a subset of keys, you can use the FLUSHDB or DEL commands instead....
Installing AWS CLI The AWS CLI packages are available under the default repositories on most of the Linux systems. You can install it by running one of the following commands: You can also another article to install latest AWS CLI on any Linux system. Once the installation finished, check the awscli version by executing: Create A Shell Script Now, create a shell script file on your system and add the below content....
Requirements You are required following things to create Ubuntu bootable USB in Windows systems. An USB Drive Ubuntu ISO Image Universal USB Installer application A Windows System to create boot disk Step 1 – Download Ubuntu ISO You can easily download the Ubuntu ISO image from its official website. Download the Ubuntu Desktop or server edition as per your requirements. Download Ubuntu ISO Image Step 2 – Install Universal USB Installer For this tutorial, I am going to use the Universal USB Installer utility on Windows to create a bootable USB drive....
Random strings can be generated using a computer program or a physical random number generator. The length and character set of a random string can be specified in the generation process. For example, a random string might be generated using only uppercase letters and digits, or it might include a combination of letters, digits, and special characters. Generate Random String in Linux To generate a random string in Bash, you can use the openssl command and the base64 encoding function....
In this article, we will explore how to generate random strings in Python using these two modules. Method 1: Using Python secrets Module Here’s an example of how to use the secrets module to generate a random string in Python: This code will generate a random string of 32 characters, consisting of hexadecimal digits (0-9 and a-f). The token_hex() function generates a secure, random string of the specified length using the urandom() function from the os module....
Desktop environments are super user-friendly and intuitive; they help the user access, manage and manipulate files easily. But they do not provide full control over the functionality/capabilities of the OS. To get the most out of an operating system CLI (command line interface) is still preferred. How to Choose the Right Desktop Environment Every Linux distribution comes with its own default desktop environment but you have the option to switch to the environment of your choice....
Prerequisites Shell access to a running Ubuntu system. Install PHP 5.3 or higher version. PHP’s package manager, php-cli, must be installed and available in your PATH Installing PHP Composer on Ubuntu The Composer’s official team provides a script to install PHP composer on Linux systems. You can download this script using the curl or wget command-line utility. Also, you can download it directly using the PHP script command line. Upgrade PHP Composer The PHP composer has the ability to self-upgrade to the latest versions....
Vim comes standard with most modern Linux distributions, but some of the minimal installation doesn’t include vim editor default. This tutorial will help you to install Vim text editor on your Linux system. Here are a some of the extended vim features: Supports multi-level undo tree Vim provides extensive plugin system Provide support for hundreds of programming languages and file formats Powerful search and replace options Provides integration with multiple tools...
You must have Mattermost server installed in your self-managed instance or signup for the Mattermost cloud. For this tutorial, I have created an account on Mattermost cloud free version. You can go with professional or enterprise edition as per your requirements. This tutorial describe you to how to install Mattermost desktop client on Ubuntu 20.04 LTS Linux system. Prerequisites You must have Desktop install on your Ubuntu system. Login as sudo privileged account on your Ubuntu 20....
This tutorial will help you to install NVM on Ubuntu 20.04 Linux system. Also, allow you to install different node versions and other useful examples. Prerequisites You must have a running Ubuntu 20.04 Linux system with shell access. Log in with a user account to which you need to install node.js. Installing NVM on Ubuntu A shell script is available for the installation of nvm on the Ubuntu 20.04 Linux system....
Step 1 – Prerequisites Use the following command to install prerequisites for Python before installing it. Step 2 – Download Python 3.5 Download Python using following command from python official site. You can also download latest version in place of specified below. Now extract the downloaded package. Compile Python Source Use below set of commands to compile python source code on your system using altinstall. make altinstall is used to prevent replacing the default python binary file /usr/bin/python....
An RPM package of Teamviewer is built by the official team and is available for installation on Fedora systems. You can download the package from its official website. This tutorial described how to install TeamViewer on the Fedora Linux system. Prerequisites Assuming, you have a running Fedora desktop system. Have access to the desktop environment with a sudo privileged account. The installation part can also be performed via the command line....
XRDP is an easy-to-install and configurable service for Ubuntu systems. But you can also use a VNC server to access the remote desktop of the Ubuntu systems. Find a tutorial to install a VNC server on Ubuntu systems. This tutorial will provide you with the instructions to install the XRDP service on Ubuntu 22.04 Desktop systems. Prerequsities Assuming you have a running Ubuntu system with a desktop installed. Now login to the system and open a terminal:...
This article will help you to step by step install Zabbix on Debian 9 and Debian 8 Systems. If you are using CentOS, RHEL or Fedora then Click here to install Zabbix on CentOS, RHEL or Fedora Step 1 – Setup LAMP Stack You must have a LAMP environment on your server to use Zabbix server. If you already have LAMP configured, just skip this step, else install Apache, MySQL, and PHP using the following commands....
Install sshpass The sshpass package is available in default packages repositories for most of the latest operating systems. You can use following commands to install it on your system. On Debian: On CentOS: Using sshpass sshpass uses SSHPASS environment variable to store user passwords. You need to first SSHPASS variable with password then use this command. Here is a simple shell script using sshpass. You can also run ssh command as following with sshpass....
This tutorial will help you search for text, string or pattern in Vi(m) text editor. How to Search in Vi(m) Editor To start searching in the Vi(m) editor, first press the ESC key to switch to command mode in the editor. Then press “/” and then press the search text. This will move the cursor to the first match of the searched string. Then use the shortcut keys to navigate to the previous or next search string, as shown below:...
