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today's howtos

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HowTos
  • How To Install HAProxy on CentOS 8 - idroot

    In this tutorial, we will show you how to install HAProxy on your CentOS 8. For those of you who didn’t know, HAProxy is a free HTTP/TCP high availability load balancer and proxy server. It spreads requests among multiple servers to mitigate issues resulting from a single server failure. HA Proxy is used by a number of high-profile websites including GitHub, Bitbucket, Stack Overflow, Reddit, Tumblr, Twitter, and Tuenti, and is used in the OpsWorks product from Amazon Web Services.

    This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step by step installation HAProxy on a CentOS 8.

  • How To Install Python 3.9 on Ubuntu 20.04 – TecAdmin

    Python is an object-oriented, high-level programming language. It is an open source with a large community. Python is used as key languages among the top tech companies like Google.

    The Python 3.9 stable version has been released with several improvements and security updates. It included multiple new modules, improved existing modules and many other features.

    You can choose deadsnakes PPA for Python installation on Ubuntu 20.04 system.

    Use this tutorial to install Python 3.9 On Ubuntu 20.04 LTS Linux system via Apt-Get. You can also choose second method to install Python using source code.

  • YAML for beginners | Enable Sysadmin

    YAML Ain't a Markup Language (YAML), and as configuration formats go, it's easy on the eyes. It has an intuitive visual structure, and its logic is pretty simple: indented bullet points inherit properties of parent bullet points.

    But this apparent simplicity can be deceptive.

    It's easy (and misleading) to think of YAML as just a list of related values, no more complex than a shopping list. There is a heading and some items beneath it. The items below the heading relate directly to it, right? Well, you can test this theory by writing a little bit of valid YAML.

  • colorls – turbocharged alternative to ls

    The part of the operating system responsible for managing files and directories is called the file system. It organizes our data into files, which hold information, and directories (also called ‘folders’), which hold files or other directories. Several commands are frequently used to create, inspect, rename, and delete files and directories.

    One of these commands is ls, which prints the names of the files and directories in the current directory. A directory is really just a file. It’s a special file with special rules. The ls utility appeared in the first version of AT&T UNIX.

    Are you looking to liven up your shell? Want a bit more beauty on your terminal? colorls might be the ticket. colorls is a command-line utility that aims to improve on ls. color is written in Ruby.

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