DevOps

  FTP Installation and Configuration with vsftpd   FTP (File Transfer Protocol) is a standard network protocol used to transfer files from one host to another. For a secure and efficient FTP setup on your server, we will use `vsftpd` (Very Secure FTP Daemon). This guide covers the installation and configuration of `vsftpd` on Debian/Ubuntu and CentOS systems, enabling access to web content from any specified folder.   Step 1: Installing vsftpd   For Debian/Ubuntu:   First, update your package index and install `vsftpd`:   ```bash sudo apt update && sudo apt install vsftpd -y```   For CentOS:   Install `vsftpd` using the `yum` package manager:   ```bash sudo yum install vsftpd –y```   Step 2: Configuring vsftpd   1. Backup the Original Configuration File:      It's always a good practice to back up the original configuration file before making any changes.   ...

CentOS 7 Repo List To continue using CentOS 7 after its End of Life (EOL), you can configure your system to use the archived repositories. Here’s a step-by-step guide to avoid errors during package installations: Step-by-Step Solution 1. Update the Repository URLs:    - Open the `CentOS-Base.repo` file located in `/etc/yum.repos.d/`.    - Update the `baseurl` entries to point to the archive URLs. Replace the existing URLs with the archived ones, for example:      ```ini      [base]      name=CentOS-$releasever - Base      baseurl=http://vault.centos.org/7.9.2009/os/$basearch/      gpgcheck=1      gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7      [updates]      name=CentOS-$releasever - Updates      baseurl=http://vault.centos.org/7.9.2009/updates/$basearch/      gpgcheck=1      gpgkey=file:///etc/p...

DevOps Culture: Bridging the Gap Between Development and Operations   DevOps, a portmanteau of "Development" and "Operations," is more than just a set of practices or tools. It's a culture that represents a paradigm shift in the way software development and IT operations work together. This culture emphasizes collaboration, communication, and integration between software developers and IT operations teams to improve the speed and quality of software delivery.   The Origins of DevOps Culture   The roots of DevOps can be traced back to the early 2000s when companies were facing significant challenges with traditional software development and deployment methods. These methods often involved long development cycles, siloed teams, and a lack of collaboration, leading to delays, higher costs, and poor-quality software releases.   The Agile Manifesto, published in 2001, sought to address some of these issues by promoting iterative development, customer ...