Server

How to set up Nagios for server infrastructure monitoring, covering host and service checks, alert notifications, and SLA uptime tracking.…

Continuing the Chef series with cookbook development: writing recipes, defining resources, setting attributes, and building out run lists fo…

Getting started with Chef: understanding nodes, cookbooks, recipes, and how Chef client and server work together to automate infrastructure …

Diagnosing SFTP and port connectivity failures using PortQry on Windows and nmap, nc, and ss on Linux to identify blocked or misconfigured p…

How a production ingestion server failure caused by a full disk was diagnosed, and how a pre-flight check script was built to prevent it fro…

Part 2 of building a private Ubuntu cloud: creating and registering MAAS nodes for bare-metal provisioning and automated deployment on your …

How to clone a live AWS EC2 instance as an AMI snapshot to replicate an existing environment exactly, without interrupting the running workl…

How to install, configure, and secure a vsftpd FTP server on Ubuntu, covering user access controls and basic hardening for a self-hosted fil…

Preparing for the RHCE exam: focusing on command-line tools, hands-on lab practice, and the practical skills Red Hat tests in the performanc…