Sysadmin

Learn how to use Fail2ban, a powerful tool to protect your Linux server from brute force attacks and unauthorized access. This guide explains how Fail2ban works, how to set it up, and why it’s an essential addition to your server security toolkit.

Learn how to setup a RAID5 array on Linux to achieve data redundancy for your servers.

This tutorial will demonstrate how to install a specific version of Python on Ubuntu Linux.

In this tutorial we will demonstrate how to persist iptables rules across reboots.

Install Nodejs on Linux using NVM

This docker troubleshooting tutorial will show you how to free up disk space that was consumed by docker logs.

Using if statements in bash to check if environment variables exist

Server Backups to Google Drive using the Drive CLI tool

This tutorial will show you how to do Port Forwarding with Iptables on Linux.

This is a linux tutorial on how to set a Static IP address in Ubuntu 18 Linux.

Elasticsearch Templates Tutorial

Reindex your Elasticsearch Indexes Tutorial

Shrink your Elasticsearch Index by Reducing the Shard Count with the Shards API

Sysadmin Linux Troubleshooting Cheatsheet

Fix Mac High Sierra opendlrectoryd Too many corpses being created issue

Benchmark Website Response Times with CURL

Investigating High Request Latencies on Amazon DynamoDB

This tutorial shows you how to install the java development kit (jdk) on ubuntu linux.

This tutorial shows you how to clear up disk space on docker swarm by removing unused data with prune.

Systemd - In this tutorial, we will demonstrate how to unmask a masked service in systemd using Ubuntu Linux, ensuring your services run smoothly.