Security-Enhanced Linux (SELinux) is a powerful security feature of Linux distributions that provides a mechanism for supporting access control security policies. While SELinux is a valuable tool for enhancing system security, there are scenarios where you might need to disable it, such as for troubleshooting or specific application requirements. However, […]
Guides
18 posts
MongoDB replica sets are a cornerstone of modern database management, ensuring high availability and data redundancy. However, managing a cluster can sometimes be challenging, especially when a node enters a recovery state. This post delves into what this means for your MongoDB cluster, especially when one of the nodes in […]
Working with servers often requires a good understanding of network communication. One common task is sending messages across the network for testing or configuration purposes. In this blog, we’ll explore how to send a UDP (User Datagram Protocol) message to a specific IP address and port on a Red Hat […]
Managing disk space effectively is a critical skill for any Linux user. Whether you’re a system administrator or a casual user, understanding how to modify disk partitions can help you optimize storage. In this post, we’ll explore how to delete a disk partition, specifically focusing on a partition like sdb1 […]
Static routes are crucial for directing network traffic along specific paths. Here’s a step-by-step guide on how to set them up in RHEL 7 and RHEL 8. RHEL 7 Static Routes 1. Temporary route with ip command:To add a static route to the 192.168.2.0/24 network via the 192.168.1.1 gateway: 2. […]
Creating a Kafka cluster that is efficient and resilient is not a simple task. It requires a clear understanding of many components and their interdependencies. In this blog post, we’re going to walk you through the essentials of setting up a Kafka cluster, highlighting the key things you’ll need. 1. […]
Capturing network packets is a valuable technique for troubleshooting network issues, analyzing network traffic, or performing security assessments. On RHEL 7 (Red Hat Enterprise Linux 7), one of the most powerful command-line packet analyzers available is tcpdump. In this blog post, we will explore how to use tcpdump to capture […]
The task of regularly updating your server is essential for maintaining both system security and stability. However, when managing multiple servers, it can become a daunting and time-consuming task. Fortunately, Red Hat Enterprise Linux (RHEL) 8 provides an efficient solution for automatic updates with the dnf-automatic tool. In this blog […]
Keeping your server updated is a crucial part of maintaining system security and stability. This might seem a daunting task, especially if you’re dealing with multiple servers. However, Red Hat Enterprise Linux (RHEL) provides a simple and effective solution for automatic updates: yum-cron. In this article, we will walk you […]
In the world of server administration, it’s quite common to need to change the IP address or hostname of a server. Whether it’s for network reconfiguration, setting up a development environment, or deploying a new server, understanding how to make these changes is crucial. In this blog post, we’ll walk […]
This blog post will guide you through the process of changing the DNS server settings on your Ubuntu Server 22. By changing your DNS servers, you can improve the security, privacy, and speed of your internet connection. We’ll cover how to modify the Netplan configuration file and verify the changes. […]
Firewalls are an important aspect of network security. They are designed to protect your system from unauthorized access and malicious traffic. In this blog post, we will show you how to set up a firewall using UFW (Uncomplicated Firewall) in Ubuntu. Step 1: Install UFW First, you need to install […]
In this blog post, i will guide you through setting up Node Exporter on a new server and integrating it with an existing Prometheus server. Node Exporter is a Prometheus exporter that exposes system-level metrics about your servers, which can be collected and visualized using Prometheus and Grafana. Step 1: […]
Keeping your Ubuntu 22.04 system updated is essential to ensure security and performance. Manually updating the system can be time-consuming, and you may forget to do it regularly. This blog post will guide you on how to set up automatic OS package updates using the unattended-upgrades package, ensuring your system […]
Need to clean up your Google Analytics account by removing a website that’s no longer active or relevant? Don’t worry; I’ve got you covered. In this quick tutorial, I’ll walk you through the process of removing an existing website (property) from your Google Analytics account. Let’s get started! Step 1: […]
Hey there! Are you curious about how many visitors your shiny new WordPress blog is attracting? Want to find out which posts are the most popular and where your traffic is coming from? Look no further! In this post, I’ll walk you through setting up Google Analytics, a powerful and […]
Hey there! Want to secure your WordPress blog with SSL, but don’t want to spend a fortune on certificates? Don’t worry! I’ve got your back. In this guide, I’ll show you how to enable SSL for your WordPress blog using a free SSL certificate from Let’s Encrypt. Let’s get started! […]
Hey there! So, you want to set up your own WordPress blog with Docker Compose? You’ve come to the right place! I’ll walk you through the whole process, and you’ll have your blog up and running in no time. Trust me, it’s way easier than you think. Step 1: Install […]