How to Diagnose and Fix Slow DNS Resolution on Linux
Improve Linux network performance by diagnosing and fixing slow DNS resolution. Learn step-by-step troubleshooting, CLI commands, and configuration fixes to speed up DNS lookups on any Linux distribution. Table of Contents đIntroduction Slow DNS resolution can make even the fastest Linux system feel sluggish. When domain lookups stall, websites load slowly, package managers hang on […]
How to Set Up a RHEL 9 Workstation for Creative Professionals
Learn how to set up a RHEL 9 workstation for creative professionals, with step-by-step instructions for installing essential software, optimizing performance, and creating a smooth, efficient workflow. Table of Contents đIntroduction Red Hat Enterprise Linux (RHEL) is known for its stability and security, making it an excellent choice for developers and system administrators. However, RHEL […]
Understanding Enterprise Network Infrastructure: From Perimeter to Core
A complete guide to enterprise network infrastructureâcovering DMZ, firewalls, core networks, and hybrid cloud integration. Includes best practices, CLI examples, and design tables for IT professionals. Table of Contents đIntroduction In todayâs digital enterprise, the network infrastructure is the foundation that supports communication, application delivery, and cybersecurity. As organizations scale and hybridize their environments, a […]
How to Build a Responsive Dashboard with React and Tailwind CSS on RHEL 9 | CentOS 9
Learn how to build a responsive React dashboard with Tailwind CSS on RHEL 9 or CentOS Stream 9. Includes CLI commands, deployment tips, and full code examples. Table of Contents đIntroduction Deploying modern frontend applications in enterprise environments like RHEL 9 or CentOS Stream 9 comes with its own challenges, from package management to security […]
Splunk Email Security Risk: How to Fix allowedDomainList Warning in alert_actions.conf
Learn how to fix the Splunk allowedDomainList security warning in alert_actions.conf. Prevent unauthorized alert emails and protect sensitive data by configuring domain restrictions correctly. Table of Contents đIntroduction Splunk administrators often encounter a critical security warning: â ď¸Â Found an empty value for ‘allowedDomainList’ in the alert_actions.conf configuration file. This alert points to a significant security misconfiguration […]
Install Splunk on RHEL 9 or CentOS 9: A Beginner’s Guide
Learn how to install Splunk on RHEL9 or CentOS 9 with this beginner-friendly guide. Step-by-step instructions, CLI examples, and troubleshooting tips included. Table of Contents đIntroduction Splunk is one of the most widely-used platforms for searching, monitoring, and analyzing machine-generated big data. Whether youâre managing logs, monitoring system performance, or troubleshooting issues, Splunk is an […]
Install MongoDB on RHEL 10 | CentOS 10
Learn how to install MongoDB (Community or Enterprise) on RHELâŻ10 / CentOSâŻ10 with stepâbyâstep repository setup, CLI commands, SELinux tips, and troubleshooting.â Table of Contents đIntroduction MongoDB is a leading NoSQL document database often used in production and development environments. If your organization is running RHEL 10 or CentOS 10, you may want to deploy […]
Install XRDP on Ubuntu 24.04 for Remote Desktop Access
Learn how to install and configure XRDP on Ubuntu 24.04 LTS to enable secure remote desktop access from Windows, macOS, or Linux. Stepâbyâstep setup with firewall rules, troubleshooting tips and performance/security best practices. Table of Contents đIntroduction Remote desktop access to Linux machines is essential for administrators, remote workers, developers, or anyone needing GUI access […]
How to Set Up a Syslog Server on RHEL 9 and CentOS 9
Learn how to set up a Syslog server on RHEL 9 and CentOS 9. Follow this step-by-step guide to collect, store, and manage log data from multiple devices in your network. Table of Contents đIntroduction Setting up a Syslog server on RHEL 9 and CentOS 9 is a critical step for system administrators and security […]
Install RHELâŻ10 Workstation in 12 Easy Steps
Learn how to install RHELâŻ10 Workstation in 12 easy, stepâbyâstep instructionsâfrom downloading the ISO to postâinstall configuration, complete with CLI examples and practical tips. Table of Contents đIntroduction RedâŻHat Enterprise Linux (RHEL) 10 Workstation is a powerful, enterprise-grade operating system tailored for developers, sysadmins, and professionals. This guide walks you through installing RHELâŻ10 Workstation in 12 […]