web server

Common Problems 115081

RHEL 8 Cockpit Web Console Unreachable After Firewall Policy Change

🟡 Medium   ⏱ 5–30 min  Last verified: 4 September 2019 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Build and Deploy a Go Web Application on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Build and Deploy a Go Web Application on RHEL 7

How to Build and Deploy a Go Web Application on RHEL 7 Go’s standard library includes a production-capable HTTP server in the net/http package. Unlike Java or Python, you do not need an external application server or framework to serve web traffic — the Go runtime handles it natively with impressive performance. This guide covers […]

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How to Deploy a Django Application with Gunicorn and Nginx on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy a Django Application with Gunicorn and Nginx on RHEL 8

Django is one of the most popular Python web frameworks, and deploying it in production requires more than the built-in development server. The recommended production stack on RHEL 8 pairs Django with Gunicorn as the WSGI application server and Nginx as a reverse proxy that handles static files, TLS termination, and connection management. This tutorial […]

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How to Write Ansible Playbooks for Server Automation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Write Ansible Playbooks for Server Automation on RHEL 7

How to Write Ansible Playbooks for Server Automation on RHEL 7 Ansible playbooks are the heart of infrastructure automation. While ad-hoc commands are useful for one-off tasks, playbooks allow you to describe a desired system state in YAML and apply it repeatably and idempotently across your entire fleet. A well-written playbook can provision a complete […]

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How to Install Jenkins on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Jenkins on RHEL 7

How to Install Jenkins on RHEL 7 Jenkins is the leading open-source automation server, used by development teams worldwide to build, test, and deploy software continuously. On Red Hat Enterprise Linux 7, getting Jenkins running requires a few deliberate steps: installing the correct version of Java, adding the official Jenkins repository, starting the service, and […]

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How to Configure Nginx Rate Limiting and Connection Throttling on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Nginx Rate Limiting and Connection Throttling on RHEL 8

Rate limiting and connection throttling are essential defences against brute-force attacks, credential stuffing, and high-volume web scrapers. Nginx provides two built-in modules — ngx_http_limit_req_module for request-rate limiting and ngx_http_limit_conn_module for connection limiting — both compiled into the default binary. On RHEL 8 these capabilities are available immediately after installing Nginx from the AppStream module stream […]

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How to Deploy a Spring Boot Application on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy a Spring Boot Application on RHEL 8

Spring Boot is the most popular framework for building production-ready Java applications, and RHEL 8 provides an excellent foundation for running them as long-lived services. In this tutorial you will create a Spring Boot application using Maven, package it into a self-contained executable JAR, configure it to run as a systemd service with a dedicated […]

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How to Monitor Nginx Access Logs with GoAccess on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Monitor Nginx Access Logs with GoAccess on RHEL 8

GoAccess is an open-source, real-time web log analyzer that generates interactive HTML reports and live terminal dashboards directly from Nginx access logs. It requires no database, no JavaScript framework, and no persistent service — a single command can parse millions of log entries in seconds. On RHEL 8 the package is available from the EPEL […]

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How to Install Java (OpenJDK) on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Java (OpenJDK) on RHEL 8

Java is one of the most widely used programming languages in enterprise software, and RHEL 8 makes it straightforward to install and manage multiple Java versions through its built-in package manager. Whether you are building web applications, microservices, or command-line tools, having a proper Java development environment is the first step. In this tutorial you […]

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How to Set Up IIS Logging and Log Analysis on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up IIS Logging and Log Analysis on Windows Server 2012 R2

How to Set Up IIS Logging and Log Analysis on Windows Server 2012 R2 Internet Information Services (IIS) on Windows Server 2012 R2 maintains detailed access logs recording every HTTP request processed by the web server. These logs are essential for security auditing, performance analysis, troubleshooting application errors, and understanding traffic patterns. IIS supports multiple […]

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