Firewall

How to Set Up a Go Web Application on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up a Go Web Application on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up a Go Web Application on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system […]

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How to Configure SELinux Boolean Settings on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure SELinux Boolean Settings on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying configure selinux boolean settings on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure SELinux Boolean Settings on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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How to Configure SELinux Policies on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure SELinux Policies on Oracle Linux 8

Introduction Setting up configure selinux policies on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure SELinux Policies on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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How To Use psad to Detect Network Intrusion Attempts on an Ubuntu VPS — step-by-step Linux tutorial on Progressive Robot

How To Use psad to Detect Network Intrusion Attempts on an Ubuntu VPS

A network intrusion detection application can monitor your network interfaces for suspicious traffic and attempted security breaches. In this guide, we will configure a tool called psad to monitor our firewall logs and determine if there is a problem. We will be configuring psad on an Ubuntu 12.04 machine to detect intrusion attempts on our servers.

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How to Monitor MySQL with Prometheus on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Monitor MySQL with Prometheus on FreeBSD 12

Introduction This guide explains how to Monitor MySQL with Prometheus on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

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How to Configure Network Bonding on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Network Bonding on Oracle Linux 8

Introduction How to Configure Network Bonding on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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Common Problems 115489

RHEL 7 NFS mount fails during boot because network dependency ordering is wrong

🟠 High   ⏱ 5–30 min  Last verified: 24 December 2020 Affected versions: RHEL 7 📖 ~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 & […]

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How to Configure Redis Cluster on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Redis Cluster on Oracle Linux 8

Introduction This tutorial demonstrates how to Configure Redis Cluster on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with the default […]

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How to Configure GRE Tunnel Interfaces on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure GRE Tunnel Interfaces on Windows Server 2016

How to Set Up Windows Server 2016 GRE Tunnel Interface Generic Routing Encapsulation (GRE) is a tunnelling protocol that encapsulates a wide variety of network layer protocols inside virtual point-to-point links. Windows Server 2016 introduces native GRE tunnel support through the RAS Gateway, enabling organisations to create lightweight, stateless tunnels between gateway endpoints without the […]

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Common Problems 118962

Ubuntu 14.04 LTS NTP drift causes significant system clock skew

🟡 Medium   ⏱ 5–30 min  Last verified: 23 December 2020 Affected versions: 14.04 📖 ~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 […]

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