Networking

Common Problems 113412

Windows Server 2012 R2 NTFS MFT Fragmentation Causing Slow File Enumeration – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 12 March 2023 Affected versions: Windows Server 2012 R2 📖 ~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 […]

Read more
How to Configure Jaeger Distributed Tracing on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Jaeger Distributed Tracing on Oracle Linux 9

Introduction How to Configure Jaeger Distributed Tracing on Oracle Linux 9 on Oracle Linux 9 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 […]

Read more
How To Secure Consul with TLS Encryption on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Secure Consul with TLS Encryption on Ubuntu 14.04

Consul is a flexible service discovery system that can be used to keep track of the existence and health of services available in your infrastructure. In previous guides, we discussed how to set up the base Consul system. In this guide, we will demonstrate how to secure the communications between different components using TLS to encrypt traffic.

Read more
How to Configure Multi-Site Active Directory on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Multi-Site Active Directory on Windows Server 2022

Understanding Active Directory Sites and Services Active Directory Sites and Services is a Microsoft Management Console (MMC) snap-in and a core component of Active Directory that controls how directory replication occurs across a distributed network. An AD site is a logical representation of a physical network location — typically corresponding to a geographical location, a […]

Read more
Common Problems 118511

Ubuntu 16.04 LTS – network settings reset leaves server without persistent DNS – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 11 March 2023 Affected versions: Ubuntu 16.04 LTS 📖 ~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 […]

Read more
How to Set Up ClamAV Antivirus on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up ClamAV Antivirus on Oracle Linux 9

Introduction Setting up set up clamav antivirus on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up ClamAV Antivirus on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]

Read more
How to Install OpenVPN on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install OpenVPN on FreeBSD 12

Introduction Deploying install openvpn on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + […]

Read more
How to Install Zabbix on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Zabbix on RHEL 9

Zabbix is a mature, enterprise-grade open-source monitoring solution capable of tracking thousands of servers, virtual machines, network devices, and applications from a single web interface. It supports agent-based and agentless monitoring, flexible alerting, and detailed graphing out of the box. This tutorial installs Zabbix 6.4 on RHEL 9 using MySQL (MariaDB) as the backend database […]

Read more
Common Problems 117401

Ubuntu 20.04 LTS DNS Resolution Fails Intermittently

🟡 Medium   ⏱ 5–30 min  Last verified: 10 March 2023 Affected versions: 20.04 LTS 📖 ~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 & […]

Read more
Common Problems 112926

Windows Server 2016 SMB File Server Latency Spikes During Backup Window – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 10 March 2023 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
CHAT