Yearly Archives: 2026

Configuring a Reverse Proxy on a Linux VM Using NGINX

Introduction  In many Linux-based environments, applications are deployed on separate virtual machines or run on different ports of the same VM. While this approach offers flexibility, it also introduces operational…

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Postgresql Installation

POSTGRESQL INSTALLATION ON WINDOWS   PURPOSE AND SCOPE   This document focuses exclusively on the installation of PostgreSQL. It outlines the purpose of installing PostgreSQL and defines the scope limited…

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SQL Server Index Maintenance

SQL Server Index Maintenance: Improving Query Performance PURPOSE AND SCOPE This document explains the importance of index maintenance in SQL Server and demonstrates how to identify and resolve index fragmentation…

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Oracle GoldenGate Installation on Linux 

Oracle GoldenGate Installation on Linux  Introduction  Oracle GoldenGate is a real-time data integration and replication tool that enables reliable, secure, and high-performance data movement across heterogeneous systems. It is widely used for real-time reporting,…

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Hybrid DNS Patterns for Private Endpoints in Multi‑Site Setups

Introduction / Issue: In multi‑site and hybrid environments, clients sometimes resolve Azure PaaS FQDNs to public endpoints instead of the Private Endpoint (PE) IP, breaking connectivity when public access is…

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Red Hat Insights – Proactive Monitoring & Predictive Analytics

Introduction/ Issue Operating large fleets of Red Hat Enterprise Linux (RHEL) systems across hybrid cloud and on‑premises environments introduces hidden risks—unpatched CVEs, configuration drift, and gradual performance degradation. Traditional monitoring…

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Setting Up Azure Monitor and Alerts for Proactive Incident Detection

Introduction / Issue  In modern cloud environments, infrastructure reliability depends heavily on continuous monitoring. Virtual machines, storage accounts, databases, and network components must remain healthy to ensure uninterrupted application availability. However,…

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Recovering Deleted Files Using Snapshot Backups in Linux

Introduction / Issue  Accidental file deletion is a common risk in production environments. Even experienced administrators can mistakenly remove critical files during maintenance activities. In one instance, important application configuration…

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Oracle Data Guard Setup in Oracle 23ai Migrating from Non-CDB (Primary) to CDB (Standby)

Introduction This document explains how to configure a normal Oracle Data Guard physical standby in Oracle Database 23ai, where the primary database is a Non-CDB and the standby database is…

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Step by Step Guide to Oracle Data Guard Broker (DGMGRL)

Introduction High availability and predictable disaster recovery are critical in any Oracle production environment. While managing Data Guard manually via SQL*Plus is possible, the number of manual steps during incidents…

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