web server

How to Configure Nginx as a TCP/UDP Load Balancer on Debian 10 (DEBIAN-10-2)

• March 21, 2020
• Linux
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Introduction Deploying configure nginx as a tcp/udp load balancer on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. […]

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Windows Server 2012 R2 — Component store partial rebuild leaves features missing after restore — Fix & Prevention

• March 20, 2020
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 20 March 2020 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 […]

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How to Manage Service Accounts in Active Directory on Windows Server 2012 R2

• March 19, 2020
• Tutorials
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How to Manage Service Accounts in Active Directory on Windows Server 2012 R2 Service accounts are domain accounts used by applications, services, and automated tasks to authenticate to Windows resources. Poorly managed service accounts are one of the most common attack vectors in enterprise environments — they often have excessive privileges, passwords that never expire, […]

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How to Manage Docker Images and Containers on RHEL 7

• March 18, 2020
• Linux
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How to Manage Docker Images and Containers on RHEL 7 Effective day-to-day use of Docker requires a solid command of image and container management. Images are the read-only blueprints from which containers are created; containers are the running (or stopped) instances of those images. Over time, a Docker host accumulates pulled images, stopped containers, dangling […]

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How to Set Up a LAMP Stack on RHEL 8

• March 15, 2020
• Linux
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A LAMP stack — Linux, Apache, MariaDB, and PHP — is one of the most widely deployed web server configurations in enterprise environments. RHEL 8 ships with the tools needed to install and configure each component using dnf and its module system. This tutorial walks you through installing and securing a fully functional LAMP stack […]

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Windows Server 2016 — IIS W3SVC service fails after certificate change — Fix & Prevention

• March 13, 2020
• Tutorials
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🟠 High   ⏱ 5–30 min  Last verified: 13 March 2020 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 […]

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RHEL 8 SELinux Denying httpd Access to Custom Content Path

• March 10, 2020
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 10 March 2020 📖 ~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 Configure Nginx Load Balancing on RHEL 7

• March 10, 2020
• Linux
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How to Configure Nginx Load Balancing on RHEL 7 As web applications grow in traffic, a single backend server eventually becomes a bottleneck. Nginx’s upstream module provides built-in load balancing that distributes incoming requests across multiple backend servers, improving throughput, redundancy, and fault tolerance. Unlike Nginx Plus, the open-source version included in RHEL 7’s EPEL […]

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RHEL 7 Requires SELinux Relabel After Filesystem Restore

• March 8, 2020
• Linux
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🟠 High   ⏱ 5–30 min  Last verified: 8 March 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 Set Up IIS URL Rewrite on Windows Server 2019

• March 8, 2020
• Tutorials
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Introduction to IIS URL Rewrite on Windows Server 2019 The IIS URL Rewrite module is a powerful extension for IIS 10 on Windows Server 2019 that allows server-side manipulation of incoming request URLs before they are processed. URL Rewrite is used for canonicalising URLs (removing or adding trailing slashes, enforcing lowercase), redirecting HTTP to HTTPS, […]

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