Proxy

How to Configure System Center Operations Manager Agent on Windows Server 2012 R2

• June 30, 2020
• Tutorials
• Comment off

How to Configure System Center Operations Manager Agent on Windows Server 2012 R2 System Center Operations Manager (SCOM) is Microsoft’s enterprise monitoring solution that provides comprehensive, agent-based monitoring of Windows servers, applications, network infrastructure, and services. The SCOM agent installed on each managed server collects performance data, event log entries, and application health information, forwarding […]

Read more

How to Set Up Nginx as a Reverse Proxy on Debian 10

• June 29, 2020
• Linux
• Comment off

Introduction Deploying set up nginx as a reverse proxy 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. […]

Read more

yum fails with Cannot retrieve metalink

• June 26, 2020
• Tutorials
• Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 26 June 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 […]

Read more

yum Metadata Expired and Repositories Stay Stale

• June 25, 2020
• Tutorials
• Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 25 June 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 […]

Read more

How to Configure IIS Logging on Windows Server 2016

• June 20, 2020
• Tutorials
• Comment off

How to Configure IIS Logging and Analysis on Windows Server 2016 Internet Information Services (IIS) on Windows Server 2016 generates detailed access logs that record every HTTP request, response code, bytes transferred, time taken, client IP, and user agent. Properly configured IIS logging is essential for security auditing, performance troubleshooting, SEO analysis, capacity planning, and […]

Read more

RHEL 8 Cockpit Web Console Unreachable from Network

• June 15, 2020
• Linux
• Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 15 June 2020 Affected versions: 8.5 8.6 8.7 8.8 8.9 8.10 📖 ~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 & […]

Read more

How to Configure Nginx Server Blocks (Virtual Hosts) on RHEL 8

• June 15, 2020
• Linux
• Comment off

Nginx server blocks — equivalent to Apache’s virtual hosts — allow a single Nginx instance to serve multiple websites from one server. Each server block defines a distinct configuration scope that responds to specific domain names or IP addresses. On RHEL 8, additional server block configuration files are stored under /etc/nginx/conf.d/ and automatically loaded by […]

Read more

How to Install and Configure Consul for Service Discovery on RHEL 7

• June 13, 2020
• Linux
• Comment off

How to Install and Configure Consul for Service Discovery on RHEL 7 As applications grow beyond a single server, tracking where every service is running — and whether it is healthy — becomes a significant operational challenge. Consul, developed by HashiCorp, is a distributed, highly available service mesh and service discovery tool that solves this […]

Read more

Ubuntu 14.04 LTS PHP-FPM Pool Exhaustion Causes 502 Errors

• June 10, 2020
• Linux
• Comment off

🟠 High   ⏱ 5–30 min  Last verified: 10 June 2020 Affected versions: 14.04 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 NAT on Windows Server 2016

• June 6, 2020
• Tutorials
• Comment off

How to Set Up Windows Server 2016 NAT Network Address Translation (NAT) allows multiple devices on a private network to share a single public IP address when connecting to the internet. Windows Server 2016 supports NAT in two ways: through the Routing and Remote Access Service (RRAS), which provides enterprise-grade NAT with logging and policy […]

Read more