Mail Services

How to Configure Certificate Auto-Enrollment via Group Policy on Windows Server 2012 R2

• September 14, 2019
• Tutorials
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How to Configure Certificate Auto-Enrollment via Group Policy on Windows Server 2012 R2 Certificate auto-enrollment allows domain computers and users to automatically request, receive, and renew digital certificates from an Enterprise CA without any manual intervention. This eliminates the administrative burden of manually issuing certificates to hundreds or thousands of devices and users, ensures certificates […]

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How to Set Up System Center Operations Manager (SCOM) on Windows Server 2019

• September 12, 2019
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Introduction to System Center Operations Manager System Center Operations Manager (SCOM) is Microsoft’s enterprise monitoring platform designed for large-scale Windows environments. It uses management packs — extensible plug-ins — to provide out-of-the-box monitoring intelligence for Windows Server operating systems, SQL Server, IIS, Active Directory, Hyper-V, and hundreds of third-party applications. SCOM uses agents deployed to […]

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How to Configure System Center Operations Manager on Windows Server 2016

• August 27, 2019
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How to Set Up Windows Server 2016 Operations Manager System Center Operations Manager (SCOM) is Microsoft’s enterprise monitoring platform for Windows Server, Linux, network devices, and applications. SCOM uses management packs containing pre-built knowledge about specific technologies to automatically discover components, apply monitoring rules, generate alerts, and produce performance data. Deployed on Windows Server 2016, […]

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How to Set Up File Server Resource Manager (FSRM) on Windows Server 2012 R2

• August 18, 2019
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How to Set Up File Server Resource Manager (FSRM) on Windows Server 2012 R2 File Server Resource Manager (FSRM) is a Windows Server 2012 R2 role service that provides granular control over file storage through disk quotas, file screening, storage reports, and classification rules. FSRM enables administrators to enforce storage policies that prevent individual users […]

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How to Install and Configure Postfix Mail Server on RHEL 8

• August 17, 2019
• Linux
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Postfix is a high-performance, security-focused Mail Transfer Agent (MTA) that ships with RHEL 8 and is the default replacement for Sendmail. It handles the delivery of outbound email and, when configured correctly, accepts inbound mail for local users. Understanding Postfix is foundational for any RHEL administrator who needs to send system alerts, application notifications, or […]

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RHEL 8 postfix Service Active but Not Listening on Expected Interface

• July 23, 2019
• Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 23 July 2019 📖 ~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 Install GitLab CE on RHEL 8

• June 26, 2019
• Linux
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GitLab Community Edition is a full-featured, self-hosted DevOps platform combining Git repository management, issue tracking, CI/CD pipelines, and a container registry in a single application. Running GitLab CE on RHEL 8 gives you complete control over your source code and pipeline infrastructure without relying on third-party SaaS providers. This tutorial covers installing GitLab CE from […]

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How to Monitor Windows Server with Prometheus and Grafana on Windows Server 2019

• June 21, 2019
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Introduction to Prometheus and Grafana Monitoring on Windows Server 2019 Prometheus is an open-source time-series monitoring system originally developed at SoundCloud, now a Cloud Native Computing Foundation (CNCF) project. It collects metrics by scraping HTTP endpoints exposed by exporters on monitored systems. Grafana is a visualization and dashboarding platform that queries Prometheus (and many other […]

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How to Manage Systemd Services and Units on RHEL 7

• June 17, 2019
• Linux
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How to Manage Systemd Services and Units on RHEL 7 Red Hat Enterprise Linux 7 made a significant shift from the traditional SysVinit and Upstart initialization systems to systemd as the default init system. Systemd is a comprehensive system and service manager that controls how services start, stop, and interact with the rest of the […]

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How to Use Robocopy for Scheduled File Backups on Windows Server 2012 R2

• June 8, 2019
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How to Use Robocopy for Scheduled File Backups on Windows Server 2012 R2 Robocopy (Robust File Copy) is a command-line file copy tool built into Windows Server 2012 R2 that provides significantly more functionality than standard copy or xcopy commands. Its combination of multi-threaded operation, mirror mode, restart capability, file attribute preservation, and detailed logging […]

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