July 2019 - Page 29 of 69

How to Manage Active Directory Replication on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Manage Active Directory Replication on Windows Server 2016

How to Configure Windows Server 2016 Active Directory Replication Active Directory replication is the process by which changes made on one Domain Controller are propagated to all other Domain Controllers in the domain and forest. Reliable replication is critical — without it, authentication failures, inconsistent policy application, and stale directory data can occur. Windows Server […]

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How To Use the LESS CSS Preprocessor on an Ubuntu VPS — step-by-step Linux tutorial on Progressive Robot

How To Use the LESS CSS Preprocessor on an Ubuntu VPS

In this tutorial, we will see how you can install LESS and get started using it on the server-side. For this, it assumes you are already running your own VPS with Ubuntu and a web server installed on it if you want to see something in the browser (but not necessary at this level). Additionally, you will have to install Node.js and NPM (Node Package Manager).

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SLES 15 — pam-modules — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — pam-modules — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2018:1760-1 (see also SUSE bugzilla) Related CVEs: CVE-2011-3172 Upstream summary: A vulnerability in pam_modules of SUSE Linux Enterprise allows attackers to log into accounts that should have been disabled. Affected releases are […]

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How to Configure Windows Server 2019 Active Directory Schema — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Windows Server 2019 Active Directory Schema

How to Configure Windows Server 2019 Active Directory Schema The Active Directory schema defines all object classes and attributes that can exist in the directory. It is the blueprint that governs what data Active Directory stores about every object — users, computers, groups, and any custom object types. The schema is stored in a dedicated […]

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Amazon Linux 2 — libvirt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libvirt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1274 Related CVEs: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-10132 CVE-2019-10161 CVE-2019-10166 CVE-2019-10167 CVE-2019-10168  +12 more Upstream summary: Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially […]

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Common Problems 118603

Ubuntu 16.04 LTS – cron jobs stop running after timezone changes – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 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 […]

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Common Problems 117954

Ubuntu 18.04 high CPU usage from background indexing

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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