IT, Cloud & DevOps Blog

How to Extend the Active Directory Schema on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Extend the Active Directory Schema on Windows Server 2016

How to Set Up Windows Server 2016 Schema Extensions The Active Directory schema defines all object classes and attributes that can exist in a directory. Every user, group, computer, or custom object in Active Directory must conform to a class defined in the schema. Windows Server 2016 allows administrators and application developers to extend the […]

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Gentoo Linux — net-p2p/bitcoin-cli — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-p2p/bitcoin-cli — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202009-18 Related CVEs: CVE-2019-15947 CVE-2020-14198 Upstream summary: Multiple vulnerabilities have been discovered in Bitcoin. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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Common Problems 117389

Ubuntu 20.04 Wi-Fi disconnects or fails to reconnect

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 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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Common Problems 117939

Ubuntu 18.04 LTS Disk Full on Root Partition

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2020 Affected versions: 18.04 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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How to Set Up a Node.js Forever Process Manager on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up a Node.js Forever Process Manager on Debian 10

Introduction How to Set Up a Node.js Forever Process Manager on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ […]

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openSUSE Tumbleweed — guile — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — guile — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2023:0137-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-8605 CVE-2016-8606 Upstream summary: The mkdir procedure of GNU Guile temporarily changed the process' umask to zero. During that time window, in a multithreaded application, […]

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Common Problems 112391

Windows Server 2019 — Active Directory replication fails with RPC error 1722 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2020 Affected versions: Windows Server 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 […]

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What's New in Debian 10 Buster — step-by-step Linux tutorial on Progressive Robot

What’s New in Debian 10 Buster

This guide is a brief overview of the new features and significant changes to Debian 10 Buster since the previous Debian release. It focuses mainly on changes that will affect users running Debian in a typical server environment.

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What is a Socket? — step-by-step DevOps tutorial on Progressive Robot

What is a Socket?

Sockets are a way to enable inter-process communication between programs running on a computer, or between programs running on separate computers. Programs that communicate via network sockets typically rely on using the Internet Protocol (IP) to send and receive data.

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FreeBSD 12 — botan — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — botan — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: botan2 — Side channel during ECC key generation Related CVEs: CVE-2014-9742 CVE-2015-5726 CVE-2015-5727 CVE-2015-7827 CVE-2016-2194 CVE-2016-2195 CVE-2016-2849 CVE-2018-12435  +1 more Upstream summary: botan2 developers reports: A timing side channel during […]

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