April 2020 - Page 58 of 66

Image Processing Part 5: Arithmetic, Bitwise, and Masking — step-by-step AI And Machine Learning tutorial on Progressive Robot

Image Processing Part 5: Arithmetic, Bitwise, and Masking

In this 5th part of the image processing series, we discuss more on the Arithmetic and bitwise operations, and masking of images in Python. It is recommended that the [previous articles](/community/tutorials/image-transformation-with-python-opencv) be run through, before starting off on your masked learning adventure here. Setting up the environment The following lines of code are used in […]

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How to Write Advanced PowerShell Scripts for Windows Server Administration — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Write Advanced PowerShell Scripts for Windows Server Administration

How to Write Advanced PowerShell Scripts for Windows Server Administration on Windows Server 2025 PowerShell remains the definitive automation language for Windows Server administrators, and Windows Server 2025 brings even greater opportunity to leverage its full depth. Moving beyond basic cmdlet usage into advanced scripting patterns — robust parameter validation, structured error handling, pipeline-friendly functions, […]

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Common Problems 121162

Debian 10 – Docker or containerd fails after cgroup v2 migration

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Debian 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 & Hardening Related Errors & […]

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openSUSE Tumbleweed — libimobiledevice6 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libimobiledevice6 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2013-2142 Upstream summary: userpref.c in libimobiledevice 1.1.4, when $HOME and $XDG_CONFIG_HOME are not set, allows local users to overwrite arbitrary files via a symlink attack […]

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openSUSE Tumbleweed — terraform — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — terraform — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:0320-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-19316 Upstream summary: When using the Azure backend with a shared access signature (SAS), Terraform versions prior to 0.12.17 may transmit the token and state […]

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Common Problems 118514

Ubuntu 16.04 LTS failed unattended-upgrades lock prevents manual patching

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 16.04 📖 ~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 […]

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openSUSE Tumbleweed — librttopo1 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — librttopo1 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:10042-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-18359 Upstream summary: PostGIS 2.x before 2.3.3, as used with PostgreSQL, allows remote attackers to cause a denial of service via crafted ST_AsX3D function input, […]

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How to Set Up the ELK Stack on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up the ELK Stack on SLES 15

Introduction This tutorial covers How to Set Up the ELK Stack on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: […]

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Common Problems 114607

systemd Unit Start Times Out Waiting For Dependencies

🟡 Medium   ⏱ 5–30 min  Last verified: 20 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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