Troubleshooting

How to Use the Active Directory Migration Tool on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Use the Active Directory Migration Tool on Windows Server 2016

How to Configure Windows Server 2016 Active Directory Migration Tool The Active Directory Migration Tool (ADMT) is a Microsoft utility used to migrate users, groups, computers, and service accounts between Active Directory domains. In Windows Server 2016 environments, ADMT version 3.2 is the supported release and is commonly used for domain consolidation, domain restructuring, mergers […]

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Common Problems 121144

Debian 10: NFS mounts hang during boot

🟠 High   ⏱ 5–30 min  Last verified: 22 April 2020 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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Common Problems 118522

Ubuntu 16.04 LVM Volume Not Found During Startup

🟡 Medium   ⏱ 5–30 min  Last verified: 22 April 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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How to Configure dnsmasq on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure dnsmasq on FreeBSD 12

Introduction This guide explains how to Configure dnsmasq on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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openSUSE Tumbleweed — python-dulwich — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python-dulwich — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory Related CVEs: CVE-2015-0838 Upstream summary: Buffer overflow in the C implementation of the apply_delta function in _pack.c in Dulwich before 0.9.9 allows remote attackers to execute arbitrary code via a crafted […]

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Common Problems 118103

Docker Daemon Permission Denied to /var/run/docker.sock

🟡 Medium   ⏱ 5–30 min  Last verified: 22 April 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 115094

Python Module Not Found After Installation

🟡 Medium   ⏱ 5–30 min  Last verified: 22 April 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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FreeBSD 12 — zh-xemacs — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — zh-xemacs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 April 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: emacs — movemail format string vulnerability Related CVEs: CVE-2005-0100 Upstream summary: Max Vozeler discovered several format string vulnerabilities in the movemail utility of Emacs. They can be exploited when connecting […]

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Common Problems 114948

RHEL 8 Chronyd Not Synchronizing Time With NTP Sources

🟡 Medium   ⏱ 5–30 min  Last verified: 22 April 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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How to Install Perl and CPAN Modules on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Perl and CPAN Modules on Debian 10

Introduction This guide explains how to Install Perl and CPAN Modules on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]

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