chris

Common Problems 112972

Windows Server 2016 — DHCP NACK storms after VLAN resegmentation create widespread endpoint disconnects — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 31 December 2021 Affected versions: Windows Server 2016 📖 ~2 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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Debian 11 — neon27 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — neon27 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-3746 CVE-2009-2474 Upstream summary: neon 0.28.0 through 0.28.2 allows remote servers to cause a denial of service (NULL pointer dereference and crash) via vectors related to Digest authentication, […]

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How to Set Up FreeBSD Jails with iocage on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up FreeBSD Jails with iocage on FreeBSD 13

Introduction This guide explains how to Set Up FreeBSD Jails with iocage on FreeBSD 13 on FreeBSD 13. 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 […]

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FreeBSD 13 — unzoo — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — unzoo — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: unzoo — Directory Traversal Vulnerability Upstream summary: Secunia reports: Doubles has discovered a vulnerability in Unzoo, which potentially can be exploited by malicious people to compromise a user's system. The […]

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Debian 11 — irssi-scripts — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — irssi-scripts — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-4396 CVE-2007-4398 Upstream summary: Multiple CRLF injection vulnerabilities in (1) ixmmsa.pl 0.3, (2) l33tmusic.pl 2.00, (3) mpg123.pl 0.01, (4) ogg123.pl 0.01, (5) xmms.pl 2.0, (6) xmms2.pl 1.1.3, and […]

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FreeBSD 13 — dircproxy-devel — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — dircproxy-devel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: dircproxy — remote denial of service Related CVEs: CVE-2007-5226 Upstream summary: Securiweb reports: dircproxy allows remote attackers to cause a denial of service (segmentation fault) via an ACTION command without […]

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Arch Linux — thefuck — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — thefuck — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-39 Related CVEs: CVE-2021-34363 Upstream summary: Type: arbitrary file overwrite. Status: Fixed. Affected: 3.30-3. Fixed in: 3.31-1. Group: AVG-2062. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 11 — elinks — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — elinks — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-5925 CVE-2007-2027 CVE-2007-5034 CVE-2008-7224 CVE-2012-4545 CVE-2012-6709 Upstream summary: Links web browser 1.00pre12 and Elinks 0.9.2 with smbclient installed allows remote attackers to execute arbitrary code via shell metacharacters […]

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How to Set Up Centralised Log Collection with Windows Event Collector on Windows Server 2012 R2 — Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Centralised Log Collection with Windows Event Collector on Windows Server 2012 R2

How to Set Up Centralised Log Collection with Windows Event Collector on Windows Server 2012 R2 Windows Event Collector (WEC) is a built-in Windows Server 2012 R2 service that enables centralised collection of Windows event log entries from multiple source computers into a single collector server. This eliminates the need to log into each individual […]

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