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Common Problems 118013

Ubuntu 18.04 LTS Netplan apply breaks remote connectivity

🟡 Medium   ⏱ 5–30 min  Last verified: 28 January 2022 📖 ~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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break-fix vs managed IT cost - break fix vs managed it cost comparison a two cost towers side by side

Break-Fix vs Managed IT Cost: Proven 5-Year Risk Guide

Break-fix support looks cheaper for a year, then stops being cheaper. This guide runs the full five-year comparison for a 60-user business: what each model bills in year one, where the two lines cross in years two and three, what compounds in years four and five, and the hidden costs — internal time, downtime, deferred replacement, insurance and compliance — that never reach a support invoice. It closes with a worked example and a method for rebuilding the model with your own numbers.

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FreeBSD 13 — pdftohtml — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pdftohtml — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xpdf — stack based buffer overflow Related CVEs: CVE-2004-1125 CVE-2005-0064 CVE-2007-3387 Upstream summary: The KDE Team reports: kpdf, the KDE pdf viewer, shares code with xpdf. xpdf contains a vulnerability […]

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FreeBSD 12 — py311-tflite — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-tflite — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 January 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-tflite — buffer overflow vulnerability Related CVEs: CVE-2021-37689 CVE-2022-41894 Upstream summary: Thibaut Goetghebuer-Planchon reports: The reference kernel of the CONV_3D_TRANSPOSE TensorFlow Lite operator wrongly increments the data_ptr when adding the […]

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How to Set Up Buildkite Agent on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Buildkite Agent on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up buildkite agent on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Buildkite Agent on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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FreeBSD 12 — rubygem-rdoc — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — rubygem-rdoc — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 January 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: RDoc — command injection vulnerability Related CVEs: CVE-2012-6708 CVE-2015-9251 CVE-2021-31799 Upstream summary: Alexandr Savca reports: RDoc used to call Kernel#open to open a local file. If a Ruby project has […]

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Common Problems 112419

Windows Server 2019 — DNS scavenging does not remove stale records — Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 28 January 2022 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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Debian 11 — sa-exim — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — sa-exim — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-1251 CVE-2019-19920 Upstream summary: Argument injection vulnerability in greylistclean.cron in sa-exim 4.2 allows remote attackers to delete arbitrary files via an email with a To field that contains […]

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