chris

Common Problems 117962

Snapd Service Fails to Start

🟡 Medium   ⏱ 5–30 min  Last verified: 14 June 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 & Cross-Refs References & Further […]

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How to Scan for Vulnerabilities with OpenVAS on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Scan for Vulnerabilities with OpenVAS on FreeBSD 12

Introduction This guide explains how to Scan for Vulnerabilities with OpenVAS 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 […]

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Common Problems 115018

RHEL 8 Boots Old Kernel After Successful Update

🟡 Medium   ⏱ 5–30 min  Last verified: 14 June 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 & Cross-Refs References & Further […]

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Amazon Linux 2 — geronimo-jaxrpc — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — geronimo-jaxrpc — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2020-1524 Related CVEs: CVE-2018-11440 CVE-2018-11577 CVE-2018-11684 CVE-2018-11685 CVE-2018-12085 Upstream summary: Liblouis 3.5.0 has a Segmentation fault in lou_logPrint in logging.c. (CVE-2018-11577) Liblouis 3.5.0 has a stack-based Buffer Overflow in the […]

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Common Problems 114966

RHEL 8 Podman Image Pull Fails Due To Registry TLS Trust

🟡 Medium   ⏱ 5–30 min  Last verified: 14 June 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 & Cross-Refs References & Further […]

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Gentoo Linux — dev-php/pecl-imagick — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-php/pecl-imagick — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202003-38 Related CVEs: CVE-2019-11037 Upstream summary: An out-of-bounds write vulnerability was discovered in the Imagick PHP extension. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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How to Configure the Protected Users Security Group on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure the Protected Users Security Group on Windows Server 2012 R2

How to Configure the Protected Users Security Group on Windows Server 2012 R2 The Protected Users security group is a new security principal introduced in Windows Server 2012 R2 that provides automatic, non-configurable credential protections for its members. Unlike standard security groups, membership in Protected Users triggers behavioral changes in both the client (Windows 8.1+) […]

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Java IO Tutorial — step-by-step Programming tutorial on Progressive Robot

Java IO Tutorial

URL: https://www.progressiverobot.com/java-io-tutorial/ Java provides several classes in java.io package to work with text, stream data, and file system. I have provided several examples on Java Files and Java IO recently. This post is an index of all Java IO articles. Java IO ![Java IO](images/java-io-tutorial-section-1.png) [How to Create New File in Java](/community/tutorials/java-create-new-file) In this post, you […]

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