chris

FreeBSD 12 — p5-subversion — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — p5-subversion — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: subversion — heap overflow vulnerability Related CVEs: CVE-2009-2411 Upstream summary: A Subversion Security Advisory reports: Subversion clients and servers have multiple heap overflow issues in the parsing of binary deltas. […]

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

openSUSE Tumbleweed — pcmanfm — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:10001-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-8934 Upstream summary: PCManFM 1.2.5 insecurely uses /tmp for a socket file, allowing a local user to cause a denial of service (application unavailability). Table […]

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Hibernate Tutorial — step-by-step DevOps tutorial on Progressive Robot

Hibernate Tutorial

Recently I have written a lot of hibernate tutorial. Hibernate is one of the best Java ORM tool in the current market. So this post is like an index of all the posts for hibernate tutorials and examples. You can go through these hibernate tutorials in sequence to learn hibernate from scratch. Most probably I […]

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DAO Design Pattern — step-by-step Programming tutorial on Progressive Robot

DAO Design Pattern

DAO stands for Data Access Object. DAO [Design Pattern](/community/tutorials/java-design-patterns-example-tutorial) is used to separate the data persistence logic in a separate layer. This way, the service remains completely in dark about how the low-level operations to access the database is done. This is known as the principle of Separation of Logic. DAO Design Pattern With DAO […]

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Common Problems 118982

Ubuntu 14.04 LTS disk fills rapidly due to runaway log growth

🟠 High   ⏱ 5–30 min  Last verified: 19 June 2019 Affected versions: 14.04 📖 ~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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Common Problems 118107

Ubuntu 18.04 LTS – failed fstab mount entry blocks startup target – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 June 2019 Affected versions: Ubuntu 18.04 LTS 📖 ~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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FreeBSD 12 — xfs — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — xfs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 June 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xfs — multiple vulnerabilities Related CVEs: CVE-2007-4568 Upstream summary: Matthieu Herrb reports: Problem Description: Several vulnerabilities have been identified in xfs, the X font server. The QueryXBitmaps and QueryXExtents protocol […]

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How to Configure Nginx with PageSpeed Module on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure Nginx with PageSpeed Module on SLES 12

Introduction This tutorial covers How to Configure Nginx with PageSpeed Module on SLES 12 on SLES 12. SLES 12 (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 12 system is up to date: […]

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How to Use instfix to Check Installed Fixes on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use instfix to Check Installed Fixes on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use instfix to check installed fixes on ibm aix […]

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