December 2021 - Page 59 of 71

Common Problems 121180

Firewall Rules Block Application Traffic

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 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 114100

RHEL 10 – fapolicyd blocks in-house binaries after policy reload – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Configure Chef Client on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Chef Client 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 configure chef client on ibm aix 7.1 on IBM […]

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FreeBSD 13 — py311-kerberos — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py311-kerberos — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-kerberos — DoS and MitM vulnerabilities Related CVEs: CVE-2015-3206 Upstream summary: macosforgebot reports: The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows […]

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How to Set Up Galera Cluster for MariaDB on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Galera Cluster for MariaDB on SLES 12

Introduction This tutorial covers How to Set Up Galera Cluster for MariaDB 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 […]

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FreeBSD 13 — zsh — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — zsh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: zsh — Arbitrary command execution vulnerability Related CVEs: CVE-2021-45444 Upstream summary: Marc Cornellà reports: Some prompt expansion sequences, such as %F, support 'arguments' which are themselves expanded in case they […]

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JSTL Tutorial, JSTL Tags Example — step-by-step Programming tutorial on Progressive Robot

JSTL Tutorial, JSTL Tags Example

URL: https://www.progressiverobot.com/jstl-tutorial-jstl-tags-example/ JSTL stands for JSP Standard Tag Library. JSTL is the standard tag library that provides tags to control the JSP page behavior. JSTL tags can be used for iteration and control statements, internationalization, SQL etc. We will look into JSTL Tags in detail in this JSTL tutorial. Earlier we saw how we can […]

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FreeBSD 13 — davmail — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — davmail — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: davmail — fix potential CVE-2014-3566 vulnerability (POODLE) Related CVEs: CVE-2014-3566 Upstream summary: Mickaël Guessant reports: DavMail 4.6.0 released Enhancements: Fix potential CVE-2014-3566 vulnerability. Table of contents Symptom & Impact Environment […]

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