Troubleshooting

How to Configure Scheduled Task-Based Backup Scripts on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Scheduled Task-Based Backup Scripts on Windows Server 2019

Introduction to Scheduled Task-Based Backup Scripts on Windows Server 2019 While enterprise backup solutions like Veeam or Azure Backup provide comprehensive protection, many organizations also use custom PowerShell and batch scripts for targeted, supplemental backups — backing up specific application data, configuration files, database exports, or IIS content on a schedule. Windows Task Scheduler is […]

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SLES 15 — tidy — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — tidy — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 November 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2015:1513-1 (see also SUSE bugzilla) Related CVEs: CVE-2015-5522 CVE-2015-5523 CVE-2016-6583 Upstream summary: Heap-based buffer overflow in the ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial […]

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Gentoo Linux — app-text/hunspell — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-text/hunspell — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202409-21 Upstream summary: Malicious input to the hunspell spell checker could result in an application crash or other unspecified behavior. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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SLES 12 — cron — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — cron — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 November 2019 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SA:2006:027 (see also SUSE bugzilla) Related CVEs: CVE-2006-2607 CVE-2010-0424 CVE-2019-9704 CVE-2019-9705 Upstream summary: do_command.c in Vixie cron (vixie-cron) 4.1 does not check the return code of a setuid call, which might allow […]

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How to Install Apache Kafka on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Apache Kafka on RHEL 7

How to Install Apache Kafka on RHEL 7 Apache Kafka is a distributed event streaming platform designed for high-throughput, fault-tolerant, real-time data pipelines. Originally developed at LinkedIn and later open-sourced under the Apache Software Foundation, Kafka is used by thousands of companies to process trillions of events per day. Unlike traditional message queues, Kafka persists […]

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Common Problems 118123

Ubuntu 18.04 filesystem mounted read-only after errors

🟡 Medium   ⏱ 5–30 min  Last verified: 28 November 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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Common Problems 117958

Ubuntu 18.04 LTS – SSH key authentication fails after hardening changes – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 November 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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Common Problems 115562

subscription-manager shows no enabled repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 28 November 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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FreeBSD 12 — xshisen — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — xshisen — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xshisen — local buffer overflows Related CVEs: CVE-2003-1053 CVE-2005-0117 Upstream summary: Steve Kemp has found buffer overflows in the handling of the command line flag -KCONV and the XSHISENLIB environment […]

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FreeBSD 12 — pl-ekg — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — pl-ekg — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 November 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libgadu — multiple vulnerabilities Related CVEs: CVE-2005-1850 CVE-2005-1851 CVE-2005-1852 CVE-2005-1916 CVE-2005-2369 CVE-2005-2370 CVE-2005-2448 Upstream summary: Wojtek Kaniewski reports: Multiple vulnerabilities have been found in libgadu, a library for handling Gadu-Gadu […]

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