Logging Monitoring

Debian 11 — filter — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — filter — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1272 Upstream summary: Buffer overflow in the save_embedded_address function in filter.c for elm/bolthole filter 2.6.1 allows remote attackers to execute arbitrary code via a crafted email message. Table […]

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Debian 11 — xsok — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xsok — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0949 Upstream summary: xsok 1.02 does not properly drop privileges before finding and executing the "gunzip" program, which allows local users to execute arbitrary commands. Table of contents […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9689)

🟠 High   ⏱ 15–60 min  Last verified: 27 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9689 Related CVEs: CVE-2022-2588 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Install PostgreSQL 16 on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install PostgreSQL 16 on FreeBSD 12

Introduction How to Install PostgreSQL 16 on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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Oracle Linux 9 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide (ELSA-2022-6700)

🟠 High   ⏱ 15–60 min  Last verified: 27 December 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6700 Related CVEs: CVE-2022-40958 CVE-2022-40957 CVE-2022-40962 CVE-2022-40959 CVE-2022-40960 CVE-2022-40956 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Set Up DNS Policies on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up DNS Policies on Windows Server 2022

How to Back Up and Restore SQL Server Databases on Windows Server 2022 Reliable database backups are the foundation of any SQL Server disaster recovery strategy. SQL Server 2022 provides flexible backup types, recovery models, compression, encryption, and cloud-integrated backup to Azure Blob Storage. This guide covers everything from the basic BACKUP DATABASE command to […]

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Common Problems 115098

RHEL 8 MariaDB Service Fails After Parameter Mismatch Change

🟡 Medium   ⏱ 5–30 min  Last verified: 26 December 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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Common Problems 114577

DNF Metadata Checksum Mismatch Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 26 December 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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IBM AIX 7.2 — CVE-2022-22473 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-22473 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 26 December 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-22473, IBM Support Bulletin CVE: CVE-2022-22473 NVD summary: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to obtain sensitive information caused by improper handling of Administrative […]

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