Backup Recovery

Oracle Linux 8 — rsync — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — rsync — vulnerability — patch and remediation guide (ELSA-2022-6180)

🟠 High   ⏱ 15–60 min  Last verified: 6 July 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6180 Related CVEs: CVE-2022-29154 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 Set Up a LAMP Stack on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up a LAMP Stack on Oracle Linux 9

Introduction How to Set Up a LAMP Stack on Oracle Linux 9 on Oracle Linux 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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How to Create Python Virtual Environments on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Create Python Virtual Environments on Debian 12

Introduction This guide explains how to Create Python Virtual Environments on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with the […]

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How to Enable Brotli Compression on Nginx on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Enable Brotli Compression on Nginx on Debian 12

Introduction How to Enable Brotli Compression on Nginx on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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Common Problems 119976

Debian 12 Unmet Dependencies After Partial Upgrade

🟠 High   ⏱ 5–30 min  Last verified: 5 July 2023 Affected versions: Debian 12 📖 ~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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How to Set Up Checkmk on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Checkmk on Oracle Linux 9

Introduction How to Set Up Checkmk on Oracle Linux 9 on Oracle Linux 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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How to Install and Configure Squid Proxy on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install and Configure Squid Proxy on Debian 12

Introduction This guide explains how to Install and Configure Squid Proxy on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with […]

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How to Configure iSCSI Target and Initiator on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure iSCSI Target and Initiator on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up configure iscsi target and initiator on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully […]

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Common Problems 120075

Debian 12 Sudo Access Broken by Policy Misconfiguration

🟠 High   ⏱ 5–30 min  Last verified: 3 July 2023 Affected versions: Debian 12 📖 ~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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openSUSE Tumbleweed — borgbackup — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — borgbackup — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2023-36811 CVE-2016-10099 CVE-2016-10100 CVE-2017-15914 Upstream summary: borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption. A flaw in the cryptographic authentication scheme in […]

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