Operations

How to Secure MySQL on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Secure MySQL on RHEL 7

How to Secure MySQL on RHEL 7 A default MySQL installation leaves several security gaps that can expose your databases to unauthorized access, data theft, or privilege escalation. On Red Hat Enterprise Linux 7, taking deliberate steps to harden MySQL immediately after installation is essential for any production or internet-facing system. This guide walks through […]

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Arch Linux — libgit2 — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — libgit2 — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201912-5 Related CVEs: CVE-2019-1387 CVE-2019-1352 CVE-2019-1349 CVE-2019-1348 CVE-2016-10130 CVE-2016-10129 CVE-2016-10128 CVE-2016-8569  +1 more Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1:0.28.3-1. Fixed in: 1:0.28.4-1. Group: AVG-1075. Table of […]

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Common Problems 119021

Ubuntu 14.04 LTS MySQL service fails to start after unclean shutdown

🟠 High   ⏱ 5–30 min  Last verified: 30 December 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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How to Configure Bonding Network Interfaces on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Bonding Network Interfaces on Debian 9

Introduction Deploying configure bonding network interfaces on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian […]

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FreeBSD 12 — php70-imap — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php70-imap — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php-imap — imap_open allows to run arbitrary shell commands via mailbox parameter Upstream summary: The PHP team reports: imap_open allows to run arbitrary shell commands via mailbox parameter. Table of […]

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How to Configure Ceph Storage Cluster on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Ceph Storage Cluster on Debian 9

Introduction How to Configure Ceph Storage Cluster on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 9. […]

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FreeBSD 12 — neovim — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — neovim — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Vim/NeoVim — Security vulnerability Related CVEs: CVE-2016-1248 Upstream summary: Security releases for Vim/NeoVim: Sandbox escape allows for arbitrary code execution. Table of contents Symptom & Impact Environment & Reproduction Root […]

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SLES 15 — clamsap — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — clamsap — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2016:0805-1 (see also SUSE bugzilla) Related CVEs: CVE-2015-2278 CVE-2015-2282 Upstream summary: The LZH decompression implementation (CsObjectInt::BuildHufTree function in vpa108csulzh.cpp) in SAP MaxDB 7.5 and 7.6, Netweaver Application Server ABAP, Netweaver Application Server […]

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Gentoo Linux — net-analyzer/sarg — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-analyzer/sarg — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202007-32 Related CVEs: CVE-2019-18932 Upstream summary: A flaw in Sarg’s handling of temporary directories was discovered. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 119071

Ubuntu 14.04 LTS dpkg interrupted state blocks package installs

🟡 Medium   ⏱ 5–30 min  Last verified: 29 December 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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