Linux

How to Install PHP 8.2 CLI on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install PHP 8.2 CLI on Debian 12

Introduction How to Install PHP 8.2 CLI 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 12. […]

Read more
Alpine Linux 3.18 — clamav — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — clamav — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.1.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — clamav 1.1.2-r0 Related CVEs: CVE-2022-48579 CVE-2023-20032 CVE-2023-20052 CVE-2012-6706 CVE-2017-6419 CVE-2017-11423 CVE-2018-0202 CVE-2018-1000085  +12 more Upstream summary: Alpine community repository for vv3.18 ships clamav 1.1.2-r0 which […]

Read more
Oracle Linux 9 — java-17-openjdk — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — java-17-openjdk — security and stability fixes — required update (ELSA-2023-0194)

🟡 Medium   ⏱ 10–30 min  Last verified: 13 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0194 Related CVEs: CVE-2023-21835 CVE-2023-21843 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

Read more
Alpine Linux edge — podman-tui — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — podman-tui — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.15.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — podman-tui 0.15.0-r0 Related CVEs: CVE-2023-48795 Upstream summary: Alpine community repository for vedge ships podman-tui 0.15.0-r0 which addresses CVE-2023-48795. Table of contents Symptom & Impact Environment […]

Read more
Common Problems 120124

Debian 12 NTP Sync Not Active and Clock Drift Increases

🟡 Medium   ⏱ 5–30 min  Last verified: 13 November 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 & […]

Read more
How to Set Up Varnish Cache on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Varnish Cache on CentOS Stream 9

Introduction Setting up set up varnish cache on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Varnish Cache on CentOS Stream 9, with all the commands you need, the SELinux and firewalld considerations to […]

Read more
Alpine Linux edge — libcue — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libcue — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.2.1-r2 📖 ~4 min read  •  Source: Alpine secdb entry — libcue 2.2.1-r2 Related CVEs: CVE-2023-43641 Upstream summary: Alpine community repository for vedge ships libcue 2.2.1-r2 which addresses CVE-2023-43641. Table of contents Symptom & Impact Environment […]

Read more
Common Problems 117001

Ubuntu 22.04 LTS – /boot full prevents kernel updates – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 November 2023 Affected versions: Ubuntu 22.04 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 […]

Read more
Common Problems 115075

RHEL 8 Multipath Device Flapping in SAN Environment

🟡 Medium   ⏱ 5–30 min  Last verified: 13 November 2023 📖 ~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 […]

Read more
Debian 12 — arb — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — arb — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4941 CVE-2008-5378 Upstream summary: arb-common 0.0.20071207.1 allows local users to overwrite arbitrary files via a symlink attack on (a) /tmp/arb_fdnaml_*, (b) /tmp/arb_pids_*, (c) /tmp/arbdsmz.html, and (d) /tmp/arbdsmz.htm temporary […]

Read more
CHAT