Linux

Oracle Linux 8 — virt:ol and virt-devel:ol — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol and virt-devel:ol — vulnerability — patch and remediation guide (ELSA-2022-0886)

🟢 Low   ⏱ 5–15 min  Last verified: 20 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0886 Related CVEs: CVE-2022-0358 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 ionCube on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Install ionCube on Ubuntu 16.04

ionCube is a PHP module extension that loads encrypted PHP files and speeds up webpages. It is often required for PHP-based applications. In this tutorial, we will install ionCube on a Ubuntu 16.04 server.

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How To Add the gzip Module to Nginx on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Add the gzip Module to Nginx on Ubuntu 16.04

How fast a website will load depends on the size of all of the files that have to be downloaded by the browser. Reducing the size of files to be transmitted can make the website not only load faster, but also cheaper to those who have to pay for their bandwidth usage. In this guide, we’ll discuss how to configure Nginx installed on your Ubuntu 16.04 server to utilize `gzip` compression to reduce the size of content sent to website visitors.

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openSUSE Tumbleweed — keylime-agent — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — keylime-agent — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:2658-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-1053 CVE-2021-43310 CVE-2022-31250 CVE-2022-23948 CVE-2022-23949 CVE-2022-23950 CVE-2022-23952 CVE-2022-23951 Upstream summary: Keylime does not enforce that the agent registrar data is the same when the tenant […]

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

How to Install PostgreSQL on RHEL 7

How to Install PostgreSQL on RHEL 7 PostgreSQL is a powerful, open-source object-relational database system with over 30 years of active development. It is widely regarded as the most standards-compliant open-source SQL database, offering advanced features such as full ACID compliance, support for JSON and JSONB data types, table inheritance, robust indexing mechanisms, and a […]

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Common Problems 117066

Ubuntu 22.04 Time Drift from Conflicting NTP Services

🟡 Medium   ⏱ 5–30 min  Last verified: 19 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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Debian 11 — wml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — wml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-0665 CVE-2008-0666 Upstream summary: wml_backend/p1_ipp/ipp.src in Website META Language (WML) 2.0.11 allows local users to overwrite arbitrary files via a symlink attack on the ipp.$$.tmp temporary file. Table […]

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Debian 11 — libass — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libass — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7969 CVE-2016-7970 CVE-2016-7972 CVE-2020-24994 CVE-2020-26682 CVE-2020-36430 Upstream summary: The wrap_lines_smart function in ass_render.c in libass before 0.13.4 allows remote attackers to cause a denial of service (out-of-bounds read) […]

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Common Problems 115088

RHEL 8 PHP-FPM Fails With Permission Denied Under SELinux

🟡 Medium   ⏱ 5–30 min  Last verified: 19 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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