Linux

Common Problems 117919

Ubuntu 18.04 LTS Netplan Misconfiguration Causes No Network

🟠 High   ⏱ 5–30 min  Last verified: 10 September 2019 Affected versions: 18.04 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 & […]

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openSUSE Tumbleweed — stb-devel — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — stb-devel — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:0039-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-13217 CVE-2019-13220 CVE-2019-13221 CVE-2019-13222 CVE-2019-13218 CVE-2019-13219 CVE-2019-13223 Upstream summary: A heap buffer overflow in the start_decoder function in stb_vorbis through 2019-03-04 allows an attacker to […]

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How to Set Up a LEMP Stack on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a LEMP Stack on RHEL 7

How to Set Up a LEMP Stack on RHEL 7 A LEMP stack — Linux, Nginx, MySQL, and PHP — is one of the most common foundations for modern dynamic web applications. On RHEL 7 the individual components are available from a combination of the base repositories, the EPEL community repository, the official MySQL community […]

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SLES 15 — unixODBC — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — unixODBC — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 September 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2011-1145 Upstream summary: The SQLDriverConnect() function in unixODBC before 2.2.14p2 have a possible buffer overflow condition when specifying a large value for SAVEFILE parameter in […]

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Как установить веб-сервер Apache в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Как установить веб-сервер Apache в Ubuntu 18.04

HTTP сервер Apache является самым широко используемым веб-сервером в мире. Он предоставляет множество удобных функций включая динамически загружаемые модули, широкую поддержку мультимедиа, и интеграцию с другим популярным программным обеспечением. В этом руководстве мы…

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

Oracle Linux 8 — libtirpc — vulnerability — patch and remediation guide (ELSA-2021-9449)

🟠 High   ⏱ 15–60 min  Last verified: 10 September 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9449 Related CVEs: CVE-2018-14621 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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Common Problems 118990

Ubuntu 14.04 LTS NTP Drift Causes Kerberos and SSL Failures

🟠 High   ⏱ 5–30 min  Last verified: 9 September 2019 Affected versions: 14.04 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 & […]

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How to Install Icinga2 on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Icinga2 on Debian 9

Introduction This guide explains how to Install Icinga2 on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the standard repositories […]

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Sysadmin eBook: Faire fonctionner les serveurs — step-by-step Linux tutorial on Progressive Robot

Sysadmin eBook: Faire fonctionner les serveurs

<$>[note] [label Télécharger le eBook complet] Faire fonctionner les serveurs : Un guide pratique de l’administration des systèmes un eBook au format EPUB [*Faire fonctionner les serveurs : un Guide pratique pour l’administration du système *un…

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Alpine Linux edge — nodejs — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — nodejs — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 8.9.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — nodejs 8.9.3-r0 Related CVEs: CVE-2017-15896 CVE-2017-15897 CVE-2018-12115 CVE-2018-7167 CVE-2018-7161 CVE-2018-1000168 CVE-2018-7158 CVE-2018-7159  +12 more Upstream summary: Alpine main repository for vedge ships nodejs 8.9.3-r0 which […]

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