Linux

AlmaLinux 9 — butane — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — butane — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:2193 Related CVEs: CVE-2022-27664 CVE-2022-32189 Upstream summary: Butane translates human-readable Butane Configs into machine-readable Ignition configs for provisioning operating systems that use Ignition. The following packages have been upgraded to a later […]

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How To Use LVM To Manage Storage Devices on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Use LVM To Manage Storage Devices on Ubuntu 16.04

LVM, or Logical Volume Management, is a storage device management technology that gives users the power to pool and abstract the physical layout of component storage devices for easier and flexible administration. Utilizing the device mapper Linux kernel framework, the…

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Common Problems 114453

RHEL 9 Chrony time drift and NTP sync issues

🟡 Medium   ⏱ 5–30 min  Last verified: 20 November 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 — keystone — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — keystone — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-1572 CVE-2012-3426 CVE-2012-3542 CVE-2012-4413 CVE-2012-4456 CVE-2012-4457 CVE-2012-5571 CVE-2013-0247  +12 more Upstream summary: OpenStack Keystone: extremely long passwords can crash Keystone by exhausting stack space Table of contents Symptom […]

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openSUSE Tumbleweed — libdwarf0 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libdwarf0 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2022-34299 CVE-2022-32200 Upstream summary: There is a heap-based buffer over-read in libdwarf 0.4.0. This issue is related to dwarf_global_formref_b. Table of contents Symptom & Impact […]

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Oracle Linux 9 — apr — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — apr — vulnerability — patch and remediation guide (ELSA-2023-7711)

🟡 Medium   ⏱ 10–30 min  Last verified: 20 November 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7711 Related CVEs: CVE-2022-24963 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 R on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Install R on Ubuntu 22.04

R is a widely used programming language for performing data analysis and statistical computing. It is an increasingly popular and extensible language with an active community. R offers many user-generated packages for specific areas of study, which makes it applicable to many fields.

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How To Install and Configure scponly on CentOS 7 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure scponly on CentOS 7

scponly is a secure alternative to anonymous FTP. It gives the administrator the ability to setup a secure user account with restricted remote file access and without access to an interactive shell. With scponly you are giving the user remote access to download and upload specific files. They will not have an interactive shell, meaning they can’t execute commands. The user can only access the server via scp, sftp, or clients that support these protocols.

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Common Problems 119074

Ubuntu 14.04 LTS CIFS Mount Fails at Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 19 November 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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