Linux

Common Problems 121102

Debian 10 – time synchronization fails causing TLS and auth errors

🟠 High   ⏱ 5–30 min  Last verified: 23 February 2020 Affected versions: Debian 10 📖 ~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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Common Problems 118076

Ubuntu 18.04 LTS – Docker daemon fails after kernel update with cgroup issues – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 February 2020 Affected versions: Ubuntu 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 — libofx — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2018:2045-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-14731 CVE-2017-2816 Upstream summary: ofx_proc_file in ofx_preproc.cpp in LibOFX 0.9.12 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) […]

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How to Install Helm Package Manager for Kubernetes on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Helm Package Manager for Kubernetes on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up install helm package manager for kubernetes on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step […]

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How to Use Makefile for Build Automation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Use Makefile for Build Automation on RHEL 7

How to Use Makefile for Build Automation on RHEL 7 The Makefile has been a cornerstone of software build automation since the 1970s, and it remains one of the most versatile and universally available tools on any Linux system. On RHEL 7, GNU Make is installed by default as part of the base system or […]

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Common Problems 119113

Ubuntu 14.04 LTS locale warnings in shell and scripts

🟡 Medium   ⏱ 5–30 min  Last verified: 22 February 2020 📖 ~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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How to Install Icinga2 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install Icinga2 on Debian 10

Introduction This guide explains how to Install Icinga2 on Debian 10 on Debian 10 Buster. Debian Buster 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 10 install with the standard repositories […]

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Amazon Linux 2 — autotrace — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — autotrace — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-1929 Related CVEs: CVE-2016-7392 CVE-2017-9182 CVE-2019-19004 CVE-2019-19005 Upstream summary: Heap-based buffer overflow in the pstoedit_suffix_table_init function in output-pstoedit.c in AutoTrace 0.31.1 allows remote attackers to cause a denial of service […]

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How to Configure Automatic Security Updates on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Automatic Security Updates on RHEL 7

How to Configure Automatic Security Updates on RHEL 7 Keeping a RHEL 7 server patched against known vulnerabilities is one of the most impactful things you can do to improve its security posture. While manual patching is reliable, it requires discipline and can be delayed during busy operational periods. Automating security updates ensures that critical […]

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