Linux

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Ubuntu 18.04 Hostname Mismatch Breaks sudo and Mail Alerts

🟡 Medium   ⏱ 5–30 min  Last verified: 23 October 2019 📖 ~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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openSUSE Tumbleweed — telepathy-idle — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — telepathy-idle — vulnerability — 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-2013:1364-1 (see also SUSE bugzilla) Related CVEs: CVE-2007-6746 Upstream summary: telepathy-idle before 0.1.15 does not verify (1) that the issuer is a trusted CA, (2) that the server hostname matches a domain […]

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Alpine Linux edge — taglib — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — taglib — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.11.1-r2 📖 ~4 min read  •  Source: Alpine secdb entry — taglib 1.11.1-r2 Related CVEs: CVE-2017-12678 CVE-2018-11439 Upstream summary: Alpine community repository for vedge ships taglib 1.11.1-r2 which addresses CVE-2017-12678. Table of contents Symptom & Impact […]

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How to Set Up a Git Server with Gitea on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a Git Server with Gitea on RHEL 8

Gitea is a lightweight, self-hosted Git service written in Go that provides a GitHub-like web interface with a tiny resource footprint — ideal for teams that want a simple hosted Git server without the overhead of a full GitLab installation. On RHEL 8, Gitea can be set up in under an hour using a single […]

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A Linux Command Line Primer — step-by-step Linux tutorial on Progressive Robot

A Linux Command Line Primer

This tutorial will provide users who are new to terminal environments with the basics of using a command-line interface, providing a primer for understanding how to use Linux cloud servers.

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openSUSE Tumbleweed — ruby2.7-rubygem-minitar — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby2.7-rubygem-minitar — vulnerability — 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-2021:0115-1 (see also SUSE bugzilla) Related CVEs: CVE-2016-10173 Upstream summary: Directory traversal vulnerability in the minitar before 0.6 and archive-tar-minitar 0.5.2 gems for Ruby allows remote attackers to write to arbitrary files […]

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openSUSE Tumbleweed — monitoring-plugins — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — monitoring-plugins — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2019:1702-1 (see also SUSE bugzilla) Related CVEs: CVE-2007-5623 Upstream summary: Buffer overflow in the check_snmp function in Nagios Plugins (nagios-plugins) 1.4.10 allows remote attackers to cause a denial of service (crash) via […]

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How to Set Up Automatic Security Updates on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Automatic Security Updates on Debian 9

Introduction Deploying set up automatic security updates on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You […]

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