Operations

How to Install Cockpit Web Console on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Cockpit Web Console on Debian 9

Introduction Deploying install cockpit web console 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 Ensure Debian […]

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Oracle Linux 8 — gdb security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — gdb security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-3352)

🟢 Low   ⏱ 5–15 min  Last verified: 13 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3352 Related CVEs: CVE-2018-20657 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 118923

Ubuntu 14.04 LTS apt-get update hash sum mismatch

🟡 Medium   ⏱ 5–30 min  Last verified: 13 September 2021 📖 ~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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Common Problems 118613

cron Jobs Not Running on Ubuntu 16.04

🟡 Medium   ⏱ 5–30 min  Last verified: 13 September 2021 📖 ~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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Common Problems 117595

Ubuntu 20.04 LTS Kernel Panic After Installing NVIDIA Driver

🟡 Medium   ⏱ 5–30 min  Last verified: 13 September 2021 📖 ~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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AlmaLinux 8 — spamassassin — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — spamassassin — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:4315 Related CVEs: CVE-2020-1946 Upstream summary: The SpamAssassin tool provides a way to reduce unsolicited commercial email (spam) from incoming email. Security Fix(es): * spamassassin: Malicious rule configuration files can be configured […]

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How to Set Up Swap Space on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Swap Space on SLES 12

Introduction This tutorial covers How to Set Up Swap Space on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper […]

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Common Problems 112552

Windows Server 2019 – Security event log overflow causing dropped audit events – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 13 September 2021 Affected versions: Windows Server 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 […]

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Debian 11 — xastir — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xastir — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4987 Upstream summary: xastir 1.9.2 allows local users to overwrite arbitrary files via a symlink attack on the (a) /tmp/ldconfig.tmp, (b) /tmp/ldconf.tmp, and (c) /tmp/ld.so.conf temporary files, related […]

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Debian 11 — lrzip — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

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

🟠 High   ⏱ 15–60 min  Last verified: 13 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-8842 CVE-2017-8843 CVE-2017-8844 CVE-2017-8845 CVE-2017-8846 CVE-2017-8847 CVE-2017-9928 CVE-2017-9929  +12 more Upstream summary: The bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631 allows remote attackers to cause a […]

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