Package Management

How to Configure AlertManager on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure AlertManager on SLES 12

Introduction This tutorial covers How to Configure AlertManager 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 refresh && […]

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FreeBSD 12 — ganglia-monitor-webfrontend — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ganglia-monitor-webfrontend — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ganglia — buffer overflow vulnerability Related CVEs: CVE-2009-0241 Upstream summary: Secunia reports: Spike Spiegel has discovered a vulnerability in Ganglia which can be exploited by malicious people to compromise a […]

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Common Problems 115048

RHEL 8 High IOWait Caused by Unbounded Persistent Journald Logs

🟡 Medium   ⏱ 5–30 min  Last verified: 5 September 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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FreeBSD 12 — openldap-sasl-server — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — openldap-sasl-server — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: openldap — slapd acl selfwrite Security Issue Related CVEs: CVE-2006-4600 Upstream summary: Howard Chu reports: An ACL of the form 'access to dn.subtree="ou=groups, dc=example,dc=com" attr=member by * selfwrite' is intended […]

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Amazon Linux 2 — libcgroup — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libcgroup — vulnerability — 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 ALAS2-2019-1336 Related CVEs: CVE-2018-14348 Upstream summary: libcgroup up to and including 0.41 creates /var/log/cgred with mode 0666 regardless of the configured umask, leading to disclosure of information.(CVE-2018-14348) Table of contents […]

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How to Configure Kubernetes RBAC on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure Kubernetes RBAC on SLES 12

Introduction This tutorial covers How to Configure Kubernetes RBAC 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. Step 1 — Disable Swap swapoff -a sed -i ‘/ swap / […]

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FreeBSD 12 — linux-c7-icu — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-c7-icu — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: icu — multiple vulnerabilities Related CVEs: CVE-2017-7867 CVE-2017-7868 Upstream summary: NVD reports: International Components for Unicode (ICU) for C/C++ before 2017-02-13 has an out-of-bounds write caused by a heap-based buffer […]

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How to Enable HTTP/2 in Nginx on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Enable HTTP/2 in Nginx on SLES 15

Introduction This tutorial covers How to Enable HTTP/2 in Nginx on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: zypper […]

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Ubuntu 18.04 — ruby-nokogiri — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — ruby-nokogiri — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 September 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4175-1 Related CVEs: CVE-2019-5477 Upstream summary: It was discovered that Nokogiri incorrectly handled inputs. A remote attacker could possibly use this issue to execute arbitrary OS commands. Table of contents […]

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How to Install Rust with rustup on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Rust with rustup on Debian 9

Introduction This guide explains how to Install Rust with rustup 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 […]

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