chris

How to Configure MariaDB Galera Cluster on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure MariaDB Galera Cluster on FreeBSD 12

Introduction This guide explains how to Configure MariaDB Galera Cluster on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

Read more
FreeBSD 12 — ruby25-gems — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ruby25-gems — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 7 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: RubyGems — multiple vulnerabilities Related CVEs: CVE-2019-8320 CVE-2019-8321 CVE-2019-8322 CVE-2019-8323 CVE-2019-8324 CVE-2019-8325 Upstream summary: RubyGems Security Advisories: CVE-2019-8320: Delete directory using symlink when decompressing tar CVE-2019-8321: Escape sequence injection vulnerability […]

Read more
How to Configure Active Directory Auditing on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Active Directory Auditing on Windows Server 2012 R2

How to Configure Active Directory Auditing on Windows Server 2012 R2 Active Directory auditing provides visibility into who is making changes to directory objects, when those changes occur, and what the values were before and after the change. Comprehensive AD auditing is essential for security compliance, forensic investigation, and change management. Windows Server 2012 R2 […]

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

openSUSE Tumbleweed — zypper — 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 openSUSE-SU-2017:2111-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-7436 CVE-2017-9269 Upstream summary: In libzypp before 20170803 it was possible to retrieve unsigned packages without a warning to the user which could lead to […]

Read more
FreeBSD 12 — qutebrowser — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — qutebrowser — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: qutebrowser — Reloading page with certificate errors shows a green URL Related CVEs: CVE-2018-10895 CVE-2020-11054 Upstream summary: Qutebrowser developers report: After a certificate error was overridden by the user, qutebrowser […]

Read more
How to Configure Collectd on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Collectd on Debian 10

Introduction This guide explains how to Configure Collectd 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 […]

Read more
The Docker Ecosystem: Scheduling and Orchestration — step-by-step Docker tutorial on Progressive Robot

The Docker Ecosystem: Scheduling and Orchestration

Many Docker users are leveraging the platform as a tool for easily scaling large numbers of containers across many different hosts. Clustered Docker hosts present special management challenges that require a different set of tools. In this guide, we will discuss Docker schedulers and orchestration tools which represent the primary container management interfaces for administrators of distributed deployments.

Read more
FreeBSD 12 — ruby19-gems — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ruby19-gems — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 February 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ruby-gems — Algorithmic Complexity Vulnerability Related CVEs: CVE-2013-4287 CVE-2013-4363 Upstream summary: Ruby Gem developers report: The patch for CVE-2013-4363 was insufficiently verified so the combined regular expression for verifying gem […]

Read more
openSUSE Tumbleweed — fvwm2 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — fvwm2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2006-5969 Upstream summary: CRLF injection vulnerability in the evalFolderLine function in fvwm 2.5.18 and earlier allows local users to execute arbitrary commands via carriage returns […]

Read more
CHAT