Logging Monitoring

Debian 12 — openjdk-17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — openjdk-17 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-2163 CVE-2021-35556 CVE-2021-35559 CVE-2021-35561 CVE-2021-35564 CVE-2021-35567 CVE-2021-35578 CVE-2021-35586  +12 more Upstream summary: Vulnerability in the Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition product of Oracle Java […]

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openSUSE Leap 15.5 — apptainer — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — apptainer — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:0244-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-30549 CVE-2023-38496 Upstream summary: Apptainer is an open source container platform for Linux. There is an ext4 use-after-free flaw that is exploitable through versions […]

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How to Configure SSL Client Certificate Authentication on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure SSL Client Certificate Authentication on Debian 12

Introduction How to Configure SSL Client Certificate Authentication on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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How to Install Apache on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Install Apache on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying install apache on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Apache on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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NetBSD 9.4 — xmlrpc-c-ss — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — xmlrpc-c-ss — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2009-3560 CVE-2009-3720 Upstream summary: pkgsrc audit-packages flagged xmlrpc-c-ss<1.06.38 for vulnerability class 'denial-of-service'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3560 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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How to Set Up FTP Server with vsftpd on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up FTP Server with vsftpd on FreeBSD 14

Introduction This guide explains how to Set Up FTP Server with vsftpd on FreeBSD 14 on FreeBSD 14. 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 […]

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NetBSD 9.4 — ircservices — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ircservices — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged ircservices<5.0.63 for vulnerability class 'denial-of-service'. Reference: http://lists.ircservices.za.net/pipermail/ircservices/2007/005558.html Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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How to Install and Configure BIND9 DNS Server on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install and Configure BIND9 DNS Server on FreeBSD 14

Introduction Deploying install and configure bind9 dns server on freebsd 14 on a FreeBSD 14 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within […]

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NetBSD 9.4 — ruby-actionview52 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ruby-actionview52 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2020-8167 Upstream summary: pkgsrc audit-packages flagged ruby{22,24,25,26,27}-actionview52<5.2.4.3 for vulnerability class 'cross-site-request-forgery'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-8167 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Configure ifconfig Networking on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure ifconfig Networking on FreeBSD 14

Introduction How to Configure ifconfig Networking on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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