Развертывание и управление DNS с использованием DNSControl в Debian 10
Автор выбрал Electronic Frontier Foundation Inc для получения пожертвований в рамках программы Write for DOnations.
How to Configure MariaDB Galera Cluster on RHEL 8
MariaDB Galera Cluster is a synchronous multi-primary replication solution that allows writes to be accepted by any node in the cluster simultaneously. Unlike standard MySQL asynchronous replication, Galera ensures that a transaction is committed on all nodes before it is acknowledged to the application, eliminating replication lag and the risk of data loss during failover. […]
Debian 10: unattended-upgrades stuck and blocking apt
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Debian 10 📖 ~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 & […]
openSUSE Tumbleweed — yast2-security — 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-2019-3700 Upstream summary: yast2-security didn't use secure defaults to protect passwords. This became a problem on 2019-10-07 when configuration files that set secure settings were […]
Windows Server 2012 R2 — IPsec site-to-site tunnel renegotiation fails after certificate renewal on RRAS — Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Windows Server 2012 R2 📖 ~2 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 […]
FreeBSD 12 — GraphicsMagick-nox — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: ImageMagick and GraphicsMagick — DoS via specially crafted PNG file Related CVEs: CVE-2012-3438 Upstream summary: Kurt Seifried reports: There is an issue in ImageMagick that is also present in GraphicsMagick. […]
Windows Server 2016 – Endpoint filter driver deadlock blocks file and network I/O – Fix and Prevention
🟠 High ⏱ 5–30 min Last verified: 19 May 2026 Affected versions: Windows Server 2016 📖 ~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 […]
FreeBSD 12 — qt — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: kdelibs — integer overflow in khtml Related CVEs: CVE-2004-0691 CVE-2004-0692 CVE-2004-0693 CVE-2006-4811 Upstream summary: Red Hat reports: An integer overflow flaw was found in the way Qt handled pixmap images. […]
How to Monitor ZFS Pool Health on FreeBSD 12
Introduction This guide explains how to Monitor ZFS Pool Health 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 […]
How to Configure Network Load Balancing on Windows Server 2012 R2
How to Configure Network Load Balancing on Windows Server 2012 R2 Network Load Balancing (NLB) distributes incoming TCP/IP traffic across multiple servers in a cluster, providing both scalability and fault tolerance for stateless services such as web servers, terminal servers, and VPN endpoints. Unlike Failover Clustering, which is designed for stateful services with shared storage, […]
