August 2021 - Page 50 of 69

Common Problems 113399

Windows Server 2012 R2 – LSASS high CPU and authentication slowdowns – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 01 April 2027 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Configure HAProxy Load Balancer on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure HAProxy Load Balancer on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure haproxy load balancer on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

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FreeBSD 13 — syncthing — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — syncthing — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: syncthing — crash due to malformed relay protocol message Related CVEs: CVE-2021-21404 Upstream summary: syncthing developers report: syncthing can be caused to crash and exit if sent a malformed relay […]

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FreeBSD 13 — php5-session — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php5-session — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2007-0905 CVE-2007-0906 CVE-2007-0907 CVE-2007-0908 CVE-2007-0909 CVE-2007-0910 CVE-2007-0988 CVE-2007-1001 Upstream summary: The PHP development team reports: Security Enhancements and Fixes in PHP 5.2.2 and PHP […]

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FreeBSD 13 — mosquitto — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mosquitto — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mosquitto — NULL pointer dereference Upstream summary: Roger Light reports: If an authenticated client connected with MQTT v5 sent a malformed CONNACK message to the broker a NULL pointer dereference […]

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How To Use Joins in SQL — step-by-step DevOps tutorial on Progressive Robot

How To Use Joins in SQL

Many database designs separate information into different tables based on how certain data points relate to one another. Even in cases like this, it’s likely that there will be times when someone will want to retrieve information from more than one table at a time. A common way of accessing data from multiple tables in a single SQL operation is to combine the tables with a JOIN clause. This guide outlines how to retrieve data from multiple tables by joining them together.

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