Operations

How to Deploy a Symfony Application on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Deploy a Symfony Application on CentOS Stream 9

Introduction This tutorial demonstrates how to Deploy a Symfony Application on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the […]

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

FreeBSD 13 — openx — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenX — SQL injection vulnerability Related CVEs: CVE-2013-7149 Upstream summary: Revive reports: An SQL-injection vulnerability was recently discovered and reported to the Revive Adserver team by Florian Sander. The vulnerability […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 9 January 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: graylog — remote code execution in log4j from user-controlled log input Related CVEs: CVE-2021-44228 CVE-2021-45046 Upstream summary: Apache Software Foundation reports: It was found that the fix to address CVE-2021-44228 […]

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Common Problems 112629

Windows Server 2019 — VSS snapshot creation fails during backup windows — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 January 2022 Affected versions: Windows Server 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 […]

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

FreeBSD 13 — cliqz — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Mozilla — Stored passwords in 'Saved Logins' can be copied without master password entry Related CVEs: CVE-2019-11733 Upstream summary: Mozilla Foundation reports: CVE-2019-11733: Stored passwords in 'Saved Logins' can be […]

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How to Configure Prometheus Node Exporter on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Prometheus Node Exporter on FreeBSD 13

Introduction This guide explains how to Configure Prometheus Node Exporter on FreeBSD 13 on FreeBSD 13. 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 […]

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FreeBSD 13 — php55-openssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php55-openssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php5 — multiple vulnerabilities Related CVEs: CVE-2015-6831 CVE-2015-6832 CVE-2015-6833 Upstream summary: The PHP project reports: Core: Fixed bug #69793 (Remotely triggerable stack exhaustion via recursive method calls). Fixed bug #70121 […]

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Debian 11 — linux-ftpd-ssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — linux-ftpd-ssl — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3524 CVE-2007-6263 CVE-2008-4247 Upstream summary: Buffer overflow in the SSL-ready version of linux-ftpd (linux-ftpd-ssl) 0.17 allows remote attackers to execute arbitrary code by creating a long directory name, […]

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How to Configure Network Load Balancing (NLB) on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Network Load Balancing (NLB) on Windows Server 2019

Introduction to Network Load Balancing on Windows Server 2019 Network Load Balancing (NLB) is a built-in Windows Server 2019 feature that distributes incoming TCP/IP traffic across multiple servers to improve scalability and availability for stateless applications. NLB is commonly used for web server farms, Remote Desktop Session Host farms, VPN gateways, and Terminal Services. Unlike […]

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Debian 11 — checkstyle — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — checkstyle — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-10782 CVE-2019-9658 Upstream summary: All versions of com.puppycrawl.tools:checkstyle before 8.29 are vulnerable to XML External Entity (XXE) Injection due to an incomplete fix for CVE-2019-9658. Table of contents […]

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