Troubleshooting

How to Configure Nginx with ModSecurity WAF on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Nginx with ModSecurity WAF on RHEL 7

How to Configure Nginx with ModSecurity WAF on RHEL 7 While ModSecurity is most commonly associated with Apache, it also runs as a dynamic module for Nginx through the ModSecurity-nginx connector. On RHEL 7, the official Nginx packages do not ship with ModSecurity built in, so you have two practical paths: compile Nginx and ModSecurity […]

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Common Problems 119136

Ubuntu 14.04 LTS – rsyslog causes excessive disk I/O and latency – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 31 October 2019 Affected versions: Ubuntu 14.04 LTS 📖 ~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 12 — rubygem19-rack — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — rubygem19-rack — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ruby Rack Gem — Multiple Issues Related CVEs: CVE-2013-0262 CVE-2013-0263 Upstream summary: Rack developers report: Today we are proud to announce the release of Rack 1.4.5. Fix CVE-2013-0263, timing attack […]

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How to Configure SCOM Monitoring for Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure SCOM Monitoring for Windows Server 2016

How to Set Up System Center Operations Manager (SCOM) on Windows Server 2016 System Center Operations Manager (SCOM) is Microsoft’s enterprise-grade monitoring platform that provides comprehensive health monitoring, alerting, and performance tracking for Windows Server 2016, Linux servers, network devices, and cloud workloads. SCOM uses Management Packs (MPs) to define what to monitor and how […]

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Common Problems 112952

Windows Server 2016 — PXE clients fail to obtain boot options from DHCP policy classes on Server 2019 — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 31 October 2019 Affected versions: Windows Server 2016 📖 ~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 Errors […]

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FreeBSD 12 — php55-snmp — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php55-snmp — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 31 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2015-8879 CVE-2016-5385 CVE-2016-5399 CVE-2016-6288 CVE-2016-6289 CVE-2016-6290 CVE-2016-6291 CVE-2016-6292  +4 more Upstream summary: PHP reports: Fixed bug #69975 (PHP segfaults when accessing nvarchar(max) defined columns) […]

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FreeBSD 12 — apache+mod_ssl+mod_snmp+mod_deflate+ipv — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — apache+mod_ssl+mod_snmp+mod_deflate+ipv — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: apache — Prevent chunk-size integer overflow on platforms where sizeof(int) < sizeof(long) Related CVEs: CVE-2005-2088 CVE-2005-3352 CVE-2006-3747 Upstream summary: Apache ChangeLog reports: Integer overflow in the ap_proxy_send_fb function in proxy/proxy_util.c […]

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How to Set Up Health Attestation Service on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Health Attestation Service on Windows Server 2019

Introduction to Health Attestation Service on Windows Server 2019 Windows Device Health Attestation (DHA) is a security feature that allows organizations to verify the boot-time integrity of Windows devices using measurements stored in the Trusted Platform Module (TPM). The Health Attestation Service on Windows Server 2019 is the on-premises server component that collects, validates, and […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 31 October 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Memory leak in different components Related CVEs: CVE-2018-14072 CVE-2018-14073 Upstream summary: MITRE reports: bsixel 1.8.1 has a memory leak in sixel_decoder_decode in decoder.c, image_buffer_resize in fromsixel.c, sixel_decode_raw in fromsixel.c and […]

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Debian 9 — vim — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — vim — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 October 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-12735 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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