Operations

Common Problems 111711

Windows Server 2022 — SNI-based SSL binding conflicts between multiple HTTPS sites on IIS — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 5 March 2023 Affected versions: Windows Server 2022 📖 ~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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Ubuntu 20.04 — linux-oem-5.14 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-oem-5.14 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 March 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5976-1 Related CVEs: CVE-2022-2196 CVE-2022-3061 CVE-2022-3628 CVE-2022-36280 CVE-2022-3646 CVE-2022-3649 CVE-2022-41850 CVE-2023-0394  +12 more Upstream summary: It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did […]

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How to Configure SDN Gateway Pools on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure SDN Gateway Pools on Windows Server 2016

How to Set Up Windows Server 2016 Gateway Pools In a Windows Server 2016 SDN deployment, a Gateway Pool is a logical grouping of RAS Gateway virtual machines managed by the Network Controller. Gateway Pools provide high availability and capacity management for tenant VPN and routing connections. When a tenant requires a gateway connection, the […]

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Oracle Linux 8 — edk2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — edk2 — vulnerability — patch and remediation guide (ELSA-2024-3017)

🟠 High   ⏱ 15–60 min  Last verified: 5 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3017 Related CVEs: CVE-2022-36763 CVE-2022-36764 CVE-2022-36765 CVE-2023-45229 CVE-2023-45232 CVE-2023-45235 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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VMware ESXi 8.0 — vpxa — multiple ESXi vulnerabilities (2 CVEs) — VIB / vLCM patch and remediation guide — diagnosis and fix on VMware ESXi 8.0

VMware ESXi 8.0 — vpxa — multiple ESXi vulnerabilities (2 CVEs) — VIB / vLCM patch and remediation guide

🔴 Critical   ⏱ 30–120 min  Last verified: 25 May 2026 Affected versions: VMware ESXi 8.0 📖 ~4 min read  •  Source: VMware advisory VMSA-2023-0024 Related CVEs: CVE-2023-34048 CVE-2023-34056 Fixed image profile / build: ESXi80U2-22380479 Upstream summary: Out-of-bounds write in the DCERPC protocol implementation (CVE-2023-34048) and partial information disclosure (CVE-2023-34056) on vCenter and ESXi management […]

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Oracle Linux 8 — curl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — curl — vulnerability — patch and remediation guide (ELSA-2022-6159)

🟡 Medium   ⏱ 10–30 min  Last verified: 5 March 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6159 Related CVEs: CVE-2022-32206 CVE-2022-32208 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Configure IIS Authentication on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure IIS Authentication on Windows Server 2022

How to Configure SQL Server Agent Jobs on Windows Server 2022 SQL Server Agent is the built-in job scheduling and automation engine in SQL Server. It runs as a Windows service (SQLSERVERAGENT) and handles routine DBA tasks such as backups, index maintenance, DBCC checks, ETL processing, and alerting. On Windows Server 2022 with SQL Server […]

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Alpine Linux edge — harfbuzz — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — harfbuzz — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 4.4.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — harfbuzz 4.4.1-r0 Related CVEs: CVE-2022-33068 Upstream summary: Alpine main repository for vedge ships harfbuzz 4.4.1-r0 which addresses CVE-2022-33068. Table of contents Symptom & Impact Environment […]

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Oracle Linux 9 — httpd and mod_http2 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — httpd and mod_http2 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-6403)

🟡 Medium   ⏱ 10–30 min  Last verified: 4 March 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6403 Related CVEs: CVE-2023-27522 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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Common Problems 114481

SSHD Access Denied After Hardening Changes

🟡 Medium   ⏱ 5–30 min  Last verified: 4 March 2023 📖 ~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 & Cross-Refs References & Further […]

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