Logging Monitoring

Debian 11 — metview — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — metview — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-17515 Upstream summary: etc/ObjectList in Metview 4.7.3 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct […]

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

Debian 11 — fence-agents — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-0104 CVE-2019-10153 Upstream summary: In fence-agents before 4.0.17 does not verify remote SSL certificates in the fence_cisco_ucs.py script which can potentially allow for man-in-the-middle attackers to spoof SSL […]

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How to Set Up DHCP Server Authorisation on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up DHCP Server Authorisation on Windows Server 2019

Introduction to DHCP Server Authorisation on Windows Server 2019 DHCP Server Authorisation is an Active Directory feature that prevents rogue DHCP servers from operating in a domain environment. In a Windows domain, before a DHCP server will respond to client requests, it must verify that it is authorised in Active Directory. An unauthorised DHCP server […]

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Alpine Linux edge — perl-image-exiftool — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — perl-image-exiftool — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 12.40-r0 📖 ~4 min read  •  Source: Alpine secdb entry — perl-image-exiftool 12.40-r0 Related CVEs: CVE-2022-23935 CVE-2021-22204 Upstream summary: Alpine community repository for vedge ships perl-image-exiftool 12.40-r0 which addresses CVE-2022-23935. Table of contents Symptom & Impact […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 2 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2131 CVE-2014-6262 Upstream summary: Format string vulnerability in the rrdtool module 1.4.7 for Python, as used in Zenoss, allows context-dependent attackers to cause a denial of service (crash) […]

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SLES 12 — libldap — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libldap — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 2 December 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1018-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-29155 CVE-2020-12243 CVE-2020-25692 CVE-2020-36221 CVE-2020-36222 CVE-2020-36223 CVE-2020-36224 CVE-2020-36225  +12 more Upstream summary: In OpenLDAP 2.x before 2.5.12 and 2.6.x before 2.6.2, a SQL injection vulnerability […]

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How to Set Up Always On VPN with Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Always On VPN with Windows Server 2022

Always On VPN vs DirectAccess: Why the Upgrade Matters Always On VPN (AOVPN) is Microsoft’s modern replacement for DirectAccess, introduced with Windows 10 and Windows Server 2016. While DirectAccess provided transparent remote access using IPv6-over-IPv4 tunneling and IPsec, it was tightly coupled to Active Directory group policy, required IPv6 infrastructure, only supported domain-joined Windows Enterprise […]

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Common Problems 116985

Ubuntu 22.04 LTS – Kubelet node NotReady from cgroup mismatch – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 December 2022 Affected versions: Ubuntu 22.04 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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IBM AIX 7.2 — CVE-2022-40750 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-40750 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 1 December 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-40750, IBM Support Bulletin CVE: CVE-2022-40750 NVD summary: IBM WebSphere Application Server 8.5, and 9.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web […]

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CHAT