Troubleshooting

Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol — vulnerability — patch and remediation guide (ELSA-2019-1580)

🟠 High   ⏱ 15–60 min  Last verified: 8 January 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1580 Related CVEs: CVE-2019-10161 CVE-2019-10166 CVE-2019-10167 CVE-2019-10168 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

Read more
How to Set Up iSCSI Initiator on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up iSCSI Initiator on Windows Server 2012 R2

How to Set Up iSCSI Initiator on Windows Server 2012 R2 The iSCSI Initiator allows Windows Server 2012 R2 to connect to iSCSI storage targets — shared storage devices that expose block-level storage over a standard IP network. iSCSI is widely used for connecting servers to SAN (Storage Area Network) devices, NAS appliances with iSCSI […]

Read more
openSUSE Tumbleweed — msmtp — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — msmtp — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2019-8337 Upstream summary: In msmtp 1.8.2 and mpop 1.4.3, when tls_trust_file has its default configuration, certificate-verification results are not properly checked. Table of contents Symptom […]

Read more
Common Problems 115525

RHEL 7 sshd Fails Start Due To StrictModes Permissions

🟠 High   ⏱ 5–30 min  Last verified: 7 January 2020 Affected versions: RHEL 7 📖 ~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 & […]

Read more
How to Configure NPS for 802.1X Authentication on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure NPS for 802.1X Authentication on Windows Server 2012 R2

How to Configure NPS for 802.1X Authentication on Windows Server 2012 R2 Network Policy Server (NPS) is the Microsoft implementation of RADIUS (Remote Authentication Dial-In User Service) on Windows Server 2012 R2. When combined with 802.1X-capable network switches and wireless access points, NPS enables port-based network access control: devices can only connect to the network […]

Read more
Common Problems 113045

Windows Server 2016 – RunAs fails with logon type 2 not granted – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 7 January 2020 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
Alpine Linux edge — pango — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.44.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — pango 1.44.1-r0 Related CVEs: CVE-2019-1010238 Upstream summary: Alpine main repository for vedge ships pango 1.44.1-r0 which addresses CVE-2019-1010238. Table of contents Symptom & Impact Environment […]

Read more
FreeBSD 12 — php55-ftp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php55-ftp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 January 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php5 — multiple vulnerabilities Related CVEs: CVE-2015-4643 CVE-2015-4644 Upstream summary: The PHP project reports: DOM and GD: Fixed bug #69719 (Incorrect handling of paths with NULs). FTP: Improved fix for […]

Read more
How to Configure Windows Server 2019 with Ansible — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Windows Server 2019 with Ansible

Introduction to Ansible for Windows Server 2019 Ansible is an open-source IT automation platform developed by Red Hat that enables infrastructure as code for provisioning, configuration management, application deployment, and orchestration. While Ansible was originally designed for Linux management using SSH, it fully supports Windows Server 2019 management using WinRM (Windows Remote Management) as the […]

Read more
openSUSE Tumbleweed — libXi6 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libXi6 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2013:1103-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-1984 CVE-2013-1995 CVE-2013-1998 Upstream summary: Multiple integer overflows in X.org libXi 1.7.1 and earlier allow X servers to trigger allocation of insufficient memory and a […]

Read more
CHAT