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How to Use Docker Volumes and Bind Mounts on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Use Docker Volumes and Bind Mounts on RHEL 7

How to Use Docker Volumes and Bind Mounts on RHEL 7 Containers are ephemeral by design — when a container is removed, any data written inside its writable layer is lost. Docker solves this with three types of persistent storage: named volumes, bind mounts, and tmpfs mounts. Named volumes are managed entirely by Docker and […]

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Oracle Linux 8 — Networking Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Networking Issues (OL8-ISSUES-NETWORK)

🟠 High   ⏱ 5–30 min  Last verified: 23 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNT-ol8-issues-network 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 […]

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AlmaLinux 8 — cscope — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — cscope — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:1828 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 117946

Ubuntu 18.04 LTS – DNS resolution fails with systemd-resolved stub issues – Fix & Prevention (FIX-PREVENTION-2)

🟠 High   ⏱ 5–30 min  Last verified: 23 November 2021 Affected versions: Ubuntu 18.04 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 7.1 — CVE-2021-29814 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2021-29814 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 23 November 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2021-29814, IBM Support Bulletin CVE: CVE-2021-29814 NVD summary: IBM Jazz for Service Management 1.1.3.10 and IBM Tivoli Netcool/OMNIbus_GUI is vulnerable to stored cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript […]

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FreeBSD 12 — py36-matrix-synapse — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py36-matrix-synapse — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 November 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-matrix-synapse — several vulnerabilities Related CVEs: CVE-2019-5885 CVE-2020-26257 CVE-2020-26891 CVE-2021-29471 CVE-2021-39163 CVE-2021-39164 CVE-2021-41281 Upstream summary: Matrix developers report: This release patches one high severity issue affecting Synapse installations 1.47.0 and […]

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Common Problems 113050

Windows Server 2016 — Network stack fails after Winsock catalog corruption — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 November 2021 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 […]

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AlmaLinux 8 — nmstate — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — nmstate — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2022:1772 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — rubygem-rails-html-sanitizer — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem-rails-html-sanitizer — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rails-html-sanitizer — possible XSS vulnerability Related CVEs: CVE-2015-7576 CVE-2015-7577 CVE-2015-7581 CVE-2016-0751 CVE-2016-0752 CVE-2016-0753 CVE-2018-3741 Upstream summary: OSS-Security list: There is a possible XSS vulnerability in rails-html-sanitizer. The gem allows non-whitelisted […]

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Plain columns dissolving into light and reassembling as platforms on a raised terrace, the whole arc of modernizing VMware onto Azure native services

Modernizing VMware Using Azure Native Services: The Journey to Cloud-First Architecture

Before 1 November 2026, every pay-as-you-go Azure VMware Solution customer must supply a portable VCF licence key bought from Broadcom. That deadline turned a long-running architecture debate into a scheduling problem. Here is what modernizing VMware using Azure native services actually involves: the four destinations a workload can land in, why Azure Arc should come before any migration, what the business case really looks like across three years, and the limits nobody puts on the slide.

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