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

Debian 11 — libseccomp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9893 Upstream summary: libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators (LT, GT, LE, GE), which might able to lead to […]

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Debian 11 — golang-go.crypto — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-go.crypto — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-3204 CVE-2019-11840 CVE-2019-11841 CVE-2020-29652 CVE-2020-9283 CVE-2021-43565 CVE-2022-27191 CVE-2022-30636  +12 more Upstream summary: The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default […]

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Common Problems 111645

Windows Server 2022 AD Sites and Services Replication Topology Not Updating – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Windows Server 2022 📖 ~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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Debian 11 — sanlock — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — sanlock — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-5638 Upstream summary: The setup_logging function in log.h in SANLock uses world-writable permissions for /var/log/sanlock.log, which allows local users to overwrite the file content or bypass intended disk-quota […]

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Ubuntu 22.04 — shim-signed — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — shim-signed — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6355-1 Related CVEs: CVE-2022-28737 CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2021-3981 CVE-2022-28733 CVE-2022-28734 CVE-2022-28735  +3 more Upstream summary: Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local […]

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Ubuntu 16.04 — libhttp-daemon-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libhttp-daemon-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5520-2 Related CVEs: CVE-2022-31081 Upstream summary: USN-5520-1 fixed a vulnerability in HTTP-Daemon. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It […]

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How to Configure Remote Desktop Disk Redirection on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Remote Desktop Disk Redirection on Windows Server 2022

How to Export and Import Hyper-V Virtual Machines on Windows Server 2022 Exporting and importing Hyper-V virtual machines on Windows Server 2022 is the primary method for moving VMs between non-clustered hosts, creating portable backups, duplicating VMs for testing, and migrating workloads to new hardware. Understanding the export structure and the three import modes available […]

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CentOS Stream 9 — logrotate — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — logrotate — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2022:8393 Related CVEs: CVE-2022-1348 Upstream summary: The logrotate utility simplifies the administration of multiple log files by allowing their automatic rotation, compression, removal, and mailing. Security Fix(es): * logrotate: potential DoS […]

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How To Install WordPress with LAMP on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Install WordPress with LAMP on Ubuntu 18.04

WordPress is the most popular CMS (content management system) on the internet. It allows you to easily set up flexible blogs and websites on top of a MySQL backend with PHP processing. In this guide, we’ll focus on getting a WordPress instance set up on a LAMP stack (Linux, Apache, MySQL, and PHP) on an Ubuntu 18.04 server.

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