Operations

FreeBSD 13 — isc-dhcp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — isc-dhcp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: isc-dhcpd — format string vulnerabilities Related CVEs: CVE-2004-1006 Upstream summary: The ISC DHCP programs are vulnerable to several format string vulnerabilities which may allow a remote attacker to execute arbitrary […]

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FreeBSD 13 — 3proxy — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — 3proxy — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: fd_set — bitmap index overflow in multiple applications Upstream summary: 3APA3A reports: If programmer fails to check socket number before using select() or fd_set macros, it's possible to overwrite memory […]

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

AlmaLinux 8 — kronosnet — 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-2022:2127 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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How to Migrate from CentOS 8 to Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Migrate from CentOS 8 to Oracle Linux 8

Introduction How to Migrate from CentOS 8 to Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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FreeBSD 13 — ecartis — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ecartis — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ecartis — unauthorised access to admin interface Related CVEs: CVE-2003-0781 CVE-2003-0782 CVE-2004-0913 Upstream summary: A Debian security advisory reports: A problem has been discovered in ecartis, a mailing-list manager, which […]

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Ubuntu 20.04 — lynx — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — lynx — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4800-1 Related CVEs: CVE-2016-9179 CVE-2017-1000211 CVE-2021-38165 Upstream summary: It was discovered that Lynx incorrectly handled certain URLs. A remote attacker could possibly use this issue to obtain sensitive information or […]

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Oracle Linux 8 — java-1.8.0-openjdk — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — java-1.8.0-openjdk — vulnerability — patch and remediation guide (ELSA-2020-2972)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2972 Related CVEs: CVE-2020-14578 CVE-2020-14579 CVE-2020-14583 CVE-2020-14556 CVE-2020-14577 CVE-2020-14593 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Gentoo Linux — app-arch/rpm — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-arch/rpm — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202210-22 Related CVEs: CVE-2021-3521 CVE-2021-35937 CVE-2021-35938 CVE-2021-35939 CVE-2021-20266 CVE-2021-20271 CVE-2021-3421 Upstream summary: Multiple vulnerabilities have been discovered in RPM. Please review the CVE identifiers referenced below for details. Table of contents Symptom […]

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How to Configure Windows Server 2019 Active Directory Health Check — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Windows Server 2019 Active Directory Health Check

How to Configure Windows Server 2019 Active Directory Health Check Regular Active Directory health checks are essential for maintaining a stable and reliable directory service. AD health issues — replication failures, DNS errors, outdated tombstone lifetimes, FSMO role problems — often develop silently and only surface when critical failures occur. Windows Server 2019 provides built-in […]

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