Operations

How to Set Up OpenTelemetry Collector on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up OpenTelemetry Collector on FreeBSD 13

Introduction How to Set Up OpenTelemetry Collector on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

Read more
FreeBSD 13 — dcraw-m — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — dcraw-m — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: dcraw — integer overflow condition Related CVEs: CVE-2015-3885 Upstream summary: ocert reports: The dcraw tool, as well as several other projects re-using its code, suffers from an integer overflow condition […]

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

How to Configure SMB Multichannel on Windows Server 2019

Introduction to SMB Multichannel on Windows Server 2019 SMB Multichannel is a performance and availability feature introduced in SMB 3.0 that allows a single SMB session to use multiple network connections simultaneously. When a client and server both have multiple network adapters, SMB Multichannel automatically discovers all available paths and aggregates their bandwidth for a […]

Read more
AlmaLinux 8 — usbguard — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — usbguard — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:0087 Related CVEs: CVE-2019-25058 Upstream summary: The USBGuard software framework provides system protection against intrusive USB devices by implementing basic whitelisting and blacklisting capabilities based on device attributes. To enforce a user-defined […]

Read more
FreeBSD 13 — fuser — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — fuser — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: fuser — missing user's privileges check Upstream summary: Denis Barov reports: sysutils/fuser allows user to send any signal to any process when installed with suid bit. Table of contents Symptom […]

Read more
FreeBSD 13 — php5-dtc — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php5-dtc — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 August 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2006-4481 CVE-2006-4482 CVE-2006-4483 CVE-2006-4484 CVE-2006-4485 CVE-2006-4486 CVE-2006-4812 CVE-2006-5178  +8 more Upstream summary: The PHP development team reports: Security Enhancements and Fixes in PHP 5.2.2 […]

Read more
Amazon Linux 2 — wayland — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — wayland — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2103 Related CVEs: CVE-2021-3782 Upstream summary: An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count […]

Read more
Ubuntu 20.04 — etcd — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — etcd — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 August 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6189-1 Related CVEs: CVE-2021-28235 CVE-2020-15106 CVE-2020-15112 CVE-2020-15113 CVE-2020-15114 Upstream summary: It was discovered that etcd leaked credentials when debugging was enabled. This allowed remote attackers to discover etcd authentication credentials […]

Read more
How to Set Up DFS Replication for File Server Redundancy on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up DFS Replication for File Server Redundancy on Windows Server 2019

Introduction to DFS Replication for File Server Redundancy Distributed File System Replication (DFSR) is a Windows Server 2019 feature that provides multi-master, state-based replication of file data between servers. Unlike the deprecated FRS (File Replication Service), DFSR uses the Remote Differential Compression (RDC) algorithm to replicate only the changed portions of files, dramatically reducing replication […]

Read more
Oracle Linux 8 — cloud-init security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — cloud-init security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-6943)

🟡 Medium   ⏱ 10–30 min  Last verified: 11 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6943 Related CVEs: CVE-2023-1786 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
CHAT