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How to Install Portainer on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Portainer on FreeBSD 12

Introduction How to Install Portainer on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 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 filtering, and […]

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Ubuntu 18.04 — nvidia-graphics-drivers-390 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — nvidia-graphics-drivers-390 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 October 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5547-1 Related CVEs: CVE-2022-31607 CVE-2022-31608 CVE-2022-31615 CVE-2021-1093 CVE-2021-1094 CVE-2021-1095 CVE-2021-1076 CVE-2021-1077  +7 more Upstream summary: Le Wu discovered that the NVIDIA graphics drivers did not properly perform input validation in […]

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How To Install Linux, nginx, MySQL, PHP (LEMP) stack on Ubuntu 12.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Linux, nginx, MySQL, PHP (LEMP) stack on Ubuntu 12.04

LEMP stack is a group of open source software to get web servers up and running. The acronym stands for Linux, nginx (pronounced Engine x), MySQL, and PHP. This tutorial explains how to install the required repos to download nginx and php-fpm, how to install MySQL, how to install nginx, how to install php-fpm, how to configure php and nginx, and how to create a php info page. This tutorial is written for Ubuntu 12.04.

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Common Problems 114523

RHEL 9 systemd-resolved DNS lookup delays on servers

🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 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 & Cross-Refs References & Further […]

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Ubuntu 14.04 — busybox — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — busybox — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 October 2022 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6335-1 Related CVEs: CVE-2021-28831 CVE-2022-48174 CVE-2011-5325 CVE-2014-9645 CVE-2015-9261 CVE-2016-2147 CVE-2016-2148 CVE-2017-15873  +4 more Upstream summary: It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or […]

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Oracle Linux 8 — compat-openssl10 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — compat-openssl10 — vulnerability — patch and remediation guide (ELSA-2022-5326)

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5326 Related CVEs: CVE-2022-0778 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 9 — rsync — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — rsync — vulnerability — patch and remediation guide (ELSA-2022-4592)

🟠 High   ⏱ 15–60 min  Last verified: 28 October 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4592 Related CVEs: CVE-2018-25032 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Install and Configure BIND9 DNS Server on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install and Configure BIND9 DNS Server on Debian 11

Introduction How to Install and Configure BIND9 DNS Server on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from […]

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