ubuntu

Первоначальная настройка сервера с ОС Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Первоначальная настройка сервера с ОС Ubuntu 18.04

При создании нового сервера Ubuntu 18.04 необходимо выполнить ряд операций конфигурирования в рамках ранней стадии базовой настройки. Это повысит уровень безопасности и удобства использования вашего сервера, а также создаст прочную основу для дальнейших…

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Ubuntu 18.04 — lua5.3 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — lua5.3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 26 October 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3941-1 Related CVEs: CVE-2019-6706 Upstream summary: Fady Othman discovered that Lua incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service. Table of […]

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Ubuntu 14.04 — irssi — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — irssi — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 26 October 2019 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3862-1 Related CVEs: CVE-2019-5882 CVE-2018-7050 CVE-2018-7051 CVE-2018-7052 CVE-2018-7053 CVE-2018-7054 CVE-2018-5205 CVE-2018-5206  +12 more Upstream summary: It was discovered that Irssi incorrectly handled certain inputs. An attacker could possibly use this […]

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Common Problems 117951

Ubuntu 18.04 DNS Resolution Fails Intermittently

🟡 Medium   ⏱ 5–30 min  Last verified: 25 October 2019 📖 ~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 18.04 — util-linux — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — util-linux — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 October 2019 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4512-1 Related CVEs: CVE-2018-7738 Upstream summary: It was discovered that the umount bash completion script shipped in util-linux incorrectly handled certain mountpoints. If a local attacker were able to create […]

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How To Install and Configure OSSEC Security Notifications on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Configure OSSEC Security Notifications on Ubuntu 14.04

This tutorial will show you how to install and configure OSSEC to monitor one the cloud provider server running Ubuntu 14.04 LTS. We’ll configure OSSEC so that if a file is modified, deleted, or added to the server, OSSEC will notify you by email – in real-time. That’s in addition to other integrity-checking features that OSSEC offers.

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How To Configure a FreeIPA Client on Ubuntu 16.04 — step-by-step Linux tutorial on Progressive Robot

How To Configure a FreeIPA Client on Ubuntu 16.04

FreeIPA is an open-source security solution for Linux which provides account management and centralized authentication, similar to Microsoft’s Active Directory. FreeIPA is built on top of multiple open source projects including the 389…

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Common Problems 118544

Ubuntu 16.04 LTS nginx fails to start due to certificate chain error

🟠 High   ⏱ 5–30 min  Last verified: 23 October 2019 Affected versions: 16.04 📖 ~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 […]

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