🟠 High ⏱ 5–30 min Last verified: 27 May 2021 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]
🟢 Low ⏱ 5–15 min Last verified: 27 May 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5232-1 Related CVEs: CVE-2021-32749 Upstream summary: Jakub Żoczek discovered that certain Fail2ban actions handled whois responses in an insecure way. If Fail2ban was configured to use certain mail actions like […]
🟢 Low ⏱ 5–15 min Last verified: 26 May 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4874-1 Related CVEs: CVE-2020-1945 Upstream summary: It was discovered that Apache Ant created temporary files with insecure permissions. An attacker could use this vulnerability to read sensitive information leaked into […]
Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом (Justin Ellingwood) и Намо (Namo) Виртуальная частная сеть (VPN) позволяет…
Linux swaps allow a system to harness more memory than was originally physically available. Here’s how to set up a linux swap file on Ubuntu 12.04
Tinc ist ein Open-Source Virtual Private Network (VPN)-Daemon mit nützlichen Funktionen wie Verschlüsselung, optionaler Komprimierung und automatischem Mesh-Routing, der VPN-Verkehr…
OpenLiteSpeed is an optimized open source web server that can be used to manage and serve sites. As far as Linux web servers are concerned, OpenLiteSpeed has some interesting features that make it a solid choice for many installations. It features Apache compatible rewrite…
TimescaleDB is an open-source database optimized for storing time series data. It is implemented as an extension of PostgreSQL and combines the ease-of-use of relational databases and the speed of NoSQL databases. By following this tutorial, you’ll set up TimescaleDB on Ubuntu 18.04, configure it, and learn how to work with it. You’ll run through creating time series databases and making simple queries. Finally, you’ll see how to compress data and get rid of unnecessary data.
🟡 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 […]
🟡 Medium ⏱ 5–30 min Last verified: 24 May 2021 📖 ~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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