Load balancing distributes incoming client requests across multiple backend servers, preventing any single server from becoming a bottleneck and improving both throughput and fault tolerance. Nginx’s built-in load balancing is highly capable and available in the open-source version without any additional modules for most common use cases. On RHEL 8, you can configure Nginx to […]
🟠 High ⏱ 15–60 min Last verified: 5 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2019-1279 Related CVEs: CVE-2018-16878 CVE-2018-16877 CVE-2019-3885 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
🟠 High ⏱ 5–30 min Last verified: 5 November 2021 Affected versions: Ubuntu 14.04 LTS 📖 ~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 […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2021:1586 Related CVEs: CVE-2019-13012 CVE-2020-13543 CVE-2020-13584 CVE-2020-16125 CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2021-1817 +9 more Upstream summary: GNOME is the default desktop environment of AlmaLinux. The following packages have been upgraded to a later […]
🔴 Critical ⏱ 5–30 min Last verified: 5 November 2021 Affected versions: Ubuntu 20.04 LTS 📖 ~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 […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2021:4413 Related CVEs: CVE-2021-3565 Upstream summary: The tpm2-tools packages add a set of utilities for management and utilization of Trusted Platform Module (TPM) 2.0 devices from user space. Security Fix(es): * tpm2-tools: […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2022:0815-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-0561 CVE-2014-8962 CVE-2014-9028 CVE-2017-6888 Upstream summary: In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to a missing bounds check. This […]
This tutorial will show you how to redirect a www URL to non-www, e.g. `www.example.com` to `example.com`, with Apache on Ubuntu 14.04. We will also show you how to redirect in the other direction, from a non-www URL to www.
🟢 Low ⏱ 5–15 min Last verified: 5 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2017-20146 Upstream summary: Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202405-24 Related CVEs: CVE-2021-3403 CVE-2021-3404 Upstream summary: The TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered […]
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