🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2022-24766 Upstream summary: mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.4 and below, a malicious client or server is able to perform HTTP […]
🟠 High ⏱ 15–60 min Last verified: 24 February 2023 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2022:3890-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-24836 CVE-2022-29181 CVE-2018-3740 CVE-2019-5477 CVE-2015-8241 CVE-2015-8317 CVE-2016-5131 CVE-2017-15412 +3 more Upstream summary: Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< […]
How to Configure a DHCP Server on Windows Server 2012 R2 The Dynamic Host Configuration Protocol (DHCP) automates the assignment of IP addresses, subnet masks, default gateways, DNS servers, and other network configuration parameters to clients on a network. Without DHCP, every device would require manual static IP configuration — an unmanageable burden in environments […]
🟠 High ⏱ 15–60 min Last verified: 24 February 2023 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-CU-2022:1151-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-24407 CVE-2019-19906 CVE-2020-8032 CVE-2009-0688 Upstream summary: In Cyrus SASL 2.1.17 through 2.1.27 before 2.1.28, plugins/sql.c does not escape the password for a SQL INSERT or […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read • Source: Rocky Linux RXSA RLSA-2023:5994 Related CVEs: CVE-2023-40217 CVE-2023-32681 Upstream summary: Python is an interpreted, interactive, object-oriented programming language that supports modules, classes, exceptions, high-level dynamic data types, and dynamic typing. The python27 packages […]
🟡 Medium ⏱ 10–30 min Last verified: 24 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2024-1142 Related CVEs: CVE-2023-40225 CVE-2023-45539 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]
Let’s Encryptは、無料のTLS /SSL証明書を取得してインストールし、Webサーバーで暗号化されたHTTPSを有効にする簡単な方法を提供する認証局(CA)です。必要な手順のほとんど（すべてではないにしても）の自動化を試みるソフトウェアクライアントCertbotを提供することにより、プロセスを簡素化します。 このチュートリアルでは、Certbotを使用して、Ubuntu 20.04上のNginx用の無料のSSL証明書を取得し、証明書が自動的に更新されるように設定します。
🔴 Critical ⏱ 15–90 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2-2022-1804 Related CVEs: CVE-2022-1529 CVE-2022-1802 CVE-2020-16044 CVE-2020-15673 CVE-2020-15676 CVE-2020-15677 CVE-2020-15678 CVE-2020-15683 +12 more Upstream summary: The Mozilla Foundation Security Advisory describes this flaw as: An attacker could have sent a […]
Why Monitor Hyper-V with Performance Counters? Performance counters are the foundation of Hyper-V health monitoring on Windows Server 2022. They expose real-time and historical metrics for every layer of the virtualisation stack: hypervisor scheduling, virtual processor utilisation, memory pressure, virtual storage I/O, and virtual network throughput. Without monitoring these counters, capacity planning is guesswork and […]
🟠 High ⏱ 15–60 min Last verified: 23 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2022-5736 Related CVEs: CVE-2022-34169 CVE-2022-21541 CVE-2022-21549 CVE-2022-21540 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]
