Envoy is an open source service proxy designed for cloud-native applications. In Kubernetes, Ambassador can be used to install and manage Envoy configuration. Ambassador supports zero downtime configuration changes and integration with other features like authentication, service discovery, and services meshes.
PyFilter aims to filter out all of the illegitimate login requests to your server and block them if too many are sent. In this tutorial, you’ll install and configure PyFilter to block SSH requests. Then you’ll install PyFilter as a service, and optionally configure cross-server ban syncing, a feature that lets multiple servers share the list of banned IP addresses, and enable PyFilter to record location data about an IP address. Finally, you’ll explore how to un-ban IP addresses.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4229-2 Related CVEs: CVE-2018-12327 CVE-2019-8936 CVE-2018-7182 CVE-2018-7183 CVE-2018-7184 CVE-2018-7185 Upstream summary: USN-4229-1 fixed a vulnerability in NTP. This update provides the corresponding update for Ubuntu 18.04 ESM. Original advisory details: […]
Backing up your Apache Kafka data is an important practice that will help you recover from unintended data loss or bad data added to the cluster due to user error. In this tutorial, you will back up, import, and migrate your Kafka data on a single Debian 9 installation as well as on multiple Debian 9 installations on separate servers. ZooKeeper is a critical component of Kafka’s operation, you will also back up ZooKeeper’s data in this tutorial.
Reducing manual data entry between your help desk and billing software starts with clean service categories, ticket to invoice field mapping, secure integrations, validation rules, exception queues, and billing reconciliation that teams can trust.
Sonatype Nexus Repository Manager is a universal binary repository that centralizes storage and distribution of build artifacts across your organization. It supports Maven JARs, npm packages, Docker images, Python packages, RubyGems, and more — acting as both a proxy for upstream registries and a private hosted repository. In large teams and CI/CD pipelines, Nexus reduces […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2009-0793 CVE-2013-4276 Upstream summary: cmsxform.c in LittleCMS (aka lcms or liblcms) 1.18, as used in OpenJDK and other products, allows remote attackers to cause a […]
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 📖 ~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 […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: jansson — local denial of service vulnerabilities Related CVEs: CVE-2016-4425 Upstream summary: QuickFuzz reports: A crash caused by stack exhaustion parsing a JSON was found. Table of contents Symptom & […]
Introduction This tutorial covers How to Set Up a SonarQube Server on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: […]
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