How To Install Java with Apt on Debian 10
Java and the JVM (Java Virtual Machine) are required for many kinds of software, including Tomcat, Jetty, Glassfish, Cassandra and…
How To Deliver Messages Based on Routing Keys Using the RabbitMQ and Puka Python Library
This article reviews how to deliver messages based on routing keys using the RabbitMQ and Puka Python libraries.
Debian 9 — libgd2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2017-6362 CVE-2017-7890 CVE-2019-6977 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]
How To Create a Custom Source Plugin in Gatsby
A source plugin is a bundle of code that handles bringing data into the Gatsby ecosystem from a given source. Sources can be from the local filesystem as with Markdown files, databases, published data feeds, or even completely dynamic remote data sources such as APIs. In this tutorial, you will build your own custom source plugin to bring new data into Gatsby from a real-world API. You will also format the data so that it can be accessed throughout Gatsby.
Создание приложения с вдохновляющими цитатами с помощью AdonisJs и MySQL
Автор выбрал Tech Education Fund для получения пожертвования в рамках программы Write for DOnations. AdonisJs — это веб-инфраструктура Node.js,…
How to Monitor MySQL with Prometheus mysqld_exporter on RHEL 7
How to Monitor MySQL with Prometheus mysqld_exporter on RHEL 7 Prometheus is an open-source monitoring system that scrapes metrics from instrumented targets at regular intervals and stores them in a time-series database. For MySQL monitoring, the official mysqld_exporter binary exposes hundreds of MySQL performance schema metrics, InnoDB statistics, replication lag, and query throughput in the […]
Debian 9 – Fail2ban blocks internal monitoring and trusted hosts
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: Debian 9 📖 ~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 & […]
RHEL 9 firewalld rich rules not applying as expected
🟡 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 […]
Amazon Linux 2 — ibus — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2-2020-1555 Related CVEs: CVE-2019-14822 Upstream summary: A flaw was discovered in ibus that allows any unprivileged user to monitor and send method calls to the ibus bus of another user […]
Gentoo Linux — net-misc/openslp — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202005-12 Related CVEs: CVE-2017-17833 CVE-2019-5544 Upstream summary: Multiple vulnerabilities have been discovered in OpenSLP. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]
