Introduction Setting up set up openvswitch on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up OpenVSwitch on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in […]
Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to analyze system errors with diag on ibm aix 7.2 […]
URL: https://www.progressiverobot.com/java-repl-jshell/ Java REPL or jshell is the new tool introduced in [java 9](/community/tutorials/java-9-features-with-examples). Today we will look into Java REPL basics and run some test programs in jshell interface. Java REPL Let's first try to understand why REPL support was added in Java, if it was that important then why in so late release. […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4875-1 Related CVEs: CVE-2020-7247 CVE-2020-8793 CVE-2020-8794 Upstream summary: It was discovered that OpenSMTPD incorrectly verified the sender's or receiver's e-mail addresses under certain conditions. An attacker could possibly use this […]
URL: https://www.progressiverobot.com/java-inner-class/ Java inner class is defined inside the body of another class. Java inner class can be declared private, public, protected, or with default access whereas an outer class can have only public or default access. Java Nested classes are divided into two types. ### static nested class If the nested class is static, […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7211-1 Related CVEs: CVE-2020-11867 Upstream summary: Mike Salvatore discovered that Audacity incorrectly handled default permissions of temporary files created by the application. An attacker could possibly use this issue to […]
This tutorial will guide you through spinning up a cloud servers with Ruby on Rails pre-installed using the the cloud provider Ruby on Rails 1-Click App. After creating your Droplet, you’ll learn about some use cases and common commands. Since this 1-Click Droplet is based on a standard Ubuntu 20.04 Droplet, you can read more of our Ruby tutorials after this guide.
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5027-1 Related CVEs: CVE-2021-32610 CVE-2020-36193 CVE-2020-28948 CVE-2020-28949 Upstream summary: It was discovered that PEAR incorrectly handled symbolic links in archives. A remote attacker could possibly use this issue to execute […]
Introduction to Device Guard Device Guard is a set of hardware and software security features in Windows Server 2019 that locks down a device to run only trusted applications and drivers. It consists of two main components: Virtualization-Based Code Integrity (HVCI, also called Memory Integrity), which uses Hyper-V to protect the kernel from unsigned or […]
Visual Studio Code telah menjadi salah satu editor paling populer untuk Pengembangan Web. Editor ini memperoleh popularitas demikian berkat banyak fitur bawaannya, termasuk integrasi kontrol sumber, yang dinamai Git. Dengan Git sebagai salah satu penyedia Source Control paling populer dan andal, memanfaatkan kekuatannya dari VS Code akan sangat bermanfaat.
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