Node.js is a JavaScript runtime built on Chrome’s V8 engine, widely used for building fast, scalable network applications, REST APIs, and real-time services. RHEL 8 provides Node.js through two channels: the built-in AppStream module system and the NodeSource third-party repository, which typically offers newer LTS releases. This tutorial covers both installation methods, verifying the installation, […]
The Apache web server uses virtual hosts to manage multiple domains on a single instance. Similarly, PHP-FPM uses a daemon to manage multiple PHP versions on a single instance. Together, you can use Apache and PHP-FPM to host multiple PHP web-applications, each using a different version of PHP, all on the same server, and all at the same time.
Ruby on Rails is an extremely popular open-source web framework that provides a great way to write web applications with Ruby.
🟢 Low ⏱ 5–15 min Last verified: 10 September 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6048-1 Related CVEs: CVE-2020-36646 Upstream summary: It was discovered that ZenLib doesn't check the return value of a specific operation before using it. An attacker could use a specially crafted […]
🟠 High ⏱ 5–30 min Last verified: 9 September 2020 Affected versions: Debian 10 📖 ~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 ⏱ 5–30 min Last verified: 9 September 2020 📖 ~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 […]
🟡 Medium ⏱ 10–30 min Last verified: 9 September 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-4709 Related CVEs: CVE-2019-20446 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
FreeIPA is an open-source security solution for Linux which provides account management and centralized authentication, similar to Microsoft’s Active Directory. In this tutorial, we will be installing the FreeIPA server on a CentOS 7 server. You can then configure client machines, allowing FreeIPA users to log in with their IPA credentials.
Control groups, or cgroups, is a kernel feature introduced in CentOS 6 to provide a new way of limiting access to system resources for processes.
This tutorial explains how to create a self-signed SSL certificate, how to add it to your server, and how to configure the SSL file to display the certificate to the world. A SSL certificate is a way to encrypt a site’s information and create a more secure connection. Certificate Authorities can issue SSL certificates that verify the server’s details while a self-signed certificate has no 3rd party corroboration. These steps are for setting up an SSL certificate on Nginx for a CentOS server.
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