In recent years, Linux distributions have increasingly migrated away from other init systems to systemd. The systemd suite of tools provides a fast and flexible init model for managing an entire machine, from boot onwards. In this guide, we’ll give you a quick run…
How to Deploy Applications with Docker Compose on RHEL 7 Docker Compose lets you define and run multi-container applications using a single YAML file. Instead of managing individual docker run commands for each service, you describe the entire application stack — web server, database, cache, message queue — in a docker-compose.yml file and bring everything […]
O SSH é uma ferramenta importante usada para a administração de servidores Linux remotos. Neste guia, vamos discutir o uso básico deste utilitário e como configurar seu ambiente SSH.
🟡 Medium ⏱ 10–30 min Last verified: 27 July 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2019-3704 Related CVEs: CVE-2019-6446 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
As a follow up to the article on how to compile nginx from source, this tutorial helps you customize the name of the server on your host. Usually, companies modify the server names for security reasons. If a vulnerability is found in a particular version of the webserver, hackers can replicate it to exploit the behaviour.
🟢 Low ⏱ 5–15 min Last verified: 26 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4518-1 Related CVEs: CVE-2020-13696 Upstream summary: Matthias Gerstner discovered that xawtv incorrectly handled opening files. A local attacker could possibly use this issue to open and write to arbitrary files […]
🟠 High ⏱ 15–60 min Last verified: 26 July 2020 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4432-2 Related CVEs: https://launchpad.net/bugs/1889556 https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass CVE-2020-10713 CVE-2020-14308 CVE-2020-14309 CVE-2020-14310 CVE-2020-14311 CVE-2020-15705 +3 more Upstream summary: USN-4432-1 fixed vulnerabilities in GRUB2 affecting Secure Boot environments. Unfortunately, the update introduced regressions for […]
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.
In this guide, you will learn how to install `fail2ban` on a Ubuntu 20.04 server and configure it to monitor your Nginx logs for intrusion attempts. Fail2ban can significantly mitigate brute force attacks by creating rules that automatically alter your firewall configuration to ban specific IPs after a certain number of unsuccessful login attempts. This will allow your server to harden itself against these access attempts without intervention from you.
Introduction How to Set Up WireGuard VPN on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. […]
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