PowerDNS is an advanced, high performance authoritative nameserver compatible with a number of backends. In this case we will use MariaDB to store our zone file records. At the end of this tutorial, you will have a working PowerDNS nameserver that you can use to host DNS for any number of domains.
<$>[warning] Atenção: Uma versão anterior desse guia incluía uma menção aos sistemas Ubuntu 14.04. Embora uma atualização a partir do 14.04 possa completar com sucesso, atualizações entre versões LTS não estão habilitadas por padrão até o primeiro ponto de versão, e é…
🟢 Low ⏱ 5–15 min Last verified: 11 January 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4558-1 Related CVEs: CVE-2019-12412 Upstream summary: It was discovered that libapreq2 did not properly sanitize the Content-Type field in certain, crafted HTTP requests. An attacker could use this vulnerability to […]
🟢 Low ⏱ 5–15 min Last verified: 11 January 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4868-1 Related CVEs: CVE-2019-17362 Upstream summary: It was discovered that LibTomCrypt incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service or read […]
SSL certificates are used within web servers to encrypt the traffic between server and client, providing extra security for users accessing your application. Let’s Encrypt provides an easy way to obtain and install trusted certificates for free.
In this tutorial, we will go over how to use tinc to create a secure VPN on which your servers can communicate as if they were on a local network. We will also demonstrate how to use tinc to set up a secure tunnel into a private network.
🟡 Medium ⏱ 10–30 min Last verified: 9 January 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5662-1 Related CVEs: CVE-2019-16163 CVE-2019-19012 CVE-2019-19203 CVE-2019-19204 CVE-2019-19246 Upstream summary: It was discovered that Oniguruma incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause a […]
In this tutorial, we will go over the installation of Logstash 1.4.2 and Kibana 3, and how to configure them to gather and visualize the syslogs of our systems in a centralized location. Logstash is an open source tool for collecting, parsing, and storing logs for future use. Kibana 3 is a web interface that can be used to search and view the logs that Logstash has indexed.
MariaDB ist ein Open-Source-basiertes Datenbank-Managementsystem, das häufig als Alternative für den MySQL-Teil des beliebten LAMP-Stacks…
Configuration management systems are designed to make controlling large numbers of servers easy for administrators and operations teams. They allow you to control many different systems in an automated way from one central location. Ansible is a simple configuration management system.
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