How To Set Up and Configure an OpenVPN Server on CentOS 7
Here we’ll install and configure OpenVPN on a CentOS 7 server. We’ll also discuss how to connect a client to the server on Windows, OS X, and Linux.
How To Install and Secure phpMyAdmin with Nginx on Ubuntu 16.04
Administering relational databases from the command line can be daunting. A project called phpMyAdmin aims to alleviate this by providing an easy to use web interface for MySQL. In this guide, we’ll discuss how to install and secure phpMyAdmin on top of a LEMP (Linux, Nginx, MySQL, and PHP) stack on an Ubuntu 16.04 server.
SLES 15 — procmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 14 August 2019 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2014:1137-1 (see also SUSE bugzilla) Related CVEs: CVE-2014-3618 CVE-2017-16844 Upstream summary: Heap-based buffer overflow in formisc.c in formail in procmail 3.22 allows remote attackers to cause a denial of service (crash) and […]
How To Create a Twitter App with Python
Having access to the Twitter API can help you manage your social media accounts, and allow you to mine social media for data. This can be useful for brand promotion if you represent a business or an organization, and it can be enjoyable and entertaining for individual users…
How to Set Up Varnish Cache as a Reverse Proxy on RHEL 7
How to Set Up Varnish Cache as a Reverse Proxy on RHEL 7 Varnish Cache is a high-performance HTTP reverse proxy and caching accelerator designed to sit in front of your web server. When a visitor requests a page, Varnish checks whether it holds a fresh cached copy. If it does, the response is served […]
Debian 9 — systemd — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 14 August 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2018-16864 CVE-2019-3842 CVE-2019-6454 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 Connect Your Internet of Things with Node-RED on Ubuntu 16.04
Node-RED is a switchboard for the Internet of Things, a visual tool that helps you connect your favorite apps, websites, and hardware together to do new and useful things. Node-RED has a powerful and flexible interface, and a large open source community creating *nodes* to interact with a wide variety of apps and services. In this tutorial, we’ll install Node.js and Node-RED, get an SSL certificate from Let’s Encrypt, and use Nginx to handle secure connections for Node-RED.
How To Build a Discord Bot with Node.js
Discord is a chat application that allows millions of users across the globe to message and voice chat online in communities called guilds or servers. In this tutorial, you will build a Discord bot from scratch, using Node.js and the Discord.js library, which allows users to directly interact with the Discord API. You’ll set up a profile for a Discord bot, get authentication tokens for the bot, and program the bot with the ability to process commands, with arguments, from users.
Debian 10 — libwebp — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 14 August 2019 Affected versions: Debian 10 (buster) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2018-25009 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
An Introduction to JSON
JSON — short for JavaScript Object Notation — is a format for sharing data. As its name suggests, JSON is derived from the JavaScript programming language, but it’s available for use by many languages. This informational guide will get you up to speed with the data you can use in JSON files, and the general structure and syntax of this format.
