Articles by Patrik Habdak
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OpenVPN - Secure you server administration with multiplatform VPN connection
Author: Patrik Habdak •
Tags: debian, linux, security, ubuntu •
Comments: 3 OpenVPN is a full-featured SSL VPN which implements the OSI layer 2 or 3 secure network extension by using the industry standard SSL/TLS protocol. For this tutorial, we are going to use a Debian or Ubuntu server. You can use any server you already have in production.
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Getting started with Let's Encrypt SSL Certificates on Ubuntu
Author: Patrik Habdak •
Tags: linux, security, ubuntu •
Comments: 5 This tutorial will guide you through your very first configuration of an SSL website with Lets Encrypt certification. Let's Encrypt is a new SSL authority that provides free SSL certificates.
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Microsoft Azure Series - Creating a Linux virtual machine from custom image
Author: Patrik Habdak •
Tags: ispconfig, linux, ubuntu, virtualization •
Comments: 2 In the first tutorial, we have learned how to deploy a new virtual machine from default Azure images. In this tutorial, we are going to find out how we can use our existing virtual machine to duplicate it or save as image for further usage.
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Thoughts on intermediate compatibile SSL with Let's Encrypt certificates
Author: Patrik Habdak •
Tags: linux, security •
Comments: 2 Many people have decided to implement Let's Encrypt into their production sites. I find this still a very bad idea to be done without being very (but really very) careful. Let's Encrypt brings you freedom but also limits you in using the certificate with SHA-256 RSA Encryption. Support for SHA-256 has improved over the last few years. Most browsers, platforms, mail clients and mobile devices already support SHA-256. However, some older operating systems such as Windows XP pre-SP3 do not support SHA-256 encryption. Many organizations will be able to convert to SHA-256 without running into user experience issues, and many may want to encourage users running older, less secure systems to upgrade. In this tutorial, we are going to deal with this incompatibility in a simple, but still nasty way.
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Microsoft Azure Series - Creating a Linux virtual machine from template
Author: Patrik Habdak •
Tags: linux, server, ubuntu •
Comments: 0 This tutorial shows you how to create and run a Ubuntu 15.10 virtual machine instance in the Microsoft Azure Cloud. Microsoft Azure Cloud computing is a service made by Microsoft for companies and also end-users who’d like to jump into cloud environment quickly and effectively. Azure offers you many services not only virtual machines. There is also networking services, application services, websites, databases, mobile applications and many more.
