Linux

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If you are using LetsEncrypt to secure a mailserver with multiple domains you will have found that all domains must send their mail from the server's domain rather than their own in order to use TLS. This occurs because postscript can only use a single domain for TLS/SSL.

In this post I will describe a method to centralize the TLS certificate in a way that allows each domain to use its own domain name for smtp.

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Part 1: Set Up An AWS Instance With Sufficient EBS Storage Space

Introduction

In this article I set up an AWS EC2 Instance from scratch to run VirtualMin, an open-source virtual server management tool. While Virtumin can be set up on an in-use server, it requires a lot of reconfiguration so it is simpler to set up a new server and proceed from there. At the end of this article we shall have a clean install of VirtualMin ready to accept new websites. This is part 1 where we set up an AWS instance with sufficient storage space to host our virtualmin system.

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Part 2: Prepare Ubuntu LTS To Accept VirtualMin

Introduction

In this article I set up an AWS EC2 Instance from scratch to run VirtualMin, an open-source virtual server management tool. While Virtumin can be set up on an in-use server, it requires a lot of reconfiguration so it is simpler to set up a new server and proceed from there. At the end of this article we shall have a clean install of VirtualMin ready to accept new websites. This is part 2 where we prepare our Ubuntu system to accept VirtualMin.

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Part 3: Download and Install Virtualmin

Introduction

In this article I set up an AWS EC2 Instance from scratch to run VirtualMin, an open-source virtual server management tool. While Virtumin can be set up on an in-use server, it requires a lot of reconfiguration so it is simpler to set up a new server and proceed from there. At the end of this article we shall have a clean install of VirtualMin ready to accept new websites. This is part 3 where we download and install Virtualmin.

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