Category Archives: Ubuntu

Post that are about the GNU Linux distribution from Ubuntu

Mail Server on Ubuntu 16.04 Part 5

Welcome to Mail Server on Ubuntu 16.04 Part 5. This is the fifth part of a series of blog posts. We will be adding Roundcube, allowing your users to access their email over a secure HTTPS connection from any browser.

Mail Server on Ubuntu 16.04 Part 1
Mail Server on Ubuntu 16.04 Part 2
Mail Server on Ubuntu 16.04 Part 3
Mail Server on Ubuntu 16.04 Part 4

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Mail Server on Ubuntu 16.04 Part 4

Welcome to Mail Server on Ubuntu 16.04 Part 4. This is the forth part of a series of blog posts. We will be adding some extra checking to postfix. This will allow you to effectively blacklist some domains and email addresses. We will also be adding checks for properly formatted domain names and checking the IP address against their DNS lookup.

Mail Server on Ubuntu 16.04 Part 1
Mail Server on Ubuntu 16.04 Part 2
Mail Server on Ubuntu 16.04 Part 3

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Mail Server on Ubuntu 16.04 Part 3

Welcome to Mail Server on Ubuntu 16.04 Part 3. This is the third part of a series of blog posts. We will be adding anti-virus and anti-spam along with some other tools to stop spam and viruses getting through checking in this post.

Mail Server on Ubuntu 16.04 Part 1
Mail Server on Ubuntu 16.04 Part 2

  • Emails will be checked with anti-virus service ClamAV
  • Emails will be checked with anti-spam filters from Spamassassin
  • Grey listing of incoming mail servers with Postgrey

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Mail Server on Ubuntu 16.04 Part 2

Welcome to Mail Server on Ubuntu 16.04 Part 2. This is the second part of a series of blog posts. The mailserver will use Postfix, Dovecot and Amavis. To see Mail Server on Ubuntu 16.04 Part1 follow the link.

In Mail Server on Ubuntu 16.04 Part 2 we will turn on the ability for any user to send and receive emails once they are know to the system.

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Mail Server on Ubuntu 16.04 Part 1

Introduction

Welcome to Mail Server on Ubuntu 16.04 Part 1. This is the first part of a series of blog posts. It will use Postfix, dovecot and amavis. Setting up a mail server is a complex project it is one of the most difficult and complex servers to setup. There are many different tools/packages that have to come together before it is working. There are many more packages that can be installed before you have something that is usable in the real world with all the hackers and spammers around.

*Do not follow this blog post on a production server unless you are
 [crazy|dumb|mad|nutz|stupid] and want to be unemployed!

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Ubuntu 16.04 Mirror on a Synology Diskstation

Creating Ubuntu 16.04 Mirror on a Synology Diskstation

I am constantly installing Ubuntu with various configurations. I find having a local Ubuntu 16.04 Mirror on a Synology Diskstation speeds up the installation and updates, making the time spent setting it up well worth while.

Backup your diskstation before doing anything else, just in case.

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Test Networking Lab Ubuntu On 16.04

Test Networking Lab Ubuntu on 16.04

Overview

I wanted to create a test networking lab Ubuntu on 16.04 for trying out configurations without having to hack my real LAN about. I decided to use VirtualBox virtual machines as they are freely available and work with Linux and you can also use MS Windows guests. The network in the test networking lab Ubuntu on 16.04 will need to separate from our own normal LAN. VirtualBox provides this out of the box. We simply set the network interfaces to us “Internal Network”. This way only VM’s on the host can see each other.

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