This tutorial will be installing an OpenVPN Server on Ubuntu 14.04 using routing and giving the external client full access to your LAN.
Installing an OpenVPN Server on Ubuntu 14.04 is not that difficult when you have already gained the necessary skills and knowledge for, IP addresses, netmasks, subnets, DNS names, IP routing, routers, network interfaces, LANs, gateways, and firewall rules.
I have been asked several times about reducing the “swapiness” on a Linux machine to make the machine more responsive. So here is a post on how to do that. Remember just because you can does not make it a good thing to do.
If the machine has 8GB or more RAM turn down the swapiness. That is, if you do not want the system using swap until only 10-15% of RAM is left unused. Then this is the post for you.
In this part we will be adding to the mail server created in Installing A Mailserver on Ubuntu 14.04 LTS Part 1, in this part we will be building on that and adding anti-virus and anti-spam software and a tool to greylist emails to cut down on the work our server has to do. This will be added to postfix via amavis-new.
The server called mailserver will end up running the following servers and services. Once all the parts of this series posts are completed.
I wrote this HOWTO as record of what I did to get my own mail server up and running. I can now and in the future follow these steps again and rebuild my own mail server. I hope it is of use to others too.