OpenVPN is open-source commercial software that implements virtual private network (VPN) techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It gives the user the power of the OpenVPN protocol while using an intuitive web interface. With those three steps you’ve got all you need to be able to setup an autoscaling group in AWS that can register new nodes as you need to scale up and scale down! In the near future, we’re also hoping to open source the Terraform module that we use for this at Mixmax so others can use it as well!Įnjoy working on problems that you can't copy-paste a solution for? Drop us a line.Pritunl is an open-source VPN server and management panel. VPN nodes and NAT nodes).Īws ec2 modify-instance-attribute -no-source-dest-check -instance-id= $instance_id -region=us-east-1 Et Voila! # We need to do this for any nodes that need proxy network traffic that isn't # specifically for that node (i.e. # Lastly, we need to disable the source/dest check for this instance. Lastly, we need to disable the source/destination check all EC2 instances in AWS start up with by default. Perfect, now our host can accept traffic as part of our VPN. Python setup.py -host $hostId -action add # HACK: occasionally the servers take a few seconds to propagate the changes # via Mongo :( Print 'Must provide an action of either add or remove' # Note that these variables are passed in via our Terraform template file provider. # Make sure we know where the correct Vault is. # Get the instance's PKCS7 signed document. # Move the binary into location known to our $PATH. # Unzip the downloaded zip file to access the `vault` binary. # Retrieve the Vault binary for our platform. As such, we were able to use Vault in order to retrieve three sensitive credentials that each node needs during its initial boot sequence (which we run as the instance’s user-data). Here at Mixmax, we use Vault for storing secrets and auditing access to them. Bootstrapping the necessary dataīootstrapping data is a difficult problem, or rather, it’s a difficult problem if you don’t use a secret management system. Let’s walk through how we solved the previous problems in the user data template file that every new Pritunl node starts with.
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