Tag Archives: VPC

AWS Auto-healing VPC NAT Instance

If the NAT instance is terminated or stopped, the status will become”Black Hole” in the route table. All instances in private subnets that associate with the route table will no longer be able to connect to the Internet until the … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , | 1 Comment

Setting up OpenVPN Access Server with CloudFormation

This post is to continue on the my previous post about Setting up OpenvPN Access Server in Amazon VPC. To make it easy to launch it in an existing AWS VPC. I have put together a CloudFormation template to automate … Continue reading

Posted in Uncategorized | Tagged , , , , | 9 Comments

Setting up OpenVPN Access Server in Amazon VPC

Instances in VPC are not accessible from the Internet unless you associate an elastic IP to them. If you don’t want to expose your instances to the public, you may want to  consider setting up an OpenVPN Access Server to … Continue reading

Posted in Uncategorized | Tagged , , , | 2 Comments

Using Sophos UTM to Connect Two VPCs Together

This post is based on Connecting Multiple VPCs with Astaro Security Gateway. VPCs are isolated from each other even they are under the same AWS account in the same region. In order to tie them together, you will  need to establish … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | 1 Comment