https://www.ericsimmerman.com/tags/aws-lambda/Recent content in AWS Lambda on technocracyHugoenTue, 16 May 2017 00:00:00 +0000https://www.ericsimmerman.com/blog/2017/05/16/knock-first-firewall-for-aws-security-groups/Tue, 16 May 2017 00:00:00 +0000https://www.ericsimmerman.com/blog/2017/05/16/knock-first-firewall-for-aws-security-groups/<p>I recently <a href="./2017-05-01-setting-up-bastion-host-aws.html" rel="">setup a Bastion host</a> to secure a development environment on AWS. The Bastion only exposes port 22 for SSH and I wanted to restrict access to a whitelist of authorized IP addresses rather than leave port 22 open to the internet. Further - I wanted to restrict 443 and 80 inbound to the development environment so that only authorized users/developers could access the pre-release builds deployed there.</p>