useful link for proxy and jump server

https://en.wikibooks.org/wiki/OpenSSH/Cookbook/Proxies_and_Jump_Hosts

Aws examples

cross account cloudtrail-cloudwatch-kiness-lamda setup
https://medium.com/@marcusrosen_98470/real-time-log-streaming-with-cloudtrail-and-cloudwatch-logs-3389c4cc5ef4

https://github.com/MarcusRosen/blog/tree/master/Streaming-Log-Delivery