By dbm
Currently, I’m using the latest CentOS, but is not really a CentOS question.
Droplet A: NGINX acting as a reverse proxy serves https requests
Droplet B: Apache Tomcat (my java web server) running on port 80.
Historically when I was not on Digital Ocean, I had physical security and I connected over port 80 between my backend servers
At Digital Ocean, there is not a true ‘private’ network. Only private within Digital Ocean’s thousands of clients.
Some people have mentioned the following:
- IPSec using Strong Swan or something similar
- Using Tomcat’s cryptography (I’m not sure how fast java is at cryptography)
- SSL Tunneling (We’ve used autossh for less critical things, but doesn’t feel right here)
- Running NGINX in front of the tomcat. (Installling another NGINX instance on Droplet B in front of tomcat)
What is the best way to secure and not compromise performance?
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Any of these options should work. #4 would likely be the easiest to implement if you have not previously worked wit Tomcat’s cryptography. I have no data to back this up but 2 and 3 would likely be the fastest but #4 would provide the option for a cache if it would provide any value in your configuration.
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