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Networking for Web Developers | Udacity Free Courses
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Not a book, and I only have one (positive) data point from a coworker, but this free Udacity course tackles that subject: https://www.udacity.com/course/networking-for-web-developers...
Udacity has a Networking for Web Developers course, but I'd recommend trying out things (such as running a simple web-app on your own server). Things like:
- Running https://certbot.eff.org/instructions
- Trying out a few different web servers (apache/nginx/caddy)
- Playing around with load-balancers on $cloud_provider.
- Spending time with docker networking (https://docs.docker.com/config/containers/container-networki...)
- Playing around with various X-Forwarded header options in the context of your application
For a web developer, the most useful skill is knowing what each and every component on the pipeline is doing before your code executes on the request. As a common eg, if your application seems to be loading stylesheets from `http://` instead of `https://` despite being loaded over HTTPS, it is often because your application didn't honor the X-Forwarded-Proto header (which most frameworks will do for you). Similarly, seeing a local IP address (192.168.x.y for eg) on a log, and realizing that you should be using the X-Forwarded-Ip by "trusting your proxy" and doing it securely..