Hacker News new | ask | show | jobs
by MichaelGG 3669 days ago
How do you do that in CloudFlare? I didn't know you could change the host in non-enterprise versions. All I've seen is the ability to proxy request to a specific IP or CNAME.

If you CNAME your site to foo.github.com, it doesn't change the R-URI or Host header.
1 comments
2bitencryption 3669 days ago
https://www.benburwell.com/posts/configuring-cloudflare-univ...
link
MichaelGG 3668 days ago
That article doesn't address what I said at all. That's showing how to disable encryption on the backend (CF to Github) by selecting "Flexible".

Looking at CF's help again and having used them a bit, there seems to be no way at all to enable full encryption (user-CF-github) with CF's non-enterprise offerings. This is because the request from CF to Github is still requested with your domain name (TLS and host header).

In order for it to work with Github's *.github.io cert, Cloudflare would need to offer an option to rewrite the request itself, not just proxy it.

link
manigandham 3668 days ago
You're right that the host header wouldn't match but Cloudflare has an option to enable SSL to origin without checking for completely validated certificate. They call this Full rather than Strict: https://www.cloudflare.com/a/static/images/ssl/ssl.png

So you can still get an encrypted connection without a verified certificate.

link
MichaelGG 3668 days ago
>encrypted connection without a verified certificate

Encryption doesn't work very well without authentication. In most cases any attacker with access to the medium has read+write. And without auth, you only need to, say, change DNS to insert yourself.

Opportunistic encryption is really just a last-line defence against dragnet type surveillance. Which is good, but it's hardly having end-to-end.

link