Comment by phrotoma
1 day ago
Anybody know what the state of kTLS is? I asked one of the Cilium devs about it a while ago'cause I'd seen Thomas Graf excitedly talking about it and he told me that kernel support in many distros was lacking so they aren't ready to enable it by default.
That's a shame. How hard is it to enable? Do you need a custom kernel, or can you enable it at runtime?
On FreeBSD, its been in the kernel / openssl since 13, and has been one runtime toggle (sysctl kern.ipc.tls.enable=1) away from being enabled. And its enabled by default in the upcoming FreeBSD-15.
We (at Netflix) have run all of our tls encrypted streaming over kTLS for most of a decade.
kTLS just sounds like a bad idea all around.