You need to be able to have multiple nodes in one LAN access ports on each others’ containers without exposing those to the world and without using additional firewalls in front of the nodes.

That’s why kubernetes ended up removing docker support and instead recommends podman or using containerd natively.

There’s no alternative for 0.0.0.0 and a firewall if you’re e.g. using kubernetes.

That assumes you’re on some VPS with a hardware firewall in front.

Often enough you’re on a dedicated server that’s directly exposed to the internet, with those iptables rules being the only thing standing between your services and the internet.

Just go ahead with the tutorial. Kotlin is basically identical to Java with only tiny changes, and you can just look those up whenever you see something new.

“just works” if you’ve got the fps set to 60 on an M1/M2 macbook and update the OS, you’ve bricked it.

Better laptops tend to put the wifi antenna in the display, so it’s far away from the USB ports when in use. Obviously that’s not compatible with ultra thin laptops.

Badly shielded USB3 causes RF leaks at 2.4GHz. use 5Ghz WiFi or better shielded devices.