https://anatolinicolae.com/
I'm too lazy to code it myself.
I'm too lazy to code it myself.
You could provide some approved outgoing connections to trusted plugin/package repos.
If you want to get stricter only allow incoming connections from the trial user's IP to stop them hosting scam landing pages.
This could actually be the easiest way to deal with it. You can technically remove the block via system firewall, but I guess the abuse is only for cloud VMs that Elest.io provides and not the BYOVM ones, so you can use provider firewall rules to enforce the limit.
oh the irony
https://imgur.com/a/VuQzNll