Activating Your License
Every Virtlix install checks in with the master licensing server every 15 minutes via a scheduled task (license:check). The first time a valid, unused key checks in, it binds permanently to that server's public IP - after that, the same key won't activate on a different server unless the binding is reset from your account.
If the master is unreachable (network blip, firewall issue), Virtlix keeps trusting the last known-good status for up to 7 days before failing closed and suspending itself. This is deliberate: a single missed check shouldn't lock a customer out over a brief outage, but an install that's been unreachable for a week can no longer be trusted to still hold a valid license.
If you ever re-issue a key (say, after buying a new plan), you don't need to touch .env by hand. On its next check-in, Virtlix compares your server's IP against the master's records, and if it finds a different active key already bound to that exact IP, it adopts it automatically and rewrites the config itself.
You can see your current license status, expiry, and VPS usage against your plan's limit any time under Configuration → License Info.