Localhost

The network interface of your own computer, reachable at address 127.0.0.1 (IPv4) or ::1 (IPv6). Services running locally — the Ollama server, LM Studio, web UIs — listen there: your applications connect to the local model without traversing the external network. A well-configured firewall that blocks external access to localhost is the first line of defense: no program can send your content outside without an outbound connection from the machine showing it.