Expose an Ollama server on the network and allow browser/CORS origins (OLLAMA_HOST, OLLAMA_ORIGINS)
domain: ollama.com · 5 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Ollama binds 127.0.0.1:11434 by default. To listen on all interfaces set OLLAMA_HOST=0.0.0.0:11434 in the server's environment.
Linux (systemd): systemctl edit ollama.service and add under [Service]: Environment="OLLAMA_HOST=0.0.0.0:11434", then systemctl daemon-reload && systemctl restart ollama.
macOS app: launchctl setenv OLLAMA_HOST "0.0.0.0:11434" and restart the Ollama app. Windows: set a user environment variable OLLAMA_HOST and restart Ollama.
Cross-origin browser calls: origins 127.0.0.1 and 0.0.0.0 are allowed by default; add others with OLLAMA_ORIGINS (comma-separated). For browser extensions use origin patterns, e.g. OLLAMA_ORIGINS=chrome-extension://*,moz-extension://*,safari-web-extension://*.
Point clients at the new address, e.g. http://<host-ip>:11434/api/generate.
Known gotchas
Environment variables must be set for the server process (systemd unit / launchctl / Windows env), not in the shell where you run the client — that is the most common 'setting ignored' cause.
There is no built-in authentication; exposing 0.0.0.0 on an untrusted network gives anyone model exec + delete rights. Front it with a reverse proxy or tunnel if remote access is needed.
Browser requests failing only from an extension usually means the extension origin isn't in OLLAMA_ORIGINS — allowed web origins don't cover extension schemes.
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