> ## Documentation Index
> Fetch the complete documentation index at: https://docs.siderolabs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Corporate Proxies

> How to configure Talos Linux to use proxies in a corporate environment

export const VersionWarningBanner = () => {
  const latestVersion = "v1.14";
  const [latestUrl, setLatestUrl] = useState(null);
  const [currentVersion, setCurrentVersion] = useState(null);
  const [isBeta, setIsBeta] = useState(false);
  const parseVersion = v => v.replace("v", "").split(".").map(Number);
  const isGreaterVersion = (a, b) => {
    const [aMajor, aMinor] = parseVersion(a);
    const [bMajor, bMinor] = parseVersion(b);
    if (aMajor > bMajor) return true;
    if (aMajor === bMajor && aMinor > bMinor) return true;
    return false;
  };
  useEffect(() => {
    if (typeof window === "undefined") return;
    const {pathname, hash, search} = window.location;
    const match = pathname.match(/\/talos\/(v\d+\.\d+)\//);
    if (!match) return;
    const detectedVersion = match[1];
    if (detectedVersion === latestVersion) return;
    setCurrentVersion(detectedVersion);
    if (isGreaterVersion(detectedVersion, latestVersion)) {
      setIsBeta(true);
    }
    const newPath = pathname.replace(`/talos/${detectedVersion}/`, `/talos/${latestVersion}/`);
    setLatestUrl(`${newPath}${search}${hash}`);
  }, []);
  if (!latestUrl || !currentVersion) return null;
  return <div className="not-prose sticky top-6 z-50 my-6">
      <div className="border border-yellow-500/30 bg-yellow-500/10 px-4 py-3 rounded-xl">
        <div className="text-sm">
          {isBeta ? <>
              ⚠️ You are viewing a <strong>beta version</strong> of Talos ({currentVersion}).
              This version may be unstable.
              <a href={latestUrl} className="ml-2 underline text-yellow-400 hover:text-yellow-300 font-medium">
                View latest stable version {latestVersion} →
              </a>
            </> : <>
              ⚠️ You are viewing an older version of Talos ({currentVersion}).
              <a href={latestUrl} className="ml-2 underline text-yellow-400 hover:text-yellow-300 font-medium">
                View the latest version {latestVersion} →
              </a>
            </>}
        </div>
      </div>
    </div>;
};

<VersionWarningBanner />

## Appending the certificate authority of MITM proxies

See [Custom Certificate Authorities](../security/certificate-authorities) to append the CA certificate of your corporate proxy to the trusted store.

## Configuring a machine to use the proxy

To configure Talos to use an HTTP or HTTPS proxy, set the appropriate environment variables with the [`EnvironmentConfig`](../reference/configuration/runtime/environmentconfig) document:

```yaml theme={null}
apiVersion: v1alpha1
kind: EnvironmentConfig
variables:
  http_proxy: <http proxy>
  https_proxy: <https proxy>
  no_proxy: <no proxy>
```

In proxy-restricted environments, you may also need to configure DNS with [`ResolverConfig`](../reference/configuration/network/resolverconfig) and NTP with [`TimeSyncConfig`](../reference/configuration/network/timesyncconfig) explicitly:

```yaml theme={null}
apiVersion: v1alpha1
kind: ResolverConfig
nameservers:
  - address: <ip 1>
  - address: <ip 2>
---
apiVersion: v1alpha1
kind: TimeSyncConfig
ntp:
  servers:
    - <server 1>
    - <server 2>
```

If proxy access is required before the machine configuration is applied (for example, during initial boot), provide the proxy settings via [kernel command line arguments](../reference/kernel):

```text theme={null}
talos.environment=http_proxy=<http-proxy> talos.environment=https_proxy=<https-proxy>
```