# PAC-file example for Yggstack

Yggstack is lightweight proxy server in Go, usually wanted to not represent TUN address into Yggdrasil network.

## Firefox

Unlike static host/port setup, following configuration rewrites only IPv6 (0200::/7) and .ygg (Alfis DNS) requests:

``` file:///path/to/proxy.pac
function FindProxyForURL(url, host)
{
  if (/^0{0,1}[2-3][a-f0-9]{0,2}:/.test(host) || /\.ygg$/.test(host))
  {
    return 'SOCKS5 127.0.0.1:1080; DIRECT';
  }
}
```

## Links

=> https://en.wikipedia.org/wiki/Proxy_auto-config About PAC
=> https://github.com/yggdrasil-network/yggstack Yggstack on GitHub