> you could return garbage (127.0.0.1) with a 5 min ttl I use 0.0.0.0, though I'm not sure if some layer in that mess would interpret it creatively. Has worked

> you could return garbage (127.0.0.1) with a 5 min ttl I use 0.0.0.0, though I'm not sure if some layer in that mess would interpret it creatively. Has worked on my machine for years at least: $ ping facebook.com connect: Invalid argument (If you do this, please set the TTL to at least a month, and preferably upwards of a decade.)