[LINK] DNS outage?
stil at stilgherrian.com
Wed Jul 29 09:33:48 AEST 2009
On 29/07/2009, at 9:19 AM, Jan Whitaker wrote:
> I went back to the link that started this discussion, what, 2 days
> ago?, and did another traceroute just now. It still ends up at
> Telstra Brisbane. Does that mean that domain is still blocked?
No, it just means ping is bocked. Traceroute uses ping. Pings don't
always get allowed through any more. Indeed, many networks actively
block such attempts to do reconnaissance like that, for security
reasons, as someone said earlier. Telstra is, in general, one of them.
Indeed, I tend to agree with that sort of network decision. On the
Internet, you're only responsible for the operation of your own
network and how it connects to your peers. What happens inside someone
else's network -- which includes the backbone links -- is not your
problem and none of your business.
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