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On Thu, Jul 20, 2023 at 07:42:44AM -0400, Mouse wrote:
<snip>
> (I can't read the paper you link to; the link you gave,
> http://www.inf.puc-rio.br/~roberto/docs/MCC15-04.pdf, doesn't work for
> me.

https://web.archive.org/web/20040706055406/http://www.inf.puc-rio.br/~roberto/docs/MCC15-04.pdf

> The TCP connection comes up, and it ACKs the request, but even
> after waiting ten minutes I have zero octets of response traffic.
> Oddly, it doesn't answer pings, and mtr to it gets to 139.82.59.22,
> which has forged rDNS, before failing.  Maybe the machine is sick?)

I get 23 hops to 139.82.59.22 (rdc3.rdc.puc-rio.br) from my public IP, but
then it seems ICMP is blocked after that. rDNS looks sane to me, though:

  % host 139.82.16.205
  205.16.82.139.in-addr.arpa domain name pointer ogum.inf.puc-rio.br.
  % host 139.82.59.22
  22.59.82.139.in-addr.arpa domain name pointer rdc3.rdc.puc-rio.br.

www.inf.puc-rio.br CNAME is ogum.inf.puc-rio.br.