Criminals, The Network, and You [Was: Something Else]

["Paul Ferguson" <fergdawg () netzero net>]

Re-sending due to Merit's minor outage.

- ferg


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- -- Robert Blayzor <rblayzor () inoc net> wrote:

> The fact that they're rejecting on a 5xx error based on no DNS PTR is a=

bit harsh.  While I'm all for requiring all hosts to have valid PTR
records, there are times when transient or problem servers can cause a
DNS lookup failure or miss, etc.  If anything they should be returning a=

4xx to have the remote host"try again later".
>

Oh, wait till you realize that some of the HTTP returns are bogus
altogether -- and actually still serve malware.

It's pretty rampant right now. :-/

- - ferg

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--
"Fergie", a.k.a. Paul Ferguson
 Engineering Architecture for the Internet
 fergdawg(at)netzero.net
 ferg's tech blog: http://fergdawg.blogspot.com/