nanog mailing list archives

Re: DNS Attacks


From: Jeroen Massar <jeroen () unfix org>
Date: Sun, 19 Feb 2012 13:02:01 +0100

On 2012-02-19 12:59 , Patrick W. Gilmore wrote:
On Feb 19, 2012, at 10:59, Ken Gilmour <ken.gilmour () gmail com> wrote:
On Feb 18, 2012 10:24 PM, "Robert Bonomi" <bonomi () mail r-bonomi com> wrote:

Even better, nat to a 'bogon' DNS server -- one that -- regardless of the
query -- returns the address of a dedicated machine on your network set up
especially for this purpose.

What happens when the client sends a POST from a cached page on the end
user's machine? E.g. if they post login credentials. Of course, they'll get
the error page, but then you have confidential data in your logs and now
you have to protect highly confidential info, at least if you're in europe.

It is possible to configure the web server not to log POSTed info.

Per default most webservers (Apache, nginx, etc) won't log POST
variables, GET variables will be logged (as they are part of the query)
but those should not contain any PII.

Greets,
 Jeroen




Current thread: