Is Your ISP Diverting Your DNS Queries?
http://phnix.wordpress.com/2009/12/04/is-your-isp-diverting-your-dns-queries/
The recent launch of Google’s Public DNS Service has elicited a number of
blog posts focusing on privacy issues. I found two such posts on CircleID,
by Michele Neylon entitled “Google Launch of DNS Service and OpenDNS
Reply” , and Lauren Weinstein’s “Google’s New Public DNS Service – and
Data Retention Issues“.
In the course of reading through these articles, I took note of the issue
of DNS redirection (where ISPs can redirect requests to non-existent
domains to advertising), as well as the more critical practice of DNS
Diversions, which Weinstein explains this way:
Using a different DNS service is usually as "easy" as changing
the IP addresses in your OS DNS settings, but note that if
your ISP is actually diverting the TCP/IP ports that DNS uses
to communicate, it will be impossible for you to switch DNS
servers through normal mechanisms.
Read the entire article at:
http://phnix.wordpress.com/2009/12/04/is-your-isp-diverting-your-dns-queries/
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