Why *can* cached DNS replies be overwritten?
dot at dotat.at
Mon Aug 11 10:58:45 CDT 2008
On Mon, 11 Aug 2008, Jay R. Ashworth wrote:
> Everyone seems to continue asking "why can poisoning overwrite already
> cached answer" and no one seems to be answering, and, unless I'm a
> moron (which is not impossible), that's the crux of this issue.
Add me to the list of baffled observers. As far as I can tell this
vulnerability to poisoning is mostly forbidden by the trustworthiness
ranking in RFC 2181.
f.anthony.n.finch <dot at dotat.at> http://dotat.at/
VIKING NORTH UTSIRE: SOUTHWEST 5 TO 7 BACKING SOUTHEAST 4 OR 5. ROUGH OR VERY
ROUGH, DECREASING MODERATE LATER. RAIN THEN SHOWERS. MODERATE OR POOR BECOMING
More information about the NANOG