Tracking the DNS amplification attacks (was: isprime DOS in progress)
mysidia at gmail.com
Sun Jan 25 03:23:05 CST 2009
On Sat, Jan 24, 2009 at 9:00 PM, Frank Bulk <frnkblk at iname.com> wrote:
> I would not recommend sucking in your dns log into array, rather, read line
> by line and iterate over the file, line by line.
True.. reading into an array can get a bit nasty, if your server logs
are a few gigabytes in size.
Could use C, also...
Scanning your logs after the fact is definitely not as good as
separating DNS servers that
are authoritative for zones and picking nameserver software such as
TinyDNS or similar options
for authoritative DNS usage that won't respond to queries for the
root or other zones the DNS
server is not directed to be used for,
and using acls/firewalls to prevent outside queries against other DNS
servers that aren't
It's a bit difficult to apply a BIND patch that doesn't exist yet in
of BIND, at least..
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