Some of my external facing nameservers are under attack, and the biggiest
fallout, is the machines goign into iowait from logging all the client
query denied syslog messages.
note: yes, recursion is turned off on these machines.
The current logging is a very vanilla
logging {
category default { default_syslog; default_debug; };
category lame-servers { null; };
// below 2 lines are for logging EVERY query. this can fill a
drive
//channel "querylog" { file "/var/log/named/query.log"; print-time
yes; };
//category queries { querylog; };
};
I'd like to keep logging going, for obvious reasns, but need to kill the
'client query (cache) denied' messages
sofar all the google-found 'solutions' are: turn off all logging
Thanks
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