pickdns-data updates data.cdb atomically, so you can use it safely while pickdns is running. If anything goes wrong with the creation of data.cdb, pickdns-data stops and leaves the old data.cdb in place.
+fqdn:ipThe domain name fqdn has IP address ip. You can list as many as 128 IP addresses for the same name.
-fqdn:ipThis type of line is used by programs that automatically edit data to temporarily exclude addresses of overloaded or dead machines. The line is ignored.
#commentComment line. The line is ignored.
%lo:ipprefixIP addresses starting with ipprefix are in location lo. lo must be at most two bytes long: e.g., uk.
+fqdn:ip:loThe domain name fqdn has IP address ip for clients in location lo. You can list as many as 128 IP addresses for the same name and location. This eliminates all non-location +fqdn:ip lines from the point of view of those clients.
-fqdn:ip:loIgnored.