i am trying to build a RBL\DRBL like server but not for blacklists.
i want the dns server to be a forwarder dns server that will have a
special txt response per ip\domain with some data structure i have.
i have seen a bit about RUBYDNS and it seems like a very good solution
for a dns server\forwarder.
the problem is that i kind of lost it somewhere how to get from a the
answer the data i need?
it seems like the answer is a ‘resolve’ class or something like that but
i’m not sure what methods to use to get the response.
this is the basic forwarder server:
require ‘rubygems’
require ‘rubydns’
$R = Resolv::DNS.new
RubyDNS::run_server do
Name = Resolv::DNS::Name
IN = Resolv::DNS::Resource::IN
# Default DNS handler
otherwise do |transaction|
logger.info "Passing DNS request upstream..."
transaction.passthrough!($R)
#here i want to get the transaction and tear it apart for query and
responses.
#what i need is to extract the request domain and A + AAAA records and
the cache period for the response items.
#i dont care about the additional and authority sections. just the
answers.
#then i am sending them to another method for some checks.
end
end
Thanks,
Eliezer