Backend&Resolver config on 1.6.2

backend live_main
    server main-srv awseb-e-b-AWSEBLoa-*************.eu-west-1.elb.amazonaws.com:80 resolvers mydns check

backend live_secondary
    server secondary-app awseb-e-b-AWSEBLoa-*************.eu-west-1.elb.amazonaws.com:80 resolvers mydns

# To test if a nameserver resolves correctly:
# $> dig @<your-nameserver> <hostname-to-look-up>
resolvers mydns
     # AWS magic dns
     nameserver dns1 172.30.0.2:53
     resolve_retries       3
     timeout retry         1s
     hold valid           5s