replaying queries to a recursive server.

Specifically, dns-replay-proxy reads packets from the given tunnel interface, rewrites the source and destination addresses, recomputes the check-sum and sends out the modified packets.Ī set of scripts that set up port-based routing and dns-replay-proxy for replaying queries against a recursive server in LDplayer.Ī set of scripts that generate zone files in order to replay queries against a recursive server in LDplayer.

Multiple instances of dns-replay-client can work coordinately to replay large query stream with dns-replay-controller.ĭistribute DNS query stream and to queriers (dns-replay-client).Ĭhange DNS queries in a network trace file and generate binary input for dns-replay-.ĭns-replay-proxy manipulates packet addresses to emulate DNS hierarchy in LDplayer. Optionally it can log the latency for each query, or the timing for each query and response. LDplayer consists of a number of components.ĭns-replay-client replays DNS queries against a real DNS server with correct timing. Proceedings of the ACM Internet Measurement Conference (Boston, Massachusetts, USA, Oct. We describe and evaluate LDplayer in the following paper:

It can emulate DNS hierarchy efficiently using minimal commodity Levels of DNS hierarchy, large query rates, and diverse query sources. LDplayer is a configurable, general-purpose DNS trace replay and modification systemĭNS experiments at scale in several dimensions: many zones, numerous

Ldp layer