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With this you can retreive the raw data that the etcd middleware used to create the reply. The debug data is put in TXT records that are stuffed in the CH classs. This is only enabled if you specify `debug` in the etcd stanza. You can retrieve it by prefixing your query with 'o-o.debug.' For instance: ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @localhost -p 1053 SRV o-o.debug.production.*.skydns.local ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47798 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 3 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;o-o.debug.production.*.skydns.local. IN SRV ;; ANSWER SECTION: production.*.skydns.local. 154 IN SRV 10 50 8080 service1.example.com. production.*.skydns.local. 154 IN SRV 10 50 8080 service2.example.com. ;; ADDITIONAL SECTION: skydns.local.skydns.east.production.rails.1. 154 CH TXT "service1.example.com:8080(10,0,,false)[0,]" skydns.local.skydns.west.production.rails.2. 154 CH TXT "service2.example.com:8080(10,0,,false)[0,]"