youngdoch.org. 180 IN A 3.34.24.201 youngdoch.org. 180 IN NS ns1.hosting.co.kr. youngdoch.org. 180 IN NS ns4.hosting.co.kr. youngdoch.org. 180 IN NS ns3.hosting.co.kr. youngdoch.org. 180 IN NS ns2.hosting.co.kr. youngdoch.org. 180 IN SOA ns1.hosting.co.kr. admin.youngdoch.org. ( 9 ; serial 21600 ; refresh (6 hours) 1800 ; retry (30 minutes) 1209600 ; expire (2 weeks) 180 ; minimum (3 minutes) )