Sean Wei says to YSITD$ seq 11 |while read s; do nslookup s$s.seadog007.me |grep seadog |head -n1 |sed 's/.seadog007.me\tcanonical name =//'; done s1 srv.seadog007.me. s2 srv.pcchou.me. s3 dlab.seadog007.me. s4 dlab2.seadog007.me. s5 dlab3.seadog007.me. s6 s1-seadog007.rhcloud.com. s7 s2-seadog007.rhcloud.com. s8 s3-seadog007.rhcloud.com. s9 koding.seadog007.me. s10 aws1.seadog007.me. s11 do1.seadog007.me.at Thu, May 5, 2016 2:55 PM