[0] 0.21.189.137.in-addr.arpa.: domain name does not exist
[3600] 1.21.189.137.in-addr.arpa. domain name pointer itscpc001.itsc.cuhk.edu.hk
[3600] 2.21.189.137.in-addr.arpa. domain name pointer server2.itsc.cuhk.edu.hk
[3600] 3.21.189.137.in-addr.arpa. domain name pointer itscpc003.itsc.cuhk.edu.hk
[3600] 4.21.189.137.in-addr.arpa. domain name pointer itscpc004.itsc.cuhk.edu.hk
[3600] 5.21.189.137.in-addr.arpa. domain name pointer itscpc005.itsc.cuhk.edu.hk
[3600] 6.21.189.137.in-addr.arpa. domain name pointer itscpc006.itsc.cuhk.edu.hk
[3600] 7.21.189.137.in-addr.arpa. domain name pointer itscpc007.itsc.cuhk.edu.hk
[3600] 8.21.189.137.in-addr.arpa. domain name pointer itscpc008.itsc.cuhk.edu.hk
[3600] 9.21.189.137.in-addr.arpa. domain name pointer backup2.itsc.cuhk.edu.hk
[3600] 10.21.189.137.in-addr.arpa. domain name pointer itscpc010.itsc.cuhk.edu.hk
[3600] 11.21.189.137.in-addr.arpa. domain name pointer itscpc011.itsc.cuhk.edu.hk
[3600] 12.21.189.137.in-addr.arpa. domain name pointer itscpc012.itsc.cuhk.edu.hk
[3600] 13.21.189.137.in-addr.arpa. domain name pointer itscpc013.itsc.cuhk.edu.hk
[3600] 14.21.189.137.in-addr.arpa. domain name pointer itscpc014.itsc.cuhk.edu.hk
[3600] 15.21.189.137.in-addr.arpa. domain name pointer itscpc015.itsc.cuhk.edu.hk
[3600] 16.21.189.137.in-addr.arpa. domain name pointer itscpc016.itsc.cuhk.edu.hk
[3600] 17.21.189.137.in-addr.arpa. domain name pointer itscpc017.itsc.cuhk.edu.hk
[3600] 18.21.189.137.in-addr.arpa. domain name pointer itscpc018.itsc.cuhk.edu.hk
[3600] 19.21.189.137.in-addr.arpa. domain name pointer itscpc019.itsc.cuhk.edu.hk
[3600] 20.21.189.137.in-addr.arpa. domain name pointer itscpc020.itsc.cuhk.edu.hk
[3600] 21.21.189.137.in-addr.arpa. domain name pointer itscpc021.itsc.cuhk.edu.hk
[3600] 22.21.189.137.in-addr.arpa. domain name pointer itscpc022.itsc.cuhk.edu.hk
[3600] 23.21.189.137.in-addr.arpa. domain name pointer itscpc023.itsc.cuhk.edu.hk
[3600] 24.21.189.137.in-addr.arpa. domain name pointer itscpc024.itsc.cuhk.edu.hk
[3600] 25.21.189.137.in-addr.arpa. domain name pointer itscpc025.itsc.cuhk.edu.hk
[3600] 26.21.189.137.in-addr.arpa. domain name pointer itscpc026.itsc.cuhk.edu.hk
[3600] 27.21.189.137.in-addr.arpa. domain name pointer itscpc027.itsc.cuhk.edu.hk
[3600] 28.21.189.137.in-addr.arpa. domain name pointer itscpc028.itsc.cuhk.edu.hk
[3600] 29.21.189.137.in-addr.arpa. domain name pointer datalocker.csc.cuhk.edu.hk
[3600] 30.21.189.137.in-addr.arpa. domain name pointer itscpc030.itsc.cuhk.edu.hk
[3600] 31.21.189.137.in-addr.arpa. domain name pointer itscpc031.itsc.cuhk.edu.hk
[3600] 32.21.189.137.in-addr.arpa. domain name pointer itscpc032.itsc.cuhk.edu.hk
[3600] 33.21.189.137.in-addr.arpa. domain name pointer itscpc033.itsc.cuhk.edu.hk
[3600] 34.21.189.137.in-addr.arpa. domain name pointer itscpc034.itsc.cuhk.edu.hk
[3600] 35.21.189.137.in-addr.arpa. domain name pointer itscpc035.itsc.cuhk.edu.hk
[3600] 36.21.189.137.in-addr.arpa. domain name pointer itscpc036.itsc.cuhk.edu.hk
[3600] 37.21.189.137.in-addr.arpa. domain name pointer itscpc037.itsc.cuhk.edu.hk
[3600] 38.21.189.137.in-addr.arpa. domain name pointer itscpc038.itsc.cuhk.edu.hk
[3600] 39.21.189.137.in-addr.arpa. domain name pointer itscpc039.itsc.cuhk.edu.hk
[3600] 40.21.189.137.in-addr.arpa. domain name pointer serverc1.itsc.cuhk.edu.hk
[3600] 41.21.189.137.in-addr.arpa. domain name pointer itscpc041.itsc.cuhk.edu.hk
[3600] 42.21.189.137.in-addr.arpa. domain name pointer itscpc042.itsc.cuhk.edu.hk
[3600] 43.21.189.137.in-addr.arpa. domain name pointer itscpc043.itsc.cuhk.edu.hk
[3600] 44.21.189.137.in-addr.arpa. domain name pointer itscpc044.itsc.cuhk.edu.hk
[3600] 45.21.189.137.in-addr.arpa. domain name pointer itscpc045.itsc.cuhk.edu.hk
[3600] 46.21.189.137.in-addr.arpa. domain name pointer itscpc046.itsc.cuhk.edu.hk
[3600] 47.21.189.137.in-addr.arpa. domain name pointer itscpc047.itsc.cuhk.edu.hk
[3600] 48.21.189.137.in-addr.arpa. domain name pointer itscpc048.itsc.cuhk.edu.hk
[3600] 49.21.189.137.in-addr.arpa. domain name pointer itscpc049.itsc.cuhk.edu.hk
[3600] 50.21.189.137.in-addr.arpa. domain name pointer itscpc050.itsc.cuhk.edu.hk
[3600] 51.21.189.137.in-addr.arpa. domain name pointer itscpc051.itsc.cuhk.edu.hk
[3600] 52.21.189.137.in-addr.arpa. domain name pointer itscpc052.itsc.cuhk.edu.hk
[3600] 53.21.189.137.in-addr.arpa. domain name pointer itscpc053.itsc.cuhk.edu.hk
[3600] 54.21.189.137.in-addr.arpa. domain name pointer itscpc054.itsc.cuhk.edu.hk
[3600] 55.21.189.137.in-addr.arpa. domain name pointer itscpc055.itsc.cuhk.edu.hk
[3600] 56.21.189.137.in-addr.arpa. domain name pointer itscpc056.itsc.cuhk.edu.hk
[3600] 57.21.189.137.in-addr.arpa. domain name pointer itscpc057.itsc.cuhk.edu.hk
[3600] 58.21.189.137.in-addr.arpa. domain name pointer itscpc058.itsc.cuhk.edu.hk
[3600] 59.21.189.137.in-addr.arpa. domain name pointer itscpc059.itsc.cuhk.edu.hk
[3600] 60.21.189.137.in-addr.arpa. domain name pointer itscpc060.itsc.cuhk.edu.hk
[3600] 61.21.189.137.in-addr.arpa. domain name pointer itscpc061.itsc.cuhk.edu.hk
[3600] 62.21.189.137.in-addr.arpa. domain name pointer itscpc062.itsc.cuhk.edu.hk
[3600] 63.21.189.137.in-addr.arpa. domain name pointer itscpc063.itsc.cuhk.edu.hk
[3600] 64.21.189.137.in-addr.arpa. domain name pointer itscpc064.itsc.cuhk.edu.hk
[3600] 65.21.189.137.in-addr.arpa. domain name pointer itscpc065.itsc.cuhk.edu.hk
[3600] 66.21.189.137.in-addr.arpa. domain name pointer itscpc066.itsc.cuhk.edu.hk
[3600] 67.21.189.137.in-addr.arpa. domain name pointer itscpc067.itsc.cuhk.edu.hk
[3600] 68.21.189.137.in-addr.arpa. domain name pointer itscpc002.itsc.cuhk.edu.hk
[3600] 69.21.189.137.in-addr.arpa. domain name pointer itscpc009.itsc.cuhk.edu.hk
[3600] 70.21.189.137.in-addr.arpa. domain name pointer itscpc029.itsc.cuhk.edu.hk
[3600] 71.21.189.137.in-addr.arpa. domain name pointer itscpc040.itsc.cuhk.edu.hk
[3600] 72.21.189.137.in-addr.arpa. domain name pointer itscpc072.itsc.cuhk.edu.hk
[0] 73.21.189.137.in-addr.arpa.: domain name does not exist
[0] 74.21.189.137.in-addr.arpa.: domain name does not exist
[0] 75.21.189.137.in-addr.arpa.: domain name does not exist
[0] 76.21.189.137.in-addr.arpa.: domain name does not exist
[0] 77.21.189.137.in-addr.arpa.: domain name does not exist
[0] 78.21.189.137.in-addr.arpa.: domain name does not exist
[0] 79.21.189.137.in-addr.arpa.: domain name does not exist
[0] 80.21.189.137.in-addr.arpa.: domain name does not exist
[0] 81.21.189.137.in-addr.arpa.: domain name does not exist
[0] 82.21.189.137.in-addr.arpa.: domain name does not exist
[0] 83.21.189.137.in-addr.arpa.: domain name does not exist
[0] 84.21.189.137.in-addr.arpa.: domain name does not exist
[0] 85.21.189.137.in-addr.arpa.: domain name does not exist
[0] 86.21.189.137.in-addr.arpa.: domain name does not exist
[0] 87.21.189.137.in-addr.arpa.: domain name does not exist
[0] 88.21.189.137.in-addr.arpa.: domain name does not exist
[0] 89.21.189.137.in-addr.arpa.: domain name does not exist
[0] 90.21.189.137.in-addr.arpa.: domain name does not exist
[0] 91.21.189.137.in-addr.arpa.: domain name does not exist
[0] 92.21.189.137.in-addr.arpa.: domain name does not exist
[0] 93.21.189.137.in-addr.arpa.: domain name does not exist
[0] 94.21.189.137.in-addr.arpa.: domain name does not exist
[0] 95.21.189.137.in-addr.arpa.: domain name does not exist
[0] 96.21.189.137.in-addr.arpa.: domain name does not exist
[0] 97.21.189.137.in-addr.arpa.: domain name does not exist
[3600] 98.21.189.137.in-addr.arpa. domain name pointer itscsca98.itsc.cuhk.edu.hk
[3600] 99.21.189.137.in-addr.arpa. domain name pointer itscsca99.itsc.cuhk.edu.hk
[3600] 100.21.189.137.in-addr.arpa. domain name pointer itscpc100.itsc.cuhk.edu.hk
[3600] 101.21.189.137.in-addr.arpa. domain name pointer itscpc101.itsc.cuhk.edu.hk
[3600] 102.21.189.137.in-addr.arpa. domain name pointer itscpc102.itsc.cuhk.edu.hk
[3600] 103.21.189.137.in-addr.arpa. domain name pointer itscpc103.itsc.cuhk.edu.hk
[3600] 104.21.189.137.in-addr.arpa. domain name pointer itscpc104.itsc.cuhk.edu.hk
[3600] 105.21.189.137.in-addr.arpa. domain name pointer itscpc105.itsc.cuhk.edu.hk
[3600] 106.21.189.137.in-addr.arpa. domain name pointer itscpc106.itsc.cuhk.edu.hk
[3600] 107.21.189.137.in-addr.arpa. domain name pointer itscpc107.itsc.cuhk.edu.hk
[3600] 108.21.189.137.in-addr.arpa. domain name pointer itscpc108.itsc.cuhk.edu.hk
[3600] 109.21.189.137.in-addr.arpa. domain name pointer itscpc109.itsc.cuhk.edu.hk
[3600] 110.21.189.137.in-addr.arpa. domain name pointer itscpc110.itsc.cuhk.edu.hk
[3600] 111.21.189.137.in-addr.arpa. domain name pointer itscpc111.itsc.cuhk.edu.hk
[3600] 112.21.189.137.in-addr.arpa. domain name pointer itscpc112.itsc.cuhk.edu.hk
[3600] 113.21.189.137.in-addr.arpa. domain name pointer itscpc113.itsc.cuhk.edu.hk
[3600] 114.21.189.137.in-addr.arpa. domain name pointer itscpc114.itsc.cuhk.edu.hk
[3600] 115.21.189.137.in-addr.arpa. domain name pointer itscpc115.itsc.cuhk.edu.hk
[3600] 116.21.189.137.in-addr.arpa. domain name pointer itscpc116.itsc.cuhk.edu.hk
[3600] 117.21.189.137.in-addr.arpa. domain name pointer itscpc117.itsc.cuhk.edu.hk
[3600] 118.21.189.137.in-addr.arpa. domain name pointer itscpc118.itsc.cuhk.edu.hk
[3600] 119.21.189.137.in-addr.arpa. domain name pointer itscpc119.itsc.cuhk.edu.hk
[3600] 120.21.189.137.in-addr.arpa. domain name pointer itscpc120.itsc.cuhk.edu.hk
[3600] 121.21.189.137.in-addr.arpa. domain name pointer itscpc121.itsc.cuhk.edu.hk
[3600] 122.21.189.137.in-addr.arpa. domain name pointer itscpc122.itsc.cuhk.edu.hk
[3600] 123.21.189.137.in-addr.arpa. domain name pointer itscpc123.itsc.cuhk.edu.hk
[3600] 124.21.189.137.in-addr.arpa. domain name pointer itscpc124.itsc.cuhk.edu.hk
[3600] 125.21.189.137.in-addr.arpa. domain name pointer itscpc125.itsc.cuhk.edu.hk
[3600] 126.21.189.137.in-addr.arpa. domain name pointer itscpc126.itsc.cuhk.edu.hk
[3600] 127.21.189.137.in-addr.arpa. domain name pointer itscpc127.itsc.cuhk.edu.hk
[3600] 128.21.189.137.in-addr.arpa. domain name pointer itscpc128.itsc.cuhk.edu.hk
[3600] 129.21.189.137.in-addr.arpa. domain name pointer itscpc129.itsc.cuhk.edu.hk
[3600] 130.21.189.137.in-addr.arpa. domain name pointer itscpc130.itsc.cuhk.edu.hk
[3600] 131.21.189.137.in-addr.arpa. domain name pointer itscpc131.itsc.cuhk.edu.hk
[3600] 132.21.189.137.in-addr.arpa. domain name pointer itscpc132.itsc.cuhk.edu.hk
[3600] 133.21.189.137.in-addr.arpa. domain name pointer itscpc133.itsc.cuhk.edu.hk
[3600] 134.21.189.137.in-addr.arpa. domain name pointer itscpc134.itsc.cuhk.edu.hk
[3600] 135.21.189.137.in-addr.arpa. domain name pointer itscpc135.itsc.cuhk.edu.hk
[3600] 136.21.189.137.in-addr.arpa. domain name pointer itscpc136.itsc.cuhk.edu.hk
[0] 137.21.189.137.in-addr.arpa.: domain name does not exist
[0] 138.21.189.137.in-addr.arpa.: domain name does not exist
[0] 139.21.189.137.in-addr.arpa.: domain name does not exist
[3600] 140.21.189.137.in-addr.arpa. domain name pointer itscpc140.itsc.cuhk.edu.hk
[3600] 141.21.189.137.in-addr.arpa. domain name pointer itscpc141.itsc.cuhk.edu.hk
[3600] 142.21.189.137.in-addr.arpa. domain name pointer itscpc142.itsc.cuhk.edu.hk
[3600] 143.21.189.137.in-addr.arpa. domain name pointer itscpc143.itsc.cuhk.edu.hk
[3600] 144.21.189.137.in-addr.arpa. domain name pointer itscpc144.itsc.cuhk.edu.hk
[3600] 145.21.189.137.in-addr.arpa. domain name pointer itscpc145.itsc.cuhk.edu.hk
[3600] 146.21.189.137.in-addr.arpa. domain name pointer itscpc146.itsc.cuhk.edu.hk
[3600] 147.21.189.137.in-addr.arpa. domain name pointer itscpc147.itsc.cuhk.edu.hk
[3600] 148.21.189.137.in-addr.arpa. domain name pointer itscpc148.itsc.cuhk.edu.hk
[3600] 149.21.189.137.in-addr.arpa. domain name pointer itscpc149.itsc.cuhk.edu.hk
[3600] 150.21.189.137.in-addr.arpa. domain name pointer itscpc150.itsc.cuhk.edu.hk
[3600] 151.21.189.137.in-addr.arpa. domain name pointer itscpc151.itsc.cuhk.edu.hk
[3600] 152.21.189.137.in-addr.arpa. domain name pointer itscpc152.itsc.cuhk.edu.hk
[3600] 153.21.189.137.in-addr.arpa. domain name pointer itscpc153.itsc.cuhk.edu.hk
[3600] 154.21.189.137.in-addr.arpa. domain name pointer itscpc154.itsc.cuhk.edu.hk
[3600] 155.21.189.137.in-addr.arpa. domain name pointer itscpc155.itsc.cuhk.edu.hk
[3600] 156.21.189.137.in-addr.arpa. domain name pointer itscpc156.itsc.cuhk.edu.hk
[0] 157.21.189.137.in-addr.arpa.: domain name does not exist
[0] 158.21.189.137.in-addr.arpa.: domain name does not exist
[0] 159.21.189.137.in-addr.arpa.: domain name does not exist
[0] 160.21.189.137.in-addr.arpa.: domain name does not exist
[0] 161.21.189.137.in-addr.arpa.: domain name does not exist
[0] 162.21.189.137.in-addr.arpa.: domain name does not exist
[0] 163.21.189.137.in-addr.arpa.: domain name does not exist
[0] 164.21.189.137.in-addr.arpa.: domain name does not exist
[0] 165.21.189.137.in-addr.arpa.: domain name does not exist
[0] 166.21.189.137.in-addr.arpa.: domain name does not exist
[0] 167.21.189.137.in-addr.arpa.: domain name does not exist
[0] 168.21.189.137.in-addr.arpa.: domain name does not exist
[0] 169.21.189.137.in-addr.arpa.: domain name does not exist
[3600] 170.21.189.137.in-addr.arpa. domain name pointer itscpc170.itsc.cuhk.edu.hk
[3600] 171.21.189.137.in-addr.arpa. domain name pointer itscpc171.itsc.cuhk.edu.hk
[3600] 172.21.189.137.in-addr.arpa. domain name pointer itscpc172.itsc.cuhk.edu.hk
[3600] 173.21.189.137.in-addr.arpa. domain name pointer itscpc173.itsc.cuhk.edu.hk
[3600] 174.21.189.137.in-addr.arpa. domain name pointer itscpc174.itsc.cuhk.edu.hk
[3600] 175.21.189.137.in-addr.arpa. domain name pointer itscpc175.itsc.cuhk.edu.hk
[3600] 176.21.189.137.in-addr.arpa. domain name pointer itscpc176.itsc.cuhk.edu.hk
[3600] 177.21.189.137.in-addr.arpa. domain name pointer itscpc177.itsc.cuhk.edu.hk
[3600] 178.21.189.137.in-addr.arpa. domain name pointer itscpc178.itcs.cuhk.edu.hk
[3600] 179.21.189.137.in-addr.arpa. domain name pointer itscpc179.itsc.cuhk.edu.hk
[3600] 180.21.189.137.in-addr.arpa. domain name pointer itscpc180.itsc.cuhk.edu.hk
[3600] 181.21.189.137.in-addr.arpa. domain name pointer itscpc181.itsc.cuhk.edu.hk
[3600] 182.21.189.137.in-addr.arpa. domain name pointer itscpc182.itsc.cuhk.edu.hk
[3600] 183.21.189.137.in-addr.arpa. domain name pointer itscpc183.itsc.cuhk.edu.hk
[3600] 184.21.189.137.in-addr.arpa. domain name pointer itscpc184.itsc.cuhk.edu.hk
[3600] 185.21.189.137.in-addr.arpa. domain name pointer itscpc185.itsc.cuhk.edu.hk
[3600] 186.21.189.137.in-addr.arpa. domain name pointer itscpc186.itsc.cuhk.edu.hk
[3600] 187.21.189.137.in-addr.arpa. domain name pointer itscpc187.itsc.cuhk.edu.hk
[3600] 188.21.189.137.in-addr.arpa. domain name pointer itscpc188.itsc.cuhk.edu.hk
[0] 189.21.189.137.in-addr.arpa.: domain name does not exist
[3600] 190.21.189.137.in-addr.arpa. domain name pointer itscxscamac.itsc.cuhk.edu.hk
[3600] 191.21.189.137.in-addr.arpa. domain name pointer itscxmac1.itsc.cuhk.edu.hk
[0] 192.21.189.137.in-addr.arpa.: domain name does not exist
[0] 193.21.189.137.in-addr.arpa.: domain name does not exist
[0] 194.21.189.137.in-addr.arpa.: domain name does not exist
[0] 195.21.189.137.in-addr.arpa.: domain name does not exist
[0] 196.21.189.137.in-addr.arpa.: domain name does not exist
[0] 197.21.189.137.in-addr.arpa.: domain name does not exist
[0] 198.21.189.137.in-addr.arpa.: domain name does not exist
[3600] 199.21.189.137.in-addr.arpa. domain name pointer itscxscan1.itsc.cuhk.edu.hk
[3600] 200.21.189.137.in-addr.arpa. domain name pointer itscxsca1.itsc.cuhk.edu.hk
[3600] 201.21.189.137.in-addr.arpa. domain name pointer itscxpc01.itsc.cuhk.edu.hk
[3600] 202.21.189.137.in-addr.arpa. domain name pointer itscxpc02.itsc.cuhk.edu.hk
[3600] 203.21.189.137.in-addr.arpa. domain name pointer itscxpc03.itsc.cuhk.edu.hk
[3600] 204.21.189.137.in-addr.arpa. domain name pointer itscxpc04.itsc.cuhk.edu.hk
[3600] 205.21.189.137.in-addr.arpa. domain name pointer itscxpc05.itsc.cuhk.edu.hk
[3600] 206.21.189.137.in-addr.arpa. domain name pointer itscxpc06.itsc.cuhk.edu.hk
[3600] 207.21.189.137.in-addr.arpa. domain name pointer itscxpc07.itsc.cuhk.edu.hk
[3600] 208.21.189.137.in-addr.arpa. domain name pointer itscxpc08.itsc.cuhk.edu.hk
[3600] 209.21.189.137.in-addr.arpa. domain name pointer itscxpc09.itsc.cuhk.edu.hk
[3600] 210.21.189.137.in-addr.arpa. domain name pointer itscxpc10.itsc.cuhk.edu.hk
[3600] 211.21.189.137.in-addr.arpa. domain name pointer itscxpc11.itsc.cuhk.edu.hk
[3600] 212.21.189.137.in-addr.arpa. domain name pointer itscxpc12.itsc.cuhk.edu.hk
[3600] 213.21.189.137.in-addr.arpa. domain name pointer itscxpc13.itsc.cuhk.edu.hk
[3600] 214.21.189.137.in-addr.arpa. domain name pointer itscxpc14.itsc.cuhk.edu.hk
[3600] 215.21.189.137.in-addr.arpa. domain name pointer itscxpc15.itsc.cuhk.edu.hk
[3600] 216.21.189.137.in-addr.arpa. domain name pointer itscxpc16.itsc.cuhk.edu.hk
[3600] 217.21.189.137.in-addr.arpa. domain name pointer itscxpc17.itsc.cuhk.edu.hk
[3600] 218.21.189.137.in-addr.arpa. domain name pointer itscxpc18.itsc.cuhk.edu.hk
[3600] 219.21.189.137.in-addr.arpa. domain name pointer itscxpc19.itsc.cuhk.edu.hk
[3600] 220.21.189.137.in-addr.arpa. domain name pointer itscxpc20.itsc.cuhk.edu.hk
[3600] 221.21.189.137.in-addr.arpa. domain name pointer itscxpc21.itsc.cuhk.edu.hk
[3600] 222.21.189.137.in-addr.arpa. domain name pointer itscxpc22.itsc.cuhk.edu.hk
[3600] 223.21.189.137.in-addr.arpa. domain name pointer itscxpc23.itsc.cuhk.edu.hk
[3600] 224.21.189.137.in-addr.arpa. domain name pointer itscxpc24.itsc.cuhk.edu.hk
[3600] 225.21.189.137.in-addr.arpa. domain name pointer itscxpc25.itsc.cuhk.edu.hk
[3600] 226.21.189.137.in-addr.arpa. domain name pointer itscxpc26.itsc.cuhk.edu.hk
[3600] 227.21.189.137.in-addr.arpa. domain name pointer itscxpc27.itsc.cuhk.edu.hk
[3600] 228.21.189.137.in-addr.arpa. domain name pointer itscxpc28.itsc.cuhk.edu.hk
[3600] 229.21.189.137.in-addr.arpa. domain name pointer itscxpc29.itsc.cuhk.edu.hk
[3600] 230.21.189.137.in-addr.arpa. domain name pointer itscxpc30.itsc.cuhk.edu.hk
[3600] 231.21.189.137.in-addr.arpa. domain name pointer itscxpc31.itsc.cuhk.edu.hk
[3600] 232.21.189.137.in-addr.arpa. domain name pointer itscxpc32.itsc.cuhk.edu.hk
[3600] 233.21.189.137.in-addr.arpa. domain name pointer itscxpc33.itsc.cuhk.edu.hk
[3600] 234.21.189.137.in-addr.arpa. domain name pointer itscxpc34.itsc.cuhk.edu.hk
[3600] 235.21.189.137.in-addr.arpa. domain name pointer itscxpc35.itsc.cuhk.edu.hk
[3600] 236.21.189.137.in-addr.arpa. domain name pointer itscxpc36.itsc.cuhk.edu.hk
[3600] 237.21.189.137.in-addr.arpa. domain name pointer itscxpc37.itsc.cuhk.edu.hk
[3600] 238.21.189.137.in-addr.arpa. domain name pointer itscxpc38.itsc.cuhk.edu.hk
[3600] 239.21.189.137.in-addr.arpa. domain name pointer itscxpc39.itsc.cuhk.edu.hk
[3600] 240.21.189.137.in-addr.arpa. domain name pointer itscxpc40.itsc.cuhk.edu.hk
[3600] 241.21.189.137.in-addr.arpa. domain name pointer itscxpc41.itsc.cuhk.edu.hk
[3600] 242.21.189.137.in-addr.arpa. domain name pointer itscxpc42.itsc.cuhk.edu.hk
[3600] 243.21.189.137.in-addr.arpa. domain name pointer itscxpc43.itsc.cuhk.edu.hk
[3600] 244.21.189.137.in-addr.arpa. domain name pointer itscxpc44.itsc.cuhk.edu.hk
[3600] 245.21.189.137.in-addr.arpa. domain name pointer itscxpc45.itsc.cuhk.edu.hk
[3600] 246.21.189.137.in-addr.arpa. domain name pointer itscxpc46.itsc.cuhk.edu.hk
[3600] 247.21.189.137.in-addr.arpa. domain name pointer itscxpc47.itsc.cuhk.edu.hk
[3600] 248.21.189.137.in-addr.arpa. domain name pointer itscxpc48.itsc.cuhk.edu.hk
[3600] 249.21.189.137.in-addr.arpa. domain name pointer itscxpc49.itsc.cuhk.edu.hk
[0] 250.21.189.137.in-addr.arpa.: domain name does not exist
[0] 251.21.189.137.in-addr.arpa.: domain name does not exist
[0] 252.21.189.137.in-addr.arpa.: domain name does not exist
[0] 253.21.189.137.in-addr.arpa.: domain name does not exist
[0] 254.21.189.137.in-addr.arpa.: domain name does not exist
[0] 255.21.189.137.in-addr.arpa.: domain name does not exist