[0] 0.20.39.160.in-addr.arpa.: domain name does not exist
[0] 1.20.39.160.in-addr.arpa.: domain name does not exist
[0] 2.20.39.160.in-addr.arpa.: domain name does not exist
[0] 3.20.39.160.in-addr.arpa.: domain name does not exist
[0] 4.20.39.160.in-addr.arpa.: domain name does not exist
[0] 5.20.39.160.in-addr.arpa.: domain name does not exist
[0] 6.20.39.160.in-addr.arpa.: domain name does not exist
[0] 7.20.39.160.in-addr.arpa.: domain name does not exist
[0] 8.20.39.160.in-addr.arpa.: domain name does not exist
[0] 9.20.39.160.in-addr.arpa.: domain name does not exist
[0] 10.20.39.160.in-addr.arpa.: domain name does not exist
[3600] 11.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-11.dyn.columbia.edu
[3600] 12.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-12.dyn.columbia.edu
[3600] 13.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-13.dyn.columbia.edu
[3600] 14.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-14.dyn.columbia.edu
[3600] 15.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-15.dyn.columbia.edu
[3600] 16.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-16.dyn.columbia.edu
[3600] 17.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-17.dyn.columbia.edu
[3600] 18.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-18.dyn.columbia.edu
[3600] 19.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-19.dyn.columbia.edu
[3600] 20.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-20.dyn.columbia.edu
[3600] 21.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-21.dyn.columbia.edu
[3600] 22.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-22.dyn.columbia.edu
[3600] 23.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-23.dyn.columbia.edu
[3600] 24.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-24.dyn.columbia.edu
[3600] 25.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-25.dyn.columbia.edu
[3600] 26.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-26.dyn.columbia.edu
[3600] 27.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-27.dyn.columbia.edu
[3600] 28.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-28.dyn.columbia.edu
[3600] 29.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-29.dyn.columbia.edu
[3600] 30.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-30.dyn.columbia.edu
[3600] 31.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-31.dyn.columbia.edu
[3600] 32.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-32.dyn.columbia.edu
[3600] 33.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-33.dyn.columbia.edu
[3600] 34.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-34.dyn.columbia.edu
[3600] 35.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-35.dyn.columbia.edu
[3600] 36.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-36.dyn.columbia.edu
[3600] 37.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-37.dyn.columbia.edu
[3600] 38.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-38.dyn.columbia.edu
[3600] 39.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-39.dyn.columbia.edu
[3600] 40.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-40.dyn.columbia.edu
[3600] 41.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-41.dyn.columbia.edu
[3600] 42.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-42.dyn.columbia.edu
[3600] 43.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-43.dyn.columbia.edu
[3600] 44.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-44.dyn.columbia.edu
[3600] 45.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-45.dyn.columbia.edu
[3600] 46.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-46.dyn.columbia.edu
[3600] 47.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-47.dyn.columbia.edu
[3600] 48.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-48.dyn.columbia.edu
[3600] 49.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-49.dyn.columbia.edu
[3600] 50.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-50.dyn.columbia.edu
[3600] 51.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-51.dyn.columbia.edu
[3600] 52.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-52.dyn.columbia.edu
[3600] 53.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-53.dyn.columbia.edu
[3600] 54.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-54.dyn.columbia.edu
[3600] 55.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-55.dyn.columbia.edu
[3600] 56.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-56.dyn.columbia.edu
[3600] 57.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-57.dyn.columbia.edu
[3600] 58.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-58.dyn.columbia.edu
[3600] 59.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-59.dyn.columbia.edu
[3600] 60.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-60.dyn.columbia.edu
[3600] 61.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-61.dyn.columbia.edu
[3600] 62.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-62.dyn.columbia.edu
[3600] 63.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-63.dyn.columbia.edu
[3600] 64.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-64.dyn.columbia.edu
[3600] 65.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-65.dyn.columbia.edu
[3600] 66.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-66.dyn.columbia.edu
[3600] 67.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-67.dyn.columbia.edu
[3600] 68.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-68.dyn.columbia.edu
[3600] 69.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-69.dyn.columbia.edu
[3600] 70.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-70.dyn.columbia.edu
[3600] 71.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-71.dyn.columbia.edu
[3600] 72.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-72.dyn.columbia.edu
[3600] 73.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-73.dyn.columbia.edu
[3600] 74.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-74.dyn.columbia.edu
[3600] 75.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-75.dyn.columbia.edu
[3600] 76.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-76.dyn.columbia.edu
[3600] 77.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-77.dyn.columbia.edu
[3600] 78.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-78.dyn.columbia.edu
[3600] 79.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-79.dyn.columbia.edu
[3600] 80.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-80.dyn.columbia.edu
[3600] 81.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-81.dyn.columbia.edu
[3600] 82.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-82.dyn.columbia.edu
[3600] 83.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-83.dyn.columbia.edu
[3600] 84.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-84.dyn.columbia.edu
[3600] 85.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-85.dyn.columbia.edu
[3600] 86.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-86.dyn.columbia.edu
[3600] 87.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-87.dyn.columbia.edu
[3600] 88.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-88.dyn.columbia.edu
[3600] 89.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-89.dyn.columbia.edu
[3600] 90.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-90.dyn.columbia.edu
[3600] 91.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-91.dyn.columbia.edu
[3600] 92.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-92.dyn.columbia.edu
[3600] 93.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-93.dyn.columbia.edu
[3600] 94.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-94.dyn.columbia.edu
[3600] 95.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-95.dyn.columbia.edu
[3600] 96.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-96.dyn.columbia.edu
[3600] 97.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-97.dyn.columbia.edu
[3600] 98.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-98.dyn.columbia.edu
[3600] 99.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-99.dyn.columbia.edu
[3600] 100.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-100.dyn.columbia.edu
[3600] 101.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-101.dyn.columbia.edu
[3600] 102.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-102.dyn.columbia.edu
[3600] 103.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-103.dyn.columbia.edu
[3600] 104.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-104.dyn.columbia.edu
[3600] 105.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-105.dyn.columbia.edu
[3600] 106.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-106.dyn.columbia.edu
[3600] 107.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-107.dyn.columbia.edu
[3600] 108.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-108.dyn.columbia.edu
[3600] 109.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-109.dyn.columbia.edu
[3600] 110.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-110.dyn.columbia.edu
[3600] 111.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-111.dyn.columbia.edu
[3600] 112.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-112.dyn.columbia.edu
[3600] 113.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-113.dyn.columbia.edu
[3600] 114.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-114.dyn.columbia.edu
[3600] 115.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-115.dyn.columbia.edu
[3600] 116.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-116.dyn.columbia.edu
[3600] 117.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-117.dyn.columbia.edu
[3600] 118.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-118.dyn.columbia.edu
[3600] 119.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-119.dyn.columbia.edu
[3600] 120.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-120.dyn.columbia.edu
[3600] 121.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-121.dyn.columbia.edu
[3600] 122.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-122.dyn.columbia.edu
[3600] 123.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-123.dyn.columbia.edu
[3600] 124.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-124.dyn.columbia.edu
[3600] 125.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-125.dyn.columbia.edu
[3600] 126.20.39.160.in-addr.arpa. domain name pointer dyn-160-39-20-126.dyn.columbia.edu
[0] 127.20.39.160.in-addr.arpa.: domain name does not exist
[0] 128.20.39.160.in-addr.arpa.: domain name does not exist
[0] 129.20.39.160.in-addr.arpa.: domain name does not exist
[0] 130.20.39.160.in-addr.arpa.: domain name does not exist
[0] 131.20.39.160.in-addr.arpa.: domain name does not exist
[0] 132.20.39.160.in-addr.arpa.: domain name does not exist
[0] 133.20.39.160.in-addr.arpa.: domain name does not exist
[0] 134.20.39.160.in-addr.arpa.: domain name does not exist
[0] 135.20.39.160.in-addr.arpa.: domain name does not exist
[0] 136.20.39.160.in-addr.arpa.: domain name does not exist
[0] 137.20.39.160.in-addr.arpa.: domain name does not exist
[0] 138.20.39.160.in-addr.arpa.: domain name does not exist
[0] 139.20.39.160.in-addr.arpa.: domain name does not exist
[0] 140.20.39.160.in-addr.arpa.: domain name does not exist
[0] 141.20.39.160.in-addr.arpa.: domain name does not exist
[0] 142.20.39.160.in-addr.arpa.: domain name does not exist
[0] 143.20.39.160.in-addr.arpa.: domain name does not exist
[0] 144.20.39.160.in-addr.arpa.: domain name does not exist
[0] 145.20.39.160.in-addr.arpa.: domain name does not exist
[0] 146.20.39.160.in-addr.arpa.: domain name does not exist
[0] 147.20.39.160.in-addr.arpa.: domain name does not exist
[0] 148.20.39.160.in-addr.arpa.: domain name does not exist
[0] 149.20.39.160.in-addr.arpa.: domain name does not exist
[0] 150.20.39.160.in-addr.arpa.: domain name does not exist
[0] 151.20.39.160.in-addr.arpa.: domain name does not exist
[0] 152.20.39.160.in-addr.arpa.: domain name does not exist
[0] 153.20.39.160.in-addr.arpa.: domain name does not exist
[0] 154.20.39.160.in-addr.arpa.: domain name does not exist
[0] 155.20.39.160.in-addr.arpa.: domain name does not exist
[0] 156.20.39.160.in-addr.arpa.: domain name does not exist
[0] 157.20.39.160.in-addr.arpa.: domain name does not exist
[0] 158.20.39.160.in-addr.arpa.: domain name does not exist
[0] 159.20.39.160.in-addr.arpa.: domain name does not exist
[0] 160.20.39.160.in-addr.arpa.: domain name does not exist
[0] 161.20.39.160.in-addr.arpa.: domain name does not exist
[0] 162.20.39.160.in-addr.arpa.: domain name does not exist
[0] 163.20.39.160.in-addr.arpa.: domain name does not exist
[0] 164.20.39.160.in-addr.arpa.: domain name does not exist
[0] 165.20.39.160.in-addr.arpa.: domain name does not exist
[0] 166.20.39.160.in-addr.arpa.: domain name does not exist
[0] 167.20.39.160.in-addr.arpa.: domain name does not exist
[0] 168.20.39.160.in-addr.arpa.: domain name does not exist
[0] 169.20.39.160.in-addr.arpa.: domain name does not exist
[0] 170.20.39.160.in-addr.arpa.: domain name does not exist
[0] 171.20.39.160.in-addr.arpa.: domain name does not exist
[0] 172.20.39.160.in-addr.arpa.: domain name does not exist
[0] 173.20.39.160.in-addr.arpa.: domain name does not exist
[0] 174.20.39.160.in-addr.arpa.: domain name does not exist
[0] 175.20.39.160.in-addr.arpa.: domain name does not exist
[0] 176.20.39.160.in-addr.arpa.: domain name does not exist
[0] 177.20.39.160.in-addr.arpa.: domain name does not exist
[0] 178.20.39.160.in-addr.arpa.: domain name does not exist
[0] 179.20.39.160.in-addr.arpa.: domain name does not exist
[0] 180.20.39.160.in-addr.arpa.: domain name does not exist
[0] 181.20.39.160.in-addr.arpa.: domain name does not exist
[0] 182.20.39.160.in-addr.arpa.: domain name does not exist
[0] 183.20.39.160.in-addr.arpa.: domain name does not exist
[0] 184.20.39.160.in-addr.arpa.: domain name does not exist
[0] 185.20.39.160.in-addr.arpa.: domain name does not exist
[0] 186.20.39.160.in-addr.arpa.: domain name does not exist
[0] 187.20.39.160.in-addr.arpa.: domain name does not exist
[0] 188.20.39.160.in-addr.arpa.: domain name does not exist
[0] 189.20.39.160.in-addr.arpa.: domain name does not exist
[0] 190.20.39.160.in-addr.arpa.: domain name does not exist
[0] 191.20.39.160.in-addr.arpa.: domain name does not exist
[0] 192.20.39.160.in-addr.arpa.: domain name does not exist
[0] 193.20.39.160.in-addr.arpa.: domain name does not exist
[0] 194.20.39.160.in-addr.arpa.: domain name does not exist
[0] 195.20.39.160.in-addr.arpa.: domain name does not exist
[0] 196.20.39.160.in-addr.arpa.: domain name does not exist
[0] 197.20.39.160.in-addr.arpa.: domain name does not exist
[0] 198.20.39.160.in-addr.arpa.: domain name does not exist
[0] 199.20.39.160.in-addr.arpa.: domain name does not exist
[0] 200.20.39.160.in-addr.arpa.: domain name does not exist
[0] 201.20.39.160.in-addr.arpa.: domain name does not exist
[0] 202.20.39.160.in-addr.arpa.: domain name does not exist
[0] 203.20.39.160.in-addr.arpa.: domain name does not exist
[0] 204.20.39.160.in-addr.arpa.: domain name does not exist
[0] 205.20.39.160.in-addr.arpa.: domain name does not exist
[0] 206.20.39.160.in-addr.arpa.: domain name does not exist
[0] 207.20.39.160.in-addr.arpa.: domain name does not exist
[0] 208.20.39.160.in-addr.arpa.: domain name does not exist
[0] 209.20.39.160.in-addr.arpa.: domain name does not exist
[0] 210.20.39.160.in-addr.arpa.: domain name does not exist
[0] 211.20.39.160.in-addr.arpa.: domain name does not exist
[0] 212.20.39.160.in-addr.arpa.: domain name does not exist
[0] 213.20.39.160.in-addr.arpa.: domain name does not exist
[0] 214.20.39.160.in-addr.arpa.: domain name does not exist
[0] 215.20.39.160.in-addr.arpa.: domain name does not exist
[0] 216.20.39.160.in-addr.arpa.: domain name does not exist
[0] 217.20.39.160.in-addr.arpa.: domain name does not exist
[0] 218.20.39.160.in-addr.arpa.: domain name does not exist
[0] 219.20.39.160.in-addr.arpa.: domain name does not exist
[0] 220.20.39.160.in-addr.arpa.: domain name does not exist
[0] 221.20.39.160.in-addr.arpa.: domain name does not exist
[0] 222.20.39.160.in-addr.arpa.: domain name does not exist
[0] 223.20.39.160.in-addr.arpa.: domain name does not exist
[0] 224.20.39.160.in-addr.arpa.: domain name does not exist
[0] 225.20.39.160.in-addr.arpa.: domain name does not exist
[0] 226.20.39.160.in-addr.arpa.: domain name does not exist
[0] 227.20.39.160.in-addr.arpa.: domain name does not exist
[0] 228.20.39.160.in-addr.arpa.: domain name does not exist
[0] 229.20.39.160.in-addr.arpa.: domain name does not exist
[0] 230.20.39.160.in-addr.arpa.: domain name does not exist
[0] 231.20.39.160.in-addr.arpa.: domain name does not exist
[0] 232.20.39.160.in-addr.arpa.: domain name does not exist
[0] 233.20.39.160.in-addr.arpa.: domain name does not exist
[0] 234.20.39.160.in-addr.arpa.: domain name does not exist
[0] 235.20.39.160.in-addr.arpa.: domain name does not exist
[0] 236.20.39.160.in-addr.arpa.: domain name does not exist
[0] 237.20.39.160.in-addr.arpa.: domain name does not exist
[0] 238.20.39.160.in-addr.arpa.: domain name does not exist
[0] 239.20.39.160.in-addr.arpa.: domain name does not exist
[0] 240.20.39.160.in-addr.arpa.: domain name does not exist
[0] 241.20.39.160.in-addr.arpa.: domain name does not exist
[0] 242.20.39.160.in-addr.arpa.: domain name does not exist
[0] 243.20.39.160.in-addr.arpa.: domain name does not exist
[0] 244.20.39.160.in-addr.arpa.: domain name does not exist
[0] 245.20.39.160.in-addr.arpa.: domain name does not exist
[0] 246.20.39.160.in-addr.arpa.: domain name does not exist
[0] 247.20.39.160.in-addr.arpa.: domain name does not exist
[0] 248.20.39.160.in-addr.arpa.: domain name does not exist
[0] 249.20.39.160.in-addr.arpa.: domain name does not exist
[0] 250.20.39.160.in-addr.arpa.: domain name does not exist
[0] 251.20.39.160.in-addr.arpa.: domain name does not exist
[0] 252.20.39.160.in-addr.arpa.: domain name does not exist
[0] 253.20.39.160.in-addr.arpa.: domain name does not exist
[0] 254.20.39.160.in-addr.arpa.: domain name does not exist
[0] 255.20.39.160.in-addr.arpa.: domain name does not exist