[0] 0.42.189.18.in-addr.arpa.: domain name does not exist
[0] 1.42.189.18.in-addr.arpa.: domain name does not exist
[0] 2.42.189.18.in-addr.arpa.: domain name does not exist
[0] 3.42.189.18.in-addr.arpa.: domain name does not exist
[0] 4.42.189.18.in-addr.arpa.: domain name does not exist
[0] 5.42.189.18.in-addr.arpa.: domain name does not exist
[60] 6.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-6.dyn.mit.edu
[0] 7.42.189.18.in-addr.arpa.: domain name does not exist
[0] 8.42.189.18.in-addr.arpa.: domain name does not exist
[60] 9.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-9.dyn.mit.edu
[0] 10.42.189.18.in-addr.arpa.: domain name does not exist
[0] 11.42.189.18.in-addr.arpa.: domain name does not exist
[0] 12.42.189.18.in-addr.arpa.: domain name does not exist
[0] 13.42.189.18.in-addr.arpa.: domain name does not exist
[0] 14.42.189.18.in-addr.arpa.: domain name does not exist
[60] 15.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-15.dyn.mit.edu
[60] 16.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-16.dyn.mit.edu
[0] 17.42.189.18.in-addr.arpa.: domain name does not exist
[0] 18.42.189.18.in-addr.arpa.: domain name does not exist
[0] 19.42.189.18.in-addr.arpa.: domain name does not exist
[60] 20.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-20.dyn.mit.edu
[60] 21.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-21.dyn.mit.edu
[0] 22.42.189.18.in-addr.arpa.: domain name does not exist
[60] 23.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-23.dyn.mit.edu
[0] 24.42.189.18.in-addr.arpa.: domain name does not exist
[0] 25.42.189.18.in-addr.arpa.: domain name does not exist
[60] 26.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-26.dyn.mit.edu
[0] 27.42.189.18.in-addr.arpa.: domain name does not exist
[60] 28.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-28.dyn.mit.edu
[0] 29.42.189.18.in-addr.arpa.: domain name does not exist
[60] 30.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-30.dyn.mit.edu
[60] 31.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-31.dyn.mit.edu
[60] 32.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-32.dyn.mit.edu
[60] 33.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-33.dyn.mit.edu
[60] 34.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-34.dyn.mit.edu
[60] 35.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-35.dyn.mit.edu
[60] 36.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-36.dyn.mit.edu
[60] 37.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-37.dyn.mit.edu
[0] 38.42.189.18.in-addr.arpa.: domain name does not exist
[0] 39.42.189.18.in-addr.arpa.: domain name does not exist
[60] 40.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-40.dyn.mit.edu
[60] 41.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-41.dyn.mit.edu
[60] 42.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-42.dyn.mit.edu
[0] 43.42.189.18.in-addr.arpa.: domain name does not exist
[0] 44.42.189.18.in-addr.arpa.: domain name does not exist
[60] 45.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-45.dyn.mit.edu
[0] 46.42.189.18.in-addr.arpa.: domain name does not exist
[60] 47.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-47.dyn.mit.edu
[60] 48.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-48.dyn.mit.edu
[0] 49.42.189.18.in-addr.arpa.: domain name does not exist
[0] 50.42.189.18.in-addr.arpa.: domain name does not exist
[60] 51.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-51.dyn.mit.edu
[60] 52.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-52.dyn.mit.edu
[0] 53.42.189.18.in-addr.arpa.: domain name does not exist
[60] 54.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-54.dyn.mit.edu
[60] 55.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-55.dyn.mit.edu
[60] 56.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-56.dyn.mit.edu
[0] 57.42.189.18.in-addr.arpa.: domain name does not exist
[60] 58.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-58.dyn.mit.edu
[0] 59.42.189.18.in-addr.arpa.: domain name does not exist
[60] 60.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-60.dyn.mit.edu
[60] 61.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-61.dyn.mit.edu
[60] 62.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-62.dyn.mit.edu
[60] 63.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-63.dyn.mit.edu
[0] 64.42.189.18.in-addr.arpa.: domain name does not exist
[60] 65.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-65.dyn.mit.edu
[60] 66.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-66.dyn.mit.edu
[60] 67.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-67.dyn.mit.edu
[60] 68.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-68.dyn.mit.edu
[60] 69.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-69.dyn.mit.edu
[0] 70.42.189.18.in-addr.arpa.: domain name does not exist
[60] 71.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-71.dyn.mit.edu
[0] 72.42.189.18.in-addr.arpa.: domain name does not exist
[60] 73.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-73.dyn.mit.edu
[60] 74.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-74.dyn.mit.edu
[60] 75.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-75.dyn.mit.edu
[60] 76.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-76.dyn.mit.edu
[0] 77.42.189.18.in-addr.arpa.: domain name does not exist
[60] 78.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-78.dyn.mit.edu
[0] 79.42.189.18.in-addr.arpa.: domain name does not exist
[0] 80.42.189.18.in-addr.arpa.: domain name does not exist
[60] 81.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-81.dyn.mit.edu
[60] 82.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-82.dyn.mit.edu
[0] 83.42.189.18.in-addr.arpa.: domain name does not exist
[0] 84.42.189.18.in-addr.arpa.: domain name does not exist
[60] 85.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-85.dyn.mit.edu
[60] 86.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-86.dyn.mit.edu
[60] 87.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-87.dyn.mit.edu
[60] 88.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-88.dyn.mit.edu
[60] 89.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-89.dyn.mit.edu
[0] 90.42.189.18.in-addr.arpa.: domain name does not exist
[0] 91.42.189.18.in-addr.arpa.: domain name does not exist
[0] 92.42.189.18.in-addr.arpa.: domain name does not exist
[60] 93.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-93.dyn.mit.edu
[0] 94.42.189.18.in-addr.arpa.: domain name does not exist
[0] 95.42.189.18.in-addr.arpa.: domain name does not exist
[60] 96.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-96.dyn.mit.edu
[0] 97.42.189.18.in-addr.arpa.: domain name does not exist
[0] 98.42.189.18.in-addr.arpa.: domain name does not exist
[0] 99.42.189.18.in-addr.arpa.: domain name does not exist
[0] 100.42.189.18.in-addr.arpa.: domain name does not exist
[0] 101.42.189.18.in-addr.arpa.: domain name does not exist
[60] 102.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-102.dyn.mit.edu
[0] 103.42.189.18.in-addr.arpa.: domain name does not exist
[0] 104.42.189.18.in-addr.arpa.: domain name does not exist
[60] 105.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-105.dyn.mit.edu
[0] 106.42.189.18.in-addr.arpa.: domain name does not exist
[60] 107.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-107.dyn.mit.edu
[0] 108.42.189.18.in-addr.arpa.: domain name does not exist
[0] 109.42.189.18.in-addr.arpa.: domain name does not exist
[60] 110.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-110.dyn.mit.edu
[60] 111.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-111.dyn.mit.edu
[60] 112.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-112.dyn.mit.edu
[60] 113.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-113.dyn.mit.edu
[0] 114.42.189.18.in-addr.arpa.: domain name does not exist
[0] 115.42.189.18.in-addr.arpa.: domain name does not exist
[0] 116.42.189.18.in-addr.arpa.: domain name does not exist
[60] 117.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-117.dyn.mit.edu
[0] 118.42.189.18.in-addr.arpa.: domain name does not exist
[0] 119.42.189.18.in-addr.arpa.: domain name does not exist
[60] 120.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-120.dyn.mit.edu
[60] 121.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-121.dyn.mit.edu
[0] 122.42.189.18.in-addr.arpa.: domain name does not exist
[60] 123.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-123.dyn.mit.edu
[0] 124.42.189.18.in-addr.arpa.: domain name does not exist
[60] 125.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-125.dyn.mit.edu
[60] 126.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-126.dyn.mit.edu
[0] 127.42.189.18.in-addr.arpa.: domain name does not exist
[0] 128.42.189.18.in-addr.arpa.: domain name does not exist
[60] 129.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-129.dyn.mit.edu
[60] 130.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-130.dyn.mit.edu
[60] 131.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-131.dyn.mit.edu
[60] 132.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-132.dyn.mit.edu
[60] 133.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-133.dyn.mit.edu
[0] 134.42.189.18.in-addr.arpa.: domain name does not exist
[0] 135.42.189.18.in-addr.arpa.: domain name does not exist
[0] 136.42.189.18.in-addr.arpa.: domain name does not exist
[60] 137.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-137.dyn.mit.edu
[0] 138.42.189.18.in-addr.arpa.: domain name does not exist
[0] 139.42.189.18.in-addr.arpa.: domain name does not exist
[60] 140.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-140.dyn.mit.edu
[60] 141.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-141.dyn.mit.edu
[60] 142.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-142.dyn.mit.edu
[0] 143.42.189.18.in-addr.arpa.: domain name does not exist
[60] 144.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-144.dyn.mit.edu
[0] 145.42.189.18.in-addr.arpa.: domain name does not exist
[0] 146.42.189.18.in-addr.arpa.: domain name does not exist
[0] 147.42.189.18.in-addr.arpa.: domain name does not exist
[60] 148.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-148.dyn.mit.edu
[0] 149.42.189.18.in-addr.arpa.: domain name does not exist
[0] 150.42.189.18.in-addr.arpa.: domain name does not exist
[60] 151.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-151.dyn.mit.edu
[0] 152.42.189.18.in-addr.arpa.: domain name does not exist
[60] 153.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-153.dyn.mit.edu
[60] 154.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-154.dyn.mit.edu
[0] 155.42.189.18.in-addr.arpa.: domain name does not exist
[60] 156.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-156.dyn.mit.edu
[60] 157.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-157.dyn.mit.edu
[0] 158.42.189.18.in-addr.arpa.: domain name does not exist
[0] 159.42.189.18.in-addr.arpa.: domain name does not exist
[60] 160.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-160.dyn.mit.edu
[0] 161.42.189.18.in-addr.arpa.: domain name does not exist
[0] 162.42.189.18.in-addr.arpa.: domain name does not exist
[0] 163.42.189.18.in-addr.arpa.: domain name does not exist
[60] 164.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-164.dyn.mit.edu
[0] 165.42.189.18.in-addr.arpa.: domain name does not exist
[60] 166.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-166.dyn.mit.edu
[60] 167.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-167.dyn.mit.edu
[0] 168.42.189.18.in-addr.arpa.: domain name does not exist
[0] 169.42.189.18.in-addr.arpa.: domain name does not exist
[0] 170.42.189.18.in-addr.arpa.: domain name does not exist
[0] 171.42.189.18.in-addr.arpa.: domain name does not exist
[60] 172.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-172.dyn.mit.edu
[60] 173.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-173.dyn.mit.edu
[60] 174.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-174.dyn.mit.edu
[60] 175.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-175.dyn.mit.edu
[60] 176.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-176.dyn.mit.edu
[60] 177.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-177.dyn.mit.edu
[60] 178.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-178.dyn.mit.edu
[60] 179.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-179.dyn.mit.edu
[60] 180.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-180.dyn.mit.edu
[60] 181.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-181.dyn.mit.edu
[60] 182.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-182.dyn.mit.edu
[60] 183.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-183.dyn.mit.edu
[60] 184.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-184.dyn.mit.edu
[60] 185.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-185.dyn.mit.edu
[60] 186.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-186.dyn.mit.edu
[60] 187.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-187.dyn.mit.edu
[0] 188.42.189.18.in-addr.arpa.: domain name does not exist
[60] 189.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-189.dyn.mit.edu
[60] 190.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-190.dyn.mit.edu
[0] 191.42.189.18.in-addr.arpa.: domain name does not exist
[0] 192.42.189.18.in-addr.arpa.: domain name does not exist
[60] 193.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-193.dyn.mit.edu
[60] 194.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-194.dyn.mit.edu
[0] 195.42.189.18.in-addr.arpa.: domain name does not exist
[0] 196.42.189.18.in-addr.arpa.: domain name does not exist
[0] 197.42.189.18.in-addr.arpa.: domain name does not exist
[60] 198.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-198.dyn.mit.edu
[0] 199.42.189.18.in-addr.arpa.: domain name does not exist
[60] 200.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-200.dyn.mit.edu
[60] 201.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-201.dyn.mit.edu
[0] 202.42.189.18.in-addr.arpa.: domain name does not exist
[60] 203.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-203.dyn.mit.edu
[0] 204.42.189.18.in-addr.arpa.: domain name does not exist
[60] 205.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-205.dyn.mit.edu
[60] 206.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-206.dyn.mit.edu
[60] 207.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-207.dyn.mit.edu
[60] 208.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-208.dyn.mit.edu
[60] 209.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-209.dyn.mit.edu
[60] 210.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-210.dyn.mit.edu
[60] 211.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-211.dyn.mit.edu
[60] 212.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-212.dyn.mit.edu
[60] 213.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-213.dyn.mit.edu
[0] 214.42.189.18.in-addr.arpa.: domain name does not exist
[60] 215.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-215.dyn.mit.edu
[60] 216.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-216.dyn.mit.edu
[0] 217.42.189.18.in-addr.arpa.: domain name does not exist
[0] 218.42.189.18.in-addr.arpa.: domain name does not exist
[0] 219.42.189.18.in-addr.arpa.: domain name does not exist
[60] 220.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-220.dyn.mit.edu
[60] 221.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-221.dyn.mit.edu
[0] 222.42.189.18.in-addr.arpa.: domain name does not exist
[0] 223.42.189.18.in-addr.arpa.: domain name does not exist
[0] 224.42.189.18.in-addr.arpa.: domain name does not exist
[60] 225.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-225.dyn.mit.edu
[60] 226.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-226.dyn.mit.edu
[0] 227.42.189.18.in-addr.arpa.: domain name does not exist
[60] 228.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-228.dyn.mit.edu
[0] 229.42.189.18.in-addr.arpa.: domain name does not exist
[0] 230.42.189.18.in-addr.arpa.: domain name does not exist
[0] 231.42.189.18.in-addr.arpa.: domain name does not exist
[0] 232.42.189.18.in-addr.arpa.: domain name does not exist
[0] 233.42.189.18.in-addr.arpa.: domain name does not exist
[0] 234.42.189.18.in-addr.arpa.: domain name does not exist
[60] 235.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-235.dyn.mit.edu
[0] 236.42.189.18.in-addr.arpa.: domain name does not exist
[0] 237.42.189.18.in-addr.arpa.: domain name does not exist
[0] 238.42.189.18.in-addr.arpa.: domain name does not exist
[60] 239.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-239.dyn.mit.edu
[0] 240.42.189.18.in-addr.arpa.: domain name does not exist
[0] 241.42.189.18.in-addr.arpa.: domain name does not exist
[60] 242.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-242.dyn.mit.edu
[60] 243.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-243.dyn.mit.edu
[0] 244.42.189.18.in-addr.arpa.: domain name does not exist
[60] 245.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-245.dyn.mit.edu
[0] 246.42.189.18.in-addr.arpa.: domain name does not exist
[0] 247.42.189.18.in-addr.arpa.: domain name does not exist
[60] 248.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-248.dyn.mit.edu
[60] 249.42.189.18.in-addr.arpa. domain name pointer dhcp-18-189-42-249.dyn.mit.edu
[0] 250.42.189.18.in-addr.arpa.: domain name does not exist
[0] 251.42.189.18.in-addr.arpa.: domain name does not exist
[0] 252.42.189.18.in-addr.arpa.: domain name does not exist
[0] 253.42.189.18.in-addr.arpa.: domain name does not exist
[0] 254.42.189.18.in-addr.arpa.: domain name does not exist
[0] 255.42.189.18.in-addr.arpa.: domain name does not exist