[0] 0.18.92.159.in-addr.arpa.: domain name does not exist [0] 1.18.92.159.in-addr.arpa.: domain name does not exist [0] 2.18.92.159.in-addr.arpa.: domain name does not exist [0] 3.18.92.159.in-addr.arpa.: domain name does not exist [0] 4.18.92.159.in-addr.arpa.: domain name does not exist [0] 5.18.92.159.in-addr.arpa.: domain name does not exist [86400] 6.18.92.159.in-addr.arpa. domain name pointer clears-1.umds.ac.uk [0] 7.18.92.159.in-addr.arpa.: domain name does not exist [86400] 8.18.92.159.in-addr.arpa. domain name pointer pc018-008.tch.umds.ac.uk [86400] 9.18.92.159.in-addr.arpa. domain name pointer pc018-009.tch.umds.ac.uk [86400] 10.18.92.159.in-addr.arpa. domain name pointer pc018-010.tch.umds.ac.uk [0] 11.18.92.159.in-addr.arpa.: domain name does not exist [86400] 12.18.92.159.in-addr.arpa. domain name pointer pc018-012.tch.umds.ac.uk [0] 13.18.92.159.in-addr.arpa.: domain name does not exist [0] 14.18.92.159.in-addr.arpa.: domain name does not exist [86400] 15.18.92.159.in-addr.arpa. domain name pointer pc018-015.tch.umds.ac.uk [0] 16.18.92.159.in-addr.arpa.: domain name does not exist [86400] 17.18.92.159.in-addr.arpa. domain name pointer pc018-017.tch.umds.ac.uk [86400] 18.18.92.159.in-addr.arpa. domain name pointer pc018-018.tch.umds.ac.uk [0] 19.18.92.159.in-addr.arpa.: domain name does not exist [86400] 20.18.92.159.in-addr.arpa. domain name pointer pc018-020.tch.umds.ac.uk gktsbsserv2.biomed.umds.ac.uk [86400] 21.18.92.159.in-addr.arpa. domain name pointer pc018-021.tch.umds.ac.uk [86400] 22.18.92.159.in-addr.arpa. domain name pointer pc018-022.tch.umds.ac.uk [86400] 23.18.92.159.in-addr.arpa. domain name pointer pc018-023.tch.umds.ac.uk [86400] 24.18.92.159.in-addr.arpa. domain name pointer pc018-024.tch.umds.ac.uk [86400] 25.18.92.159.in-addr.arpa. domain name pointer pc018-025.tch.umds.ac.uk [0] 26.18.92.159.in-addr.arpa.: domain name does not exist [86400] 27.18.92.159.in-addr.arpa. domain name pointer pc018-027.tch.umds.ac.uk [86400] 28.18.92.159.in-addr.arpa. domain name pointer pc018-028.tch.umds.ac.uk [86400] 29.18.92.159.in-addr.arpa. domain name pointer pc018-029.tch.umds.ac.uk [86400] 30.18.92.159.in-addr.arpa. domain name pointer tempus.umds.ac.uk pc018-030.tch.umds.ac.uk [86400] 31.18.92.159.in-addr.arpa. domain name pointer pc018-031.tch.umds.ac.uk psy-cal1.umds.ac.uk [86400] 32.18.92.159.in-addr.arpa. domain name pointer pc018-032.tch.umds.ac.uk psy-cal2.umds.ac.uk [86400] 33.18.92.159.in-addr.arpa. domain name pointer pc018-033.tch.umds.ac.uk psy-cal3.umds.ac.uk [86400] 34.18.92.159.in-addr.arpa. domain name pointer psy-cal4.umds.ac.uk pc018-034.tch.umds.ac.uk [86400] 35.18.92.159.in-addr.arpa. domain name pointer pc018-035.tch.umds.ac.uk [86400] 36.18.92.159.in-addr.arpa. domain name pointer pc018-036.tch.umds.ac.uk [86400] 37.18.92.159.in-addr.arpa. domain name pointer psy-cal7.umds.ac.uk pc018-037.tch.umds.ac.uk [86400] 38.18.92.159.in-addr.arpa. domain name pointer pc018-038.tch.umds.ac.uk psy-cal8.umds.ac.uk [0] 39.18.92.159.in-addr.arpa.: domain name does not exist [0] 40.18.92.159.in-addr.arpa.: domain name does not exist [86400] 41.18.92.159.in-addr.arpa. domain name pointer pc018-041.tch.umds.ac.uk [86400] 42.18.92.159.in-addr.arpa. domain name pointer pc018-042.tch.umds.ac.uk [86400] 43.18.92.159.in-addr.arpa. domain name pointer pc018-043.tch.umds.ac.uk [86400] 44.18.92.159.in-addr.arpa. domain name pointer pc018-044.tch.umds.ac.uk [86400] 45.18.92.159.in-addr.arpa. domain name pointer pc018-045.tch.umds.ac.uk [86400] 46.18.92.159.in-addr.arpa. domain name pointer pc018-046.tch.umds.ac.uk [86400] 47.18.92.159.in-addr.arpa. domain name pointer pc018-047.tch.umds.ac.uk [86400] 48.18.92.159.in-addr.arpa. domain name pointer pc018-048.tch.umds.ac.uk [86400] 49.18.92.159.in-addr.arpa. domain name pointer pc018-049.tch.umds.ac.uk [0] 50.18.92.159.in-addr.arpa.: domain name does not exist [0] 51.18.92.159.in-addr.arpa.: domain name does not exist [0] 52.18.92.159.in-addr.arpa.: domain name does not exist [0] 53.18.92.159.in-addr.arpa.: domain name does not exist [0] 54.18.92.159.in-addr.arpa.: domain name does not exist [86400] 55.18.92.159.in-addr.arpa. domain name pointer pc018-055.tch.umds.ac.uk [86400] 56.18.92.159.in-addr.arpa. domain name pointer pc018-056.tch.umds.ac.uk [86400] 57.18.92.159.in-addr.arpa. domain name pointer pc018-057.tch.umds.ac.uk [86400] 58.18.92.159.in-addr.arpa. domain name pointer pc018-058.tch.umds.ac.uk [86400] 59.18.92.159.in-addr.arpa. domain name pointer pc018-059.tch.umds.ac.uk [86400] 60.18.92.159.in-addr.arpa. domain name pointer pc018-060.tch.umds.ac.uk [86400] 61.18.92.159.in-addr.arpa. domain name pointer pc018-061.tch.umds.ac.uk [86400] 62.18.92.159.in-addr.arpa. domain name pointer pc018-062.tch.umds.ac.uk [86400] 63.18.92.159.in-addr.arpa. domain name pointer pc018-063.tch.umds.ac.uk [0] 64.18.92.159.in-addr.arpa.: domain name does not exist [86400] 65.18.92.159.in-addr.arpa. domain name pointer pc018-065.tch.umds.ac.uk [86400] 66.18.92.159.in-addr.arpa. domain name pointer pc018-066.tch.umds.ac.uk [86400] 67.18.92.159.in-addr.arpa. domain name pointer pc018-067.tch.umds.ac.uk [86400] 68.18.92.159.in-addr.arpa. domain name pointer pc018-068.tch.umds.ac.uk [86400] 69.18.92.159.in-addr.arpa. domain name pointer pc018-069.tch.umds.ac.uk [0] 70.18.92.159.in-addr.arpa.: domain name does not exist [0] 71.18.92.159.in-addr.arpa.: domain name does not exist [86400] 72.18.92.159.in-addr.arpa. domain name pointer pc018-072.tch.umds.ac.uk [86400] 73.18.92.159.in-addr.arpa. domain name pointer pc018-073.tch.umds.ac.uk [86400] 74.18.92.159.in-addr.arpa. domain name pointer pc018-074.tch.umds.ac.uk [86400] 75.18.92.159.in-addr.arpa. domain name pointer pc018-075.tch.umds.ac.uk [86400] 76.18.92.159.in-addr.arpa. domain name pointer pc018-076.tch.umds.ac.uk [86400] 77.18.92.159.in-addr.arpa. domain name pointer pc018-077.tch.umds.ac.uk [86400] 78.18.92.159.in-addr.arpa. domain name pointer pc018-078.tch.umds.ac.uk [86400] 79.18.92.159.in-addr.arpa. domain name pointer pc018-079.tch.umds.ac.uk [86400] 80.18.92.159.in-addr.arpa. domain name pointer pc018-080.tch.umds.ac.uk [0] 81.18.92.159.in-addr.arpa.: domain name does not exist [86400] 82.18.92.159.in-addr.arpa. domain name pointer pc018-082.tch.umds.ac.uk [86400] 83.18.92.159.in-addr.arpa. domain name pointer pc018-083.tch.umds.ac.uk [86400] 84.18.92.159.in-addr.arpa. domain name pointer pc018-084.tch.umds.ac.uk [86400] 85.18.92.159.in-addr.arpa. domain name pointer pc018-085.tch.umds.ac.uk [86400] 86.18.92.159.in-addr.arpa. domain name pointer pc018-086.tch.umds.ac.uk [86400] 87.18.92.159.in-addr.arpa. domain name pointer pc018-087.tch.umds.ac.uk [86400] 88.18.92.159.in-addr.arpa. domain name pointer pc018-088.tch.umds.ac.uk [86400] 89.18.92.159.in-addr.arpa. domain name pointer pc018-089.tch.umds.ac.uk [0] 90.18.92.159.in-addr.arpa.: domain name does not exist [86400] 91.18.92.159.in-addr.arpa. domain name pointer pc018-091.tch.umds.ac.uk [86400] 92.18.92.159.in-addr.arpa. domain name pointer pc018-092.tch.umds.ac.uk [0] 93.18.92.159.in-addr.arpa.: domain name does not exist [86400] 94.18.92.159.in-addr.arpa. domain name pointer pc018-094.tch.umds.ac.uk [86400] 95.18.92.159.in-addr.arpa. domain name pointer pc018-095.tch.umds.ac.uk [86400] 96.18.92.159.in-addr.arpa. domain name pointer pc018-096.tch.umds.ac.uk [86400] 97.18.92.159.in-addr.arpa. domain name pointer pc018-097.tch.umds.ac.uk recp-hrh-3.umds.ac.uk [86400] 98.18.92.159.in-addr.arpa. domain name pointer pc018-098.tch.umds.ac.uk [86400] 99.18.92.159.in-addr.arpa. domain name pointer pc018-099.tch.umds.ac.uk [86400] 100.18.92.159.in-addr.arpa. domain name pointer msc-study-1.umds.ac.uk [28800] 101.18.92.159.in-addr.arpa. domain name pointer kcl5p600d2.client.kcl.ac.uk [0] 102.18.92.159.in-addr.arpa.: domain name does not exist [0] 103.18.92.159.in-addr.arpa.: domain name does not exist [86400] 104.18.92.159.in-addr.arpa. domain name pointer msc-study-5.umds.ac.uk [86400] 105.18.92.159.in-addr.arpa. domain name pointer msc-study-6.umds.ac.uk [0] 106.18.92.159.in-addr.arpa.: domain name does not exist [86400] 107.18.92.159.in-addr.arpa. domain name pointer msc-study-8.umds.ac.uk [0] 108.18.92.159.in-addr.arpa.: domain name does not exist [86400] 109.18.92.159.in-addr.arpa. domain name pointer pc018-109.tch.umds.ac.uk [0] 110.18.92.159.in-addr.arpa.: domain name does not exist [0] 111.18.92.159.in-addr.arpa.: domain name does not exist [0] 112.18.92.159.in-addr.arpa.: domain name does not exist [0] 113.18.92.159.in-addr.arpa.: domain name does not exist [0] 114.18.92.159.in-addr.arpa.: domain name does not exist [0] 115.18.92.159.in-addr.arpa.: domain name does not exist [0] 116.18.92.159.in-addr.arpa.: domain name does not exist [0] 117.18.92.159.in-addr.arpa.: domain name does not exist [86400] 118.18.92.159.in-addr.arpa. domain name pointer pc018-118.tch.umds.ac.uk [0] 119.18.92.159.in-addr.arpa.: domain name does not exist [86400] 120.18.92.159.in-addr.arpa. domain name pointer pc018-120.tch.umds.ac.uk [86400] 121.18.92.159.in-addr.arpa. domain name pointer pc018-121.tch.umds.ac.uk physio-22.umds.ac.uk [86400] 122.18.92.159.in-addr.arpa. domain name pointer pc018-122.tch.umds.ac.uk [86400] 123.18.92.159.in-addr.arpa. domain name pointer pc018-123.tch.umds.ac.uk [86400] 124.18.92.159.in-addr.arpa. domain name pointer pc018-124.tch.umds.ac.uk [86400] 125.18.92.159.in-addr.arpa. domain name pointer pc018-125.tch.umds.ac.uk [86400] 126.18.92.159.in-addr.arpa. domain name pointer pc018-126.tch.umds.ac.uk [86400] 127.18.92.159.in-addr.arpa. domain name pointer pc018-127.tch.umds.ac.uk [86400] 128.18.92.159.in-addr.arpa. domain name pointer pc018-128.tch.umds.ac.uk [86400] 129.18.92.159.in-addr.arpa. domain name pointer pc018-129.tch.umds.ac.uk [86400] 130.18.92.159.in-addr.arpa. domain name pointer pc018-130.tch.umds.ac.uk [86400] 131.18.92.159.in-addr.arpa. domain name pointer pc018-131.tch.umds.ac.uk [86400] 132.18.92.159.in-addr.arpa. domain name pointer pc018-132.tch.umds.ac.uk [86400] 133.18.92.159.in-addr.arpa. domain name pointer pc018-133.tch.umds.ac.uk [86400] 134.18.92.159.in-addr.arpa. domain name pointer pc018-134.tch.umds.ac.uk [86400] 135.18.92.159.in-addr.arpa. domain name pointer pc018-135.tch.umds.ac.uk [86400] 136.18.92.159.in-addr.arpa. domain name pointer pc018-136.tch.umds.ac.uk [86400] 137.18.92.159.in-addr.arpa. domain name pointer pc018-137.tch.umds.ac.uk [86400] 138.18.92.159.in-addr.arpa. domain name pointer pc018-138.tch.umds.ac.uk [86400] 139.18.92.159.in-addr.arpa. domain name pointer pc018-139.tch.umds.ac.uk [86400] 140.18.92.159.in-addr.arpa. domain name pointer pc018-140.tch.umds.ac.uk [86400] 141.18.92.159.in-addr.arpa. domain name pointer pc018-141.tch.umds.ac.uk [86400] 142.18.92.159.in-addr.arpa. domain name pointer pc018-142.tch.umds.ac.uk [86400] 143.18.92.159.in-addr.arpa. domain name pointer pc018-143.tch.umds.ac.uk [86400] 144.18.92.159.in-addr.arpa. domain name pointer pc018-144.tch.umds.ac.uk [0] 145.18.92.159.in-addr.arpa.: domain name does not exist [86400] 146.18.92.159.in-addr.arpa. domain name pointer pc018-146.tch.umds.ac.uk [0] 147.18.92.159.in-addr.arpa.: domain name does not exist [900] 148.18.92.159.in-addr.arpa. domain name pointer kcl-file01.kcl.ac.uk pc018-148.tch.umds.ac.uk [86400] 149.18.92.159.in-addr.arpa. domain name pointer pc018-149.tch.umds.ac.uk [0] 150.18.92.159.in-addr.arpa.: domain name does not exist [86400] 151.18.92.159.in-addr.arpa. domain name pointer biomed-25.umds.ac.uk [0] 152.18.92.159.in-addr.arpa.: domain name does not exist [86400] 153.18.92.159.in-addr.arpa. domain name pointer biomed-27.umds.ac.uk [86400] 154.18.92.159.in-addr.arpa. domain name pointer biomed-28.umds.ac.uk [28800] 155.18.92.159.in-addr.arpa. domain name pointer hsads01.biohealth.kcl.ac.uk biomed-29.umds.ac.uk [86400] 156.18.92.159.in-addr.arpa. domain name pointer biomed-24.umds.ac.uk [86400] 157.18.92.159.in-addr.arpa. domain name pointer biomed-21.umds.ac.uk [86400] 158.18.92.159.in-addr.arpa. domain name pointer biomed-22.umds.ac.uk [86400] 159.18.92.159.in-addr.arpa. domain name pointer biomed-23.umds.ac.uk [86400] 160.18.92.159.in-addr.arpa. domain name pointer biomed-1.umds.ac.uk [86400] 161.18.92.159.in-addr.arpa. domain name pointer biomed-2.umds.ac.uk [28800] 162.18.92.159.in-addr.arpa. domain name pointer kcl5pc00d2.client.kcl.ac.uk [0] 163.18.92.159.in-addr.arpa.: domain name does not exist [86400] 164.18.92.159.in-addr.arpa. domain name pointer biomed-5.umds.ac.uk [86400] 165.18.92.159.in-addr.arpa. domain name pointer biomed-6.umds.ac.uk [86400] 166.18.92.159.in-addr.arpa. domain name pointer biomed-7.umds.ac.uk [86400] 167.18.92.159.in-addr.arpa. domain name pointer biomed-8.umds.ac.uk [86400] 168.18.92.159.in-addr.arpa. domain name pointer biomed-9.umds.ac.uk [86400] 169.18.92.159.in-addr.arpa. domain name pointer biomed-10.umds.ac.uk [0] 170.18.92.159.in-addr.arpa.: domain name does not exist [86400] 171.18.92.159.in-addr.arpa. domain name pointer biomed-12.umds.ac.uk [86400] 172.18.92.159.in-addr.arpa. domain name pointer biomed-13.umds.ac.uk [86400] 173.18.92.159.in-addr.arpa. domain name pointer biomed-14.umds.ac.uk [0] 174.18.92.159.in-addr.arpa.: domain name does not exist [86400] 175.18.92.159.in-addr.arpa. domain name pointer biomed-16.umds.ac.uk [86400] 176.18.92.159.in-addr.arpa. domain name pointer biomed-17.umds.ac.uk [86400] 177.18.92.159.in-addr.arpa. domain name pointer biomed-18.umds.ac.uk [86400] 178.18.92.159.in-addr.arpa. domain name pointer biomed-19.umds.ac.uk [0] 179.18.92.159.in-addr.arpa.: domain name does not exist [86400] 180.18.92.159.in-addr.arpa. domain name pointer edu-1.umds.ac.uk [86400] 181.18.92.159.in-addr.arpa. domain name pointer edu-2.umds.ac.uk [86400] 182.18.92.159.in-addr.arpa. domain name pointer edu-5.umds.ac.uk [0] 183.18.92.159.in-addr.arpa.: domain name does not exist [86400] 184.18.92.159.in-addr.arpa. domain name pointer edu-7.umds.ac.uk [86400] 185.18.92.159.in-addr.arpa. domain name pointer pc018-185.tch.umds.ac.uk [86400] 186.18.92.159.in-addr.arpa. domain name pointer pc018-186.tch.umds.ac.uk [0] 187.18.92.159.in-addr.arpa.: domain name does not exist [0] 188.18.92.159.in-addr.arpa.: domain name does not exist [0] 189.18.92.159.in-addr.arpa.: domain name does not exist [86400] 190.18.92.159.in-addr.arpa. domain name pointer bchem-19.umds.ac.uk [86400] 191.18.92.159.in-addr.arpa. domain name pointer bchem-16.umds.ac.uk [0] 192.18.92.159.in-addr.arpa.: domain name does not exist [86400] 193.18.92.159.in-addr.arpa. domain name pointer bchem-54.umds.ac.uk [28800] 194.18.92.159.in-addr.arpa. domain name pointer bchem-55.umds.ac.uk tulip.biomed.kcl.ac.uk [86400] 195.18.92.159.in-addr.arpa. domain name pointer bchem-56.umds.ac.uk [0] 196.18.92.159.in-addr.arpa.: domain name does not exist [86400] 197.18.92.159.in-addr.arpa. domain name pointer bchem-58.umds.ac.uk [86400] 198.18.92.159.in-addr.arpa. domain name pointer bchem-59.umds.ac.uk [86400] 199.18.92.159.in-addr.arpa. domain name pointer bchem-60.umds.ac.uk [86400] 200.18.92.159.in-addr.arpa. domain name pointer bchem-61.umds.ac.uk [0] 201.18.92.159.in-addr.arpa.: domain name does not exist [0] 202.18.92.159.in-addr.arpa.: domain name does not exist [86400] 203.18.92.159.in-addr.arpa. domain name pointer bchem-64.umds.ac.uk [0] 204.18.92.159.in-addr.arpa.: domain name does not exist [0] 205.18.92.159.in-addr.arpa.: domain name does not exist [86400] 206.18.92.159.in-addr.arpa. domain name pointer bchem-67.umds.ac.uk [86400] 207.18.92.159.in-addr.arpa. domain name pointer testing.umds.ac.uk [0] 208.18.92.159.in-addr.arpa.: domain name does not exist [0] 209.18.92.159.in-addr.arpa.: domain name does not exist [86400] 210.18.92.159.in-addr.arpa. domain name pointer pharm-30.umds.ac.uk [86400] 211.18.92.159.in-addr.arpa. domain name pointer pharm-31.umds.ac.uk [86400] 212.18.92.159.in-addr.arpa. domain name pointer pharm-32.umds.ac.uk [0] 213.18.92.159.in-addr.arpa.: domain name does not exist [0] 214.18.92.159.in-addr.arpa.: domain name does not exist [0] 215.18.92.159.in-addr.arpa.: domain name does not exist [0] 216.18.92.159.in-addr.arpa.: domain name does not exist [0] 217.18.92.159.in-addr.arpa.: domain name does not exist [0] 218.18.92.159.in-addr.arpa.: domain name does not exist [0] 219.18.92.159.in-addr.arpa.: domain name does not exist [86400] 220.18.92.159.in-addr.arpa. domain name pointer biomed-30.umds.ac.uk [86400] 221.18.92.159.in-addr.arpa. domain name pointer biomed-31.umds.ac.uk [86400] 222.18.92.159.in-addr.arpa. domain name pointer biomed-32.umds.ac.uk [86400] 223.18.92.159.in-addr.arpa. domain name pointer biomed-33.umds.ac.uk [86400] 224.18.92.159.in-addr.arpa. domain name pointer biomed-34.umds.ac.uk [86400] 225.18.92.159.in-addr.arpa. domain name pointer biomed-35.umds.ac.uk [86400] 226.18.92.159.in-addr.arpa. domain name pointer biomed-36.umds.ac.uk [0] 227.18.92.159.in-addr.arpa.: domain name does not exist [86400] 228.18.92.159.in-addr.arpa. domain name pointer biomed-38.umds.ac.uk [86400] 229.18.92.159.in-addr.arpa. domain name pointer human-phys-12.umds.ac.uk [86400] 230.18.92.159.in-addr.arpa. domain name pointer pharm-34.umds.ac.uk [86400] 231.18.92.159.in-addr.arpa. domain name pointer biomed-39.umds.ac.uk [86400] 232.18.92.159.in-addr.arpa. domain name pointer biomed-40.umds.ac.uk [86400] 233.18.92.159.in-addr.arpa. domain name pointer gkttest1.umds.ac.uk [86400] 234.18.92.159.in-addr.arpa. domain name pointer gkttest2.umds.ac.uk [86400] 235.18.92.159.in-addr.arpa. domain name pointer gkttest3.umds.ac.uk [0] 236.18.92.159.in-addr.arpa.: domain name does not exist [86400] 237.18.92.159.in-addr.arpa. domain name pointer edu-8.umds.ac.uk [86400] 238.18.92.159.in-addr.arpa. domain name pointer edu-9.umds.ac.uk [86400] 239.18.92.159.in-addr.arpa. domain name pointer pharm-38.umds.ac.uk [86400] 240.18.92.159.in-addr.arpa. domain name pointer physio-25.umds.ac.uk [0] 241.18.92.159.in-addr.arpa.: domain name does not exist [86400] 242.18.92.159.in-addr.arpa. domain name pointer physio-27.umds.ac.uk [86400] 243.18.92.159.in-addr.arpa. domain name pointer eagles-m1.umds.ac.uk [86400] 244.18.92.159.in-addr.arpa. domain name pointer physio-28.umds.ac.uk [86400] 245.18.92.159.in-addr.arpa. domain name pointer biomed-41.umds.ac.uk [86400] 246.18.92.159.in-addr.arpa. domain name pointer biomed-42.umds.ac.uk [0] 247.18.92.159.in-addr.arpa.: domain name does not exist [0] 248.18.92.159.in-addr.arpa.: domain name does not exist [86400] 249.18.92.159.in-addr.arpa. domain name pointer bchem-69.umds.ac.uk [86400] 250.18.92.159.in-addr.arpa. domain name pointer bchem-70.umds.ac.uk [86400] 251.18.92.159.in-addr.arpa. domain name pointer physio-30.umds.ac.uk [86400] 252.18.92.159.in-addr.arpa. domain name pointer gktvc.umds.ac.uk [86400] 253.18.92.159.in-addr.arpa. domain name pointer gktvc1.umds.ac.uk [0] 254.18.92.159.in-addr.arpa.: domain name does not exist [0] 255.18.92.159.in-addr.arpa.: domain name does not exist