[86400] 0.144.3.152.in-addr.arpa. domain name pointer duke-cs-11.duke.edu
[86400] 1.144.3.152.in-addr.arpa. domain name pointer arch01.cs.duke.edu
[86400] 2.144.3.152.in-addr.arpa. domain name pointer arch02.cs.duke.edu
[86400] 3.144.3.152.in-addr.arpa. domain name pointer arch03.cs.duke.edu
[86400] 4.144.3.152.in-addr.arpa. domain name pointer arch04.cs.duke.edu
[86400] 5.144.3.152.in-addr.arpa. domain name pointer arch05.cs.duke.edu
[86400] 6.144.3.152.in-addr.arpa. domain name pointer arch06.cs.duke.edu
[86400] 7.144.3.152.in-addr.arpa. domain name pointer arch07.cs.duke.edu
[86400] 8.144.3.152.in-addr.arpa. domain name pointer arch08.cs.duke.edu
[86400] 9.144.3.152.in-addr.arpa. domain name pointer arch09.cs.duke.edu
[86400] 10.144.3.152.in-addr.arpa. domain name pointer arch10.cs.duke.edu
[86400] 11.144.3.152.in-addr.arpa. domain name pointer arch11.cs.duke.edu
[86400] 12.144.3.152.in-addr.arpa. domain name pointer arch12.cs.duke.edu
[86400] 13.144.3.152.in-addr.arpa. domain name pointer arch13.cs.duke.edu
[86400] 14.144.3.152.in-addr.arpa. domain name pointer arch14.cs.duke.edu
[86400] 15.144.3.152.in-addr.arpa. domain name pointer arch15.cs.duke.edu
[86400] 16.144.3.152.in-addr.arpa. domain name pointer arch16.cs.duke.edu
[86400] 17.144.3.152.in-addr.arpa. domain name pointer arch17.cs.duke.edu
[86400] 18.144.3.152.in-addr.arpa. domain name pointer arch18.cs.duke.edu
[86400] 19.144.3.152.in-addr.arpa. domain name pointer arch19.cs.duke.edu
[86400] 20.144.3.152.in-addr.arpa. domain name pointer arch20.cs.duke.edu
[86400] 21.144.3.152.in-addr.arpa. domain name pointer arch21.cs.duke.edu
[86400] 22.144.3.152.in-addr.arpa. domain name pointer arch22.cs.duke.edu
[86400] 23.144.3.152.in-addr.arpa. domain name pointer arch23.cs.duke.edu
[86400] 24.144.3.152.in-addr.arpa. domain name pointer sniff.cs.duke.edu
[86400] 25.144.3.152.in-addr.arpa. domain name pointer arch25.cs.duke.edu
[86400] 26.144.3.152.in-addr.arpa. domain name pointer arch26.cs.duke.edu
[86400] 27.144.3.152.in-addr.arpa. domain name pointer arch27.cs.duke.edu
[86400] 28.144.3.152.in-addr.arpa. domain name pointer arch28.cs.duke.edu
[86400] 29.144.3.152.in-addr.arpa. domain name pointer arch29.cs.duke.edu
[86400] 30.144.3.152.in-addr.arpa. domain name pointer arch30.cs.duke.edu
[86400] 31.144.3.152.in-addr.arpa. domain name pointer arch31.cs.duke.edu
[86400] 32.144.3.152.in-addr.arpa. domain name pointer arch32.cs.duke.edu
[86400] 33.144.3.152.in-addr.arpa. domain name pointer arch33.cs.duke.edu
[86400] 34.144.3.152.in-addr.arpa. domain name pointer arch34.cs.duke.edu
[86400] 35.144.3.152.in-addr.arpa. domain name pointer arch35.cs.duke.edu
[86400] 36.144.3.152.in-addr.arpa. domain name pointer arch36.cs.duke.edu
[86400] 37.144.3.152.in-addr.arpa. domain name pointer arch37.cs.duke.edu
[86400] 38.144.3.152.in-addr.arpa. domain name pointer arch38.cs.duke.edu
[86400] 39.144.3.152.in-addr.arpa. domain name pointer arch39.cs.duke.edu
[86400] 40.144.3.152.in-addr.arpa. domain name pointer arch40.cs.duke.edu
[86400] 41.144.3.152.in-addr.arpa. domain name pointer arch41.cs.duke.edu
[86400] 42.144.3.152.in-addr.arpa. domain name pointer arch42.cs.duke.edu
[86400] 43.144.3.152.in-addr.arpa. domain name pointer arch43.cs.duke.edu
[86400] 44.144.3.152.in-addr.arpa. domain name pointer arch44.cs.duke.edu
[86400] 45.144.3.152.in-addr.arpa. domain name pointer bach.cs.duke.edu
[86400] 46.144.3.152.in-addr.arpa. domain name pointer beethoven.cs.duke.edu
[86400] 47.144.3.152.in-addr.arpa. domain name pointer chopin.cs.duke.edu
[86400] 48.144.3.152.in-addr.arpa. domain name pointer handel.cs.duke.edu
[86400] 49.144.3.152.in-addr.arpa. domain name pointer verdi.cs.duke.edu
[86400] 50.144.3.152.in-addr.arpa. domain name pointer vivaldi.cs.duke.edu
[86400] 51.144.3.152.in-addr.arpa. domain name pointer cise00.cs.duke.edu
[86400] 52.144.3.152.in-addr.arpa. domain name pointer cise01.cs.duke.edu
[86400] 53.144.3.152.in-addr.arpa. domain name pointer cise02.cs.duke.edu
[86400] 54.144.3.152.in-addr.arpa. domain name pointer cise03.cs.duke.edu
[86400] 55.144.3.152.in-addr.arpa. domain name pointer cise04.cs.duke.edu
[86400] 56.144.3.152.in-addr.arpa. domain name pointer cise05.cs.duke.edu
[86400] 57.144.3.152.in-addr.arpa. domain name pointer cise06.cs.duke.edu
[86400] 58.144.3.152.in-addr.arpa. domain name pointer cise07.cs.duke.edu
[86400] 59.144.3.152.in-addr.arpa. domain name pointer cise08.cs.duke.edu
[86400] 60.144.3.152.in-addr.arpa. domain name pointer cise09.cs.duke.edu
[86400] 61.144.3.152.in-addr.arpa. domain name pointer csrouter-144.cs.duke.edu
[86400] 62.144.3.152.in-addr.arpa. domain name pointer cise11.cs.duke.edu
[86400] 63.144.3.152.in-addr.arpa. domain name pointer cise12.cs.duke.edu
[86400] 64.144.3.152.in-addr.arpa. domain name pointer cise13.cs.duke.edu
[86400] 65.144.3.152.in-addr.arpa. domain name pointer cise14.cs.duke.edu
[86400] 66.144.3.152.in-addr.arpa. domain name pointer cise15.cs.duke.edu
[86400] 67.144.3.152.in-addr.arpa. domain name pointer bladebox00.cs.duke.edu
[86400] 68.144.3.152.in-addr.arpa. domain name pointer bladebox01.cs.duke.edu
[86400] 69.144.3.152.in-addr.arpa. domain name pointer bladebox02.cs.duke.edu
[86400] 70.144.3.152.in-addr.arpa. domain name pointer arch70.cs.duke.edu
[86400] 71.144.3.152.in-addr.arpa. domain name pointer arch71.cs.duke.edu
[86400] 72.144.3.152.in-addr.arpa. domain name pointer arch72.cs.duke.edu
[86400] 73.144.3.152.in-addr.arpa. domain name pointer arch73.cs.duke.edu
[86400] 74.144.3.152.in-addr.arpa. domain name pointer arch74.cs.duke.edu
[86400] 75.144.3.152.in-addr.arpa. domain name pointer arch75.cs.duke.edu
[86400] 76.144.3.152.in-addr.arpa. domain name pointer arch76.cs.duke.edu
[86400] 77.144.3.152.in-addr.arpa. domain name pointer arch77.cs.duke.edu
[86400] 78.144.3.152.in-addr.arpa. domain name pointer arch78.cs.duke.edu
[86400] 79.144.3.152.in-addr.arpa. domain name pointer arch79.cs.duke.edu
[86400] 80.144.3.152.in-addr.arpa. domain name pointer arch80.cs.duke.edu
[86400] 81.144.3.152.in-addr.arpa. domain name pointer arch81.cs.duke.edu
[86400] 82.144.3.152.in-addr.arpa. domain name pointer arch82.cs.duke.edu
[86400] 83.144.3.152.in-addr.arpa. domain name pointer arch83.cs.duke.edu
[86400] 84.144.3.152.in-addr.arpa. domain name pointer arch84.cs.duke.edu
[86400] 85.144.3.152.in-addr.arpa. domain name pointer arch85.cs.duke.edu
[86400] 86.144.3.152.in-addr.arpa. domain name pointer arch86.cs.duke.edu
[86400] 87.144.3.152.in-addr.arpa. domain name pointer arch87.cs.duke.edu
[86400] 88.144.3.152.in-addr.arpa. domain name pointer arch88.cs.duke.edu
[86400] 89.144.3.152.in-addr.arpa. domain name pointer arch89.cs.duke.edu
[86400] 90.144.3.152.in-addr.arpa. domain name pointer rack272.cs.duke.edu
[86400] 91.144.3.152.in-addr.arpa. domain name pointer rack273.cs.duke.edu
[86400] 92.144.3.152.in-addr.arpa. domain name pointer rack274.cs.duke.edu
[86400] 93.144.3.152.in-addr.arpa. domain name pointer rack275.cs.duke.edu
[86400] 94.144.3.152.in-addr.arpa. domain name pointer rack276.cs.duke.edu
[86400] 95.144.3.152.in-addr.arpa. domain name pointer cise10.cs.duke.edu
[0] 96.144.3.152.in-addr.arpa.: domain name does not exist
[0] 97.144.3.152.in-addr.arpa.: domain name does not exist
[0] 98.144.3.152.in-addr.arpa.: domain name does not exist
[0] 99.144.3.152.in-addr.arpa.: domain name does not exist
[86400] 100.144.3.152.in-addr.arpa. domain name pointer tuxswitch.cs.duke.edu
[86400] 101.144.3.152.in-addr.arpa. domain name pointer tux1.cs.duke.edu
[86400] 102.144.3.152.in-addr.arpa. domain name pointer tux2.cs.duke.edu
[86400] 103.144.3.152.in-addr.arpa. domain name pointer tux3.cs.duke.edu
[86400] 104.144.3.152.in-addr.arpa. domain name pointer tux4.cs.duke.edu
[86400] 105.144.3.152.in-addr.arpa. domain name pointer tux5.cs.duke.edu
[86400] 106.144.3.152.in-addr.arpa. domain name pointer tux6.cs.duke.edu
[86400] 107.144.3.152.in-addr.arpa. domain name pointer tux7.cs.duke.edu
[86400] 108.144.3.152.in-addr.arpa. domain name pointer tux8.cs.duke.edu
[86400] 109.144.3.152.in-addr.arpa. domain name pointer tux9.cs.duke.edu
[86400] 110.144.3.152.in-addr.arpa. domain name pointer tux10.cs.duke.edu
[86400] 111.144.3.152.in-addr.arpa. domain name pointer tux11.cs.duke.edu
[86400] 112.144.3.152.in-addr.arpa. domain name pointer tux12.cs.duke.edu
[86400] 113.144.3.152.in-addr.arpa. domain name pointer tux13.cs.duke.edu
[86400] 114.144.3.152.in-addr.arpa. domain name pointer tux14.cs.duke.edu
[86400] 115.144.3.152.in-addr.arpa. domain name pointer tux15.cs.duke.edu
[86400] 116.144.3.152.in-addr.arpa. domain name pointer tux16.cs.duke.edu
[86400] 117.144.3.152.in-addr.arpa. domain name pointer tux17.cs.duke.edu
[86400] 118.144.3.152.in-addr.arpa. domain name pointer tux18.cs.duke.edu
[86400] 119.144.3.152.in-addr.arpa. domain name pointer tux19.cs.duke.edu
[86400] 120.144.3.152.in-addr.arpa. domain name pointer tux20.cs.duke.edu
[86400] 121.144.3.152.in-addr.arpa. domain name pointer tux21.cs.duke.edu
[86400] 122.144.3.152.in-addr.arpa. domain name pointer tux22.cs.duke.edu
[86400] 123.144.3.152.in-addr.arpa. domain name pointer tux23.cs.duke.edu
[86400] 124.144.3.152.in-addr.arpa. domain name pointer tux24.cs.duke.edu
[86400] 125.144.3.152.in-addr.arpa. domain name pointer tux25.cs.duke.edu
[0] 126.144.3.152.in-addr.arpa.: domain name does not exist
[0] 127.144.3.152.in-addr.arpa.: domain name does not exist
[0] 128.144.3.152.in-addr.arpa.: domain name does not exist
[0] 129.144.3.152.in-addr.arpa.: domain name does not exist
[0] 130.144.3.152.in-addr.arpa.: domain name does not exist
[0] 131.144.3.152.in-addr.arpa.: domain name does not exist
[0] 132.144.3.152.in-addr.arpa.: domain name does not exist
[0] 133.144.3.152.in-addr.arpa.: domain name does not exist
[0] 134.144.3.152.in-addr.arpa.: domain name does not exist
[0] 135.144.3.152.in-addr.arpa.: domain name does not exist
[86400] 136.144.3.152.in-addr.arpa. domain name pointer brahms.cs.duke.edu
[86400] 137.144.3.152.in-addr.arpa. domain name pointer mozart.cs.duke.edu
[86400] 138.144.3.152.in-addr.arpa. domain name pointer rack155.cs.duke.edu
[86400] 139.144.3.152.in-addr.arpa. domain name pointer rack156.cs.duke.edu
[86400] 140.144.3.152.in-addr.arpa. domain name pointer rack157.cs.duke.edu
[86400] 141.144.3.152.in-addr.arpa. domain name pointer rack158.cs.duke.edu
[86400] 142.144.3.152.in-addr.arpa. domain name pointer rack159.cs.duke.edu
[86400] 143.144.3.152.in-addr.arpa. domain name pointer rack160.cs.duke.edu
[86400] 144.144.3.152.in-addr.arpa. domain name pointer rack161.cs.duke.edu
[86400] 145.144.3.152.in-addr.arpa. domain name pointer rack162.cs.duke.edu
[86400] 146.144.3.152.in-addr.arpa. domain name pointer rack163.cs.duke.edu
[86400] 147.144.3.152.in-addr.arpa. domain name pointer rack164.cs.duke.edu
[86400] 148.144.3.152.in-addr.arpa. domain name pointer rack165.cs.duke.edu
[86400] 149.144.3.152.in-addr.arpa. domain name pointer rack166.cs.duke.edu
[86400] 150.144.3.152.in-addr.arpa. domain name pointer rack167.cs.duke.edu
[86400] 151.144.3.152.in-addr.arpa. domain name pointer rack168.cs.duke.edu
[86400] 152.144.3.152.in-addr.arpa. domain name pointer rack169.cs.duke.edu
[86400] 153.144.3.152.in-addr.arpa. domain name pointer rack170.cs.duke.edu
[86400] 154.144.3.152.in-addr.arpa. domain name pointer rack171.cs.duke.edu
[86400] 155.144.3.152.in-addr.arpa. domain name pointer rack172.cs.duke.edu
[86400] 156.144.3.152.in-addr.arpa. domain name pointer rack173.cs.duke.edu
[86400] 157.144.3.152.in-addr.arpa. domain name pointer rack174.cs.duke.edu
[86400] 158.144.3.152.in-addr.arpa. domain name pointer rack175.cs.duke.edu
[86400] 159.144.3.152.in-addr.arpa. domain name pointer fetch.cs.duke.edu
[86400] 160.144.3.152.in-addr.arpa. domain name pointer rack177.cs.duke.edu
[86400] 161.144.3.152.in-addr.arpa. domain name pointer rack178.cs.duke.edu
[86400] 162.144.3.152.in-addr.arpa. domain name pointer rack179.cs.duke.edu
[86400] 163.144.3.152.in-addr.arpa. domain name pointer rack180.cs.duke.edu
[86400] 164.144.3.152.in-addr.arpa. domain name pointer rack181.cs.duke.edu
[86400] 165.144.3.152.in-addr.arpa. domain name pointer rack182.cs.duke.edu
[86400] 166.144.3.152.in-addr.arpa. domain name pointer rack183.cs.duke.edu
[86400] 167.144.3.152.in-addr.arpa. domain name pointer rack184.cs.duke.edu
[86400] 168.144.3.152.in-addr.arpa. domain name pointer rack185.cs.duke.edu
[86400] 169.144.3.152.in-addr.arpa. domain name pointer rack186.cs.duke.edu
[86400] 170.144.3.152.in-addr.arpa. domain name pointer rack187.cs.duke.edu
[86400] 171.144.3.152.in-addr.arpa. domain name pointer rack188.cs.duke.edu
[86400] 172.144.3.152.in-addr.arpa. domain name pointer rack189.cs.duke.edu
[86400] 173.144.3.152.in-addr.arpa. domain name pointer rack190.cs.duke.edu
[86400] 174.144.3.152.in-addr.arpa. domain name pointer rack191.cs.duke.edu
[86400] 175.144.3.152.in-addr.arpa. domain name pointer rack192.cs.duke.edu
[86400] 176.144.3.152.in-addr.arpa. domain name pointer rack193.cs.duke.edu
[86400] 177.144.3.152.in-addr.arpa. domain name pointer rack194.cs.duke.edu
[86400] 178.144.3.152.in-addr.arpa. domain name pointer rack195.cs.duke.edu
[86400] 179.144.3.152.in-addr.arpa. domain name pointer rack196.cs.duke.edu
[86400] 180.144.3.152.in-addr.arpa. domain name pointer rack197.cs.duke.edu
[86400] 181.144.3.152.in-addr.arpa. domain name pointer rack198.cs.duke.edu
[86400] 182.144.3.152.in-addr.arpa. domain name pointer rack199.cs.duke.edu
[86400] 183.144.3.152.in-addr.arpa. domain name pointer rack200.cs.duke.edu
[86400] 184.144.3.152.in-addr.arpa. domain name pointer rack201.cs.duke.edu
[86400] 185.144.3.152.in-addr.arpa. domain name pointer rack202.cs.duke.edu
[86400] 186.144.3.152.in-addr.arpa. domain name pointer rack203.cs.duke.edu
[86400] 187.144.3.152.in-addr.arpa. domain name pointer rack204.cs.duke.edu
[86400] 188.144.3.152.in-addr.arpa. domain name pointer rack205.cs.duke.edu
[86400] 189.144.3.152.in-addr.arpa. domain name pointer rack206.cs.duke.edu
[86400] 190.144.3.152.in-addr.arpa. domain name pointer rack207.cs.duke.edu
[86400] 191.144.3.152.in-addr.arpa. domain name pointer rack208.cs.duke.edu
[86400] 192.144.3.152.in-addr.arpa. domain name pointer rack209.cs.duke.edu
[86400] 193.144.3.152.in-addr.arpa. domain name pointer rack210.cs.duke.edu
[86400] 194.144.3.152.in-addr.arpa. domain name pointer rack211.cs.duke.edu
[86400] 195.144.3.152.in-addr.arpa. domain name pointer rack212.cs.duke.edu
[86400] 196.144.3.152.in-addr.arpa. domain name pointer rack213.cs.duke.edu
[86400] 197.144.3.152.in-addr.arpa. domain name pointer rack214.cs.duke.edu
[86400] 198.144.3.152.in-addr.arpa. domain name pointer rack215.cs.duke.edu
[86400] 199.144.3.152.in-addr.arpa. domain name pointer rack216.cs.duke.edu
[86400] 200.144.3.152.in-addr.arpa. domain name pointer rack217.cs.duke.edu
[86400] 201.144.3.152.in-addr.arpa. domain name pointer rack218.cs.duke.edu
[86400] 202.144.3.152.in-addr.arpa. domain name pointer rack219.cs.duke.edu
[86400] 203.144.3.152.in-addr.arpa. domain name pointer rack220.cs.duke.edu
[86400] 204.144.3.152.in-addr.arpa. domain name pointer rack221.cs.duke.edu
[86400] 205.144.3.152.in-addr.arpa. domain name pointer rack222.cs.duke.edu
[86400] 206.144.3.152.in-addr.arpa. domain name pointer rack223.cs.duke.edu
[86400] 207.144.3.152.in-addr.arpa. domain name pointer rack224.cs.duke.edu
[86400] 208.144.3.152.in-addr.arpa. domain name pointer rack225.cs.duke.edu
[86400] 209.144.3.152.in-addr.arpa. domain name pointer rack226.cs.duke.edu
[86400] 210.144.3.152.in-addr.arpa. domain name pointer rack227.cs.duke.edu
[86400] 211.144.3.152.in-addr.arpa. domain name pointer rack228.cs.duke.edu
[86400] 212.144.3.152.in-addr.arpa. domain name pointer rack229.cs.duke.edu
[86400] 213.144.3.152.in-addr.arpa. domain name pointer rack230.cs.duke.edu
[86400] 214.144.3.152.in-addr.arpa. domain name pointer rack231.cs.duke.edu
[86400] 215.144.3.152.in-addr.arpa. domain name pointer rack232.cs.duke.edu
[86400] 216.144.3.152.in-addr.arpa. domain name pointer rack233.cs.duke.edu
[86400] 217.144.3.152.in-addr.arpa. domain name pointer rack234.cs.duke.edu
[86400] 218.144.3.152.in-addr.arpa. domain name pointer rack235.cs.duke.edu
[86400] 219.144.3.152.in-addr.arpa. domain name pointer rack236.cs.duke.edu
[86400] 220.144.3.152.in-addr.arpa. domain name pointer rack237.cs.duke.edu
[86400] 221.144.3.152.in-addr.arpa. domain name pointer rack238.cs.duke.edu
[86400] 222.144.3.152.in-addr.arpa. domain name pointer rack239.cs.duke.edu
[86400] 223.144.3.152.in-addr.arpa. domain name pointer rack240.cs.duke.edu
[86400] 224.144.3.152.in-addr.arpa. domain name pointer rack241.cs.duke.edu
[86400] 225.144.3.152.in-addr.arpa. domain name pointer rack242.cs.duke.edu
[86400] 226.144.3.152.in-addr.arpa. domain name pointer rack243.cs.duke.edu
[86400] 227.144.3.152.in-addr.arpa. domain name pointer rack244.cs.duke.edu
[86400] 228.144.3.152.in-addr.arpa. domain name pointer rack245.cs.duke.edu
[86400] 229.144.3.152.in-addr.arpa. domain name pointer rack246.cs.duke.edu
[86400] 230.144.3.152.in-addr.arpa. domain name pointer rack247.cs.duke.edu
[86400] 231.144.3.152.in-addr.arpa. domain name pointer rack248.cs.duke.edu
[86400] 232.144.3.152.in-addr.arpa. domain name pointer rack249.cs.duke.edu
[86400] 233.144.3.152.in-addr.arpa. domain name pointer rack250.cs.duke.edu
[86400] 234.144.3.152.in-addr.arpa. domain name pointer rack251.cs.duke.edu
[86400] 235.144.3.152.in-addr.arpa. domain name pointer rack252.cs.duke.edu
[86400] 236.144.3.152.in-addr.arpa. domain name pointer rack253.cs.duke.edu
[86400] 237.144.3.152.in-addr.arpa. domain name pointer rack254.cs.duke.edu
[86400] 238.144.3.152.in-addr.arpa. domain name pointer rack255.cs.duke.edu
[86400] 239.144.3.152.in-addr.arpa. domain name pointer rack256.cs.duke.edu
[86400] 240.144.3.152.in-addr.arpa. domain name pointer rack257.cs.duke.edu
[86400] 241.144.3.152.in-addr.arpa. domain name pointer rack258.cs.duke.edu
[86400] 242.144.3.152.in-addr.arpa. domain name pointer rack259.cs.duke.edu
[86400] 243.144.3.152.in-addr.arpa. domain name pointer rack260.cs.duke.edu
[86400] 244.144.3.152.in-addr.arpa. domain name pointer rack261.cs.duke.edu
[86400] 245.144.3.152.in-addr.arpa. domain name pointer rack262.cs.duke.edu
[86400] 246.144.3.152.in-addr.arpa. domain name pointer rack263.cs.duke.edu
[86400] 247.144.3.152.in-addr.arpa. domain name pointer rack264.cs.duke.edu
[86400] 248.144.3.152.in-addr.arpa. domain name pointer rack265.cs.duke.edu
[86400] 249.144.3.152.in-addr.arpa. domain name pointer rack266.cs.duke.edu
[86400] 250.144.3.152.in-addr.arpa. domain name pointer rack267.cs.duke.edu
[86400] 251.144.3.152.in-addr.arpa. domain name pointer rack268.cs.duke.edu
[86400] 252.144.3.152.in-addr.arpa. domain name pointer rack269.cs.duke.edu
[86400] 253.144.3.152.in-addr.arpa. domain name pointer rack270.cs.duke.edu
[86400] 254.144.3.152.in-addr.arpa. domain name pointer rack271.cs.duke.edu
[0] 255.144.3.152.in-addr.arpa.: domain name does not exist