[0] 0.83.105.129.in-addr.arpa.: domain name does not exist [86400] 1.83.105.129.in-addr.arpa. domain name pointer annbrg-325-vln-83.northwestern.edu [0] 2.83.105.129.in-addr.arpa.: domain name does not exist [0] 3.83.105.129.in-addr.arpa.: domain name does not exist [0] 4.83.105.129.in-addr.arpa.: domain name does not exist [0] 5.83.105.129.in-addr.arpa.: domain name does not exist [0] 6.83.105.129.in-addr.arpa.: domain name does not exist [0] 7.83.105.129.in-addr.arpa.: domain name does not exist [0] 8.83.105.129.in-addr.arpa.: domain name does not exist [0] 9.83.105.129.in-addr.arpa.: domain name does not exist [0] 10.83.105.129.in-addr.arpa.: domain name does not exist [0] 11.83.105.129.in-addr.arpa.: domain name does not exist [0] 12.83.105.129.in-addr.arpa.: domain name does not exist [0] 13.83.105.129.in-addr.arpa.: domain name does not exist [0] 14.83.105.129.in-addr.arpa.: domain name does not exist [0] 15.83.105.129.in-addr.arpa.: domain name does not exist [0] 16.83.105.129.in-addr.arpa.: domain name does not exist [0] 17.83.105.129.in-addr.arpa.: domain name does not exist [0] 18.83.105.129.in-addr.arpa.: domain name does not exist [0] 19.83.105.129.in-addr.arpa.: domain name does not exist [0] 20.83.105.129.in-addr.arpa.: domain name does not exist [0] 21.83.105.129.in-addr.arpa.: domain name does not exist [0] 22.83.105.129.in-addr.arpa.: domain name does not exist [0] 23.83.105.129.in-addr.arpa.: domain name does not exist [0] 24.83.105.129.in-addr.arpa.: domain name does not exist [0] 25.83.105.129.in-addr.arpa.: domain name does not exist [0] 26.83.105.129.in-addr.arpa.: domain name does not exist [0] 27.83.105.129.in-addr.arpa.: domain name does not exist [0] 28.83.105.129.in-addr.arpa.: domain name does not exist [0] 29.83.105.129.in-addr.arpa.: domain name does not exist [0] 30.83.105.129.in-addr.arpa.: domain name does not exist [0] 31.83.105.129.in-addr.arpa.: domain name does not exist [0] 32.83.105.129.in-addr.arpa.: domain name does not exist [0] 33.83.105.129.in-addr.arpa.: domain name does not exist [0] 34.83.105.129.in-addr.arpa.: domain name does not exist [0] 35.83.105.129.in-addr.arpa.: domain name does not exist [0] 36.83.105.129.in-addr.arpa.: domain name does not exist [0] 37.83.105.129.in-addr.arpa.: domain name does not exist [0] 38.83.105.129.in-addr.arpa.: domain name does not exist [0] 39.83.105.129.in-addr.arpa.: domain name does not exist [0] 40.83.105.129.in-addr.arpa.: domain name does not exist [0] 41.83.105.129.in-addr.arpa.: domain name does not exist [0] 42.83.105.129.in-addr.arpa.: domain name does not exist [0] 43.83.105.129.in-addr.arpa.: domain name does not exist [0] 44.83.105.129.in-addr.arpa.: domain name does not exist [0] 45.83.105.129.in-addr.arpa.: domain name does not exist [0] 46.83.105.129.in-addr.arpa.: domain name does not exist [0] 47.83.105.129.in-addr.arpa.: domain name does not exist [0] 48.83.105.129.in-addr.arpa.: domain name does not exist [0] 49.83.105.129.in-addr.arpa.: domain name does not exist [0] 50.83.105.129.in-addr.arpa.: domain name does not exist [86400] 51.83.105.129.in-addr.arpa. domain name pointer wazgroup.chem.northwestern.edu [86400] 52.83.105.129.in-addr.arpa. domain name pointer urey.chem.northwestern.edu [86400] 53.83.105.129.in-addr.arpa. domain name pointer huckel.chem.northwestern.edu [86400] 54.83.105.129.in-addr.arpa. domain name pointer campr.chem.northwestern.edu [86400] 55.83.105.129.in-addr.arpa. domain name pointer npi41459b.chem.northwestern.edu [86400] 56.83.105.129.in-addr.arpa. domain name pointer magilla.chem.northwestern.edu [86400] 57.83.105.129.in-addr.arpa. domain name pointer kong.chem.northwestern.edu [86400] 58.83.105.129.in-addr.arpa. domain name pointer orangutan.chem.northwestern.edu [86400] 59.83.105.129.in-addr.arpa. domain name pointer mirkin-dpn.chem.northwestern.edu [86400] 60.83.105.129.in-addr.arpa. domain name pointer mirkin-dpn-back.chem.northwestern.edu [86400] 61.83.105.129.in-addr.arpa. domain name pointer bojangles.chem.northwestern.edu [86400] 62.83.105.129.in-addr.arpa. domain name pointer camirkin.chem.northwestern.edu [86400] 63.83.105.129.in-addr.arpa. domain name pointer admin16.chem.northwestern.edu [86400] 64.83.105.129.in-addr.arpa. domain name pointer nan083064.chem.northwestern.edu [86400] 65.83.105.129.in-addr.arpa. domain name pointer nan083065.chem.northwestern.edu [86400] 66.83.105.129.in-addr.arpa. domain name pointer nan083066.chem.northwestern.edu [86400] 67.83.105.129.in-addr.arpa. domain name pointer nan083067.chem.northwestern.edu [86400] 68.83.105.129.in-addr.arpa. domain name pointer nan083068.chem.northwestern.edu [86400] 69.83.105.129.in-addr.arpa. domain name pointer nan083069.chem.northwestern.edu [86400] 70.83.105.129.in-addr.arpa. domain name pointer nan083070.chem.northwestern.edu [86400] 71.83.105.129.in-addr.arpa. domain name pointer nan083071.chem.northwestern.edu [86400] 72.83.105.129.in-addr.arpa. domain name pointer nan083072.chem.northwestern.edu [86400] 73.83.105.129.in-addr.arpa. domain name pointer nan083073.chem.northwestern.edu [86400] 74.83.105.129.in-addr.arpa. domain name pointer nan083074.chem.northwestern.edu [86400] 75.83.105.129.in-addr.arpa. domain name pointer nan083075.chem.northwestern.edu [86400] 76.83.105.129.in-addr.arpa. domain name pointer nan083076.chem.northwestern.edu [86400] 77.83.105.129.in-addr.arpa. domain name pointer nan083077.chem.northwestern.edu [86400] 78.83.105.129.in-addr.arpa. domain name pointer nan083078.chem.northwestern.edu [86400] 79.83.105.129.in-addr.arpa. domain name pointer nan083079.chem.northwestern.edu [86400] 80.83.105.129.in-addr.arpa. domain name pointer nan083080.chem.northwestern.edu [86400] 81.83.105.129.in-addr.arpa. domain name pointer nan083081.chem.northwestern.edu [86400] 82.83.105.129.in-addr.arpa. domain name pointer nan083082.chem.northwestern.edu [86400] 83.83.105.129.in-addr.arpa. domain name pointer nan083083.chem.northwestern.edu [86400] 84.83.105.129.in-addr.arpa. domain name pointer nan083084.chem.northwestern.edu [86400] 85.83.105.129.in-addr.arpa. domain name pointer nan083085.chem.northwestern.edu [86400] 86.83.105.129.in-addr.arpa. domain name pointer nan083086.chem.northwestern.edu [86400] 87.83.105.129.in-addr.arpa. domain name pointer nan083087.chem.northwestern.edu [86400] 88.83.105.129.in-addr.arpa. domain name pointer nan083088.chem.northwestern.edu [86400] 89.83.105.129.in-addr.arpa. domain name pointer nan083089.chem.northwestern.edu [86400] 90.83.105.129.in-addr.arpa. domain name pointer nan083090.chem.northwestern.edu [86400] 91.83.105.129.in-addr.arpa. domain name pointer nan083091.chem.northwestern.edu [86400] 92.83.105.129.in-addr.arpa. domain name pointer nan083092.chem.northwestern.edu [86400] 93.83.105.129.in-addr.arpa. domain name pointer nan083093.chem.northwestern.edu [86400] 94.83.105.129.in-addr.arpa. domain name pointer nan083094.chem.northwestern.edu [86400] 95.83.105.129.in-addr.arpa. domain name pointer nan083095.chem.northwestern.edu [86400] 96.83.105.129.in-addr.arpa. domain name pointer nan083096.chem.northwestern.edu [86400] 97.83.105.129.in-addr.arpa. domain name pointer nan083097.chem.northwestern.edu [86400] 98.83.105.129.in-addr.arpa. domain name pointer nan083098.chem.northwestern.edu [86400] 99.83.105.129.in-addr.arpa. domain name pointer nan083099.chem.northwestern.edu [86400] 100.83.105.129.in-addr.arpa. domain name pointer nan083100.chem.northwestern.edu [86400] 101.83.105.129.in-addr.arpa. domain name pointer nan083101.chem.northwestern.edu [86400] 102.83.105.129.in-addr.arpa. domain name pointer nan083102.chem.northwestern.edu [86400] 103.83.105.129.in-addr.arpa. domain name pointer nan083103.chem.northwestern.edu [86400] 104.83.105.129.in-addr.arpa. domain name pointer nan083104.chem.northwestern.edu [86400] 105.83.105.129.in-addr.arpa. domain name pointer nan083105.chem.northwestern.edu [86400] 106.83.105.129.in-addr.arpa. domain name pointer nan083106.chem.northwestern.edu [86400] 107.83.105.129.in-addr.arpa. domain name pointer nan083107.chem.northwestern.edu [86400] 108.83.105.129.in-addr.arpa. domain name pointer nan083108.chem.northwestern.edu [86400] 109.83.105.129.in-addr.arpa. domain name pointer nan083109.chem.northwestern.edu [86400] 110.83.105.129.in-addr.arpa. domain name pointer nan083110.chem.northwestern.edu [86400] 111.83.105.129.in-addr.arpa. domain name pointer nan083111.chem.northwestern.edu [86400] 112.83.105.129.in-addr.arpa. domain name pointer nan083112.chem.northwestern.edu [86400] 113.83.105.129.in-addr.arpa. domain name pointer nan083113.chem.northwestern.edu [86400] 114.83.105.129.in-addr.arpa. domain name pointer nan083114.chem.northwestern.edu [86400] 115.83.105.129.in-addr.arpa. domain name pointer nan083115.chem.northwestern.edu [86400] 116.83.105.129.in-addr.arpa. domain name pointer nan083116.chem.northwestern.edu [86400] 117.83.105.129.in-addr.arpa. domain name pointer nan083117.chem.northwestern.edu [86400] 118.83.105.129.in-addr.arpa. domain name pointer nan083118.chem.northwestern.edu [86400] 119.83.105.129.in-addr.arpa. domain name pointer nan083119.chem.northwestern.edu [86400] 120.83.105.129.in-addr.arpa. domain name pointer nan083120.chem.northwestern.edu [86400] 121.83.105.129.in-addr.arpa. domain name pointer nan083121.chem.northwestern.edu [86400] 122.83.105.129.in-addr.arpa. domain name pointer nan083122.chem.northwestern.edu [86400] 123.83.105.129.in-addr.arpa. domain name pointer nan083123.chem.northwestern.edu [86400] 124.83.105.129.in-addr.arpa. domain name pointer nan083124.chem.northwestern.edu [86400] 125.83.105.129.in-addr.arpa. domain name pointer nan083125.chem.northwestern.edu [86400] 126.83.105.129.in-addr.arpa. domain name pointer nan083126.chem.northwestern.edu [86400] 127.83.105.129.in-addr.arpa. domain name pointer nan083127.chem.northwestern.edu [86400] 128.83.105.129.in-addr.arpa. domain name pointer nan083128.chem.northwestern.edu [86400] 129.83.105.129.in-addr.arpa. domain name pointer nan083129.chem.northwestern.edu [86400] 130.83.105.129.in-addr.arpa. domain name pointer nan083130.chem.northwestern.edu [86400] 131.83.105.129.in-addr.arpa. domain name pointer nan083131.chem.northwestern.edu [86400] 132.83.105.129.in-addr.arpa. domain name pointer nan083132.chem.northwestern.edu [86400] 133.83.105.129.in-addr.arpa. domain name pointer nan083133.chem.northwestern.edu [86400] 134.83.105.129.in-addr.arpa. domain name pointer nan083134.chem.northwestern.edu [86400] 135.83.105.129.in-addr.arpa. domain name pointer nan083135.chem.northwestern.edu [86400] 136.83.105.129.in-addr.arpa. domain name pointer nan083136.chem.northwestern.edu [86400] 137.83.105.129.in-addr.arpa. domain name pointer nan083137.chem.northwestern.edu [86400] 138.83.105.129.in-addr.arpa. domain name pointer nan083138.chem.northwestern.edu [86400] 139.83.105.129.in-addr.arpa. domain name pointer nan083139.chem.northwestern.edu [86400] 140.83.105.129.in-addr.arpa. domain name pointer nan083140.chem.northwestern.edu [86400] 141.83.105.129.in-addr.arpa. domain name pointer nan083141.chem.northwestern.edu [86400] 142.83.105.129.in-addr.arpa. domain name pointer nan083142.chem.northwestern.edu [86400] 143.83.105.129.in-addr.arpa. domain name pointer nan083143.chem.northwestern.edu [86400] 144.83.105.129.in-addr.arpa. domain name pointer nan083144.chem.northwestern.edu [86400] 145.83.105.129.in-addr.arpa. domain name pointer nan083145.chem.northwestern.edu [86400] 146.83.105.129.in-addr.arpa. domain name pointer nan083146.chem.northwestern.edu [86400] 147.83.105.129.in-addr.arpa. domain name pointer nan083147.chem.northwestern.edu [86400] 148.83.105.129.in-addr.arpa. domain name pointer nan083148.chem.northwestern.edu [86400] 149.83.105.129.in-addr.arpa. domain name pointer nan083149.chem.northwestern.edu [86400] 150.83.105.129.in-addr.arpa. domain name pointer nan083150.chem.northwestern.edu [86400] 151.83.105.129.in-addr.arpa. domain name pointer nan083151.chem.northwestern.edu [86400] 152.83.105.129.in-addr.arpa. domain name pointer nan083152.chem.northwestern.edu [86400] 153.83.105.129.in-addr.arpa. domain name pointer nan083153.chem.northwestern.edu [86400] 154.83.105.129.in-addr.arpa. domain name pointer nan083154.chem.northwestern.edu [86400] 155.83.105.129.in-addr.arpa. domain name pointer nan083155.chem.northwestern.edu [86400] 156.83.105.129.in-addr.arpa. domain name pointer nan083156.chem.northwestern.edu [86400] 157.83.105.129.in-addr.arpa. domain name pointer nan083157.chem.northwestern.edu [86400] 158.83.105.129.in-addr.arpa. domain name pointer nan083158.chem.northwestern.edu [86400] 159.83.105.129.in-addr.arpa. domain name pointer nan083159.chem.northwestern.edu [86400] 160.83.105.129.in-addr.arpa. domain name pointer nan083160.chem.northwestern.edu [86400] 161.83.105.129.in-addr.arpa. domain name pointer nan083161.chem.northwestern.edu [86400] 162.83.105.129.in-addr.arpa. domain name pointer nan083162.chem.northwestern.edu [86400] 163.83.105.129.in-addr.arpa. domain name pointer nan083163.chem.northwestern.edu [86400] 164.83.105.129.in-addr.arpa. domain name pointer nan083164.chem.northwestern.edu [86400] 165.83.105.129.in-addr.arpa. domain name pointer nan083165.chem.northwestern.edu [86400] 166.83.105.129.in-addr.arpa. domain name pointer nan083166.chem.northwestern.edu [86400] 167.83.105.129.in-addr.arpa. domain name pointer nan083167.chem.northwestern.edu [86400] 168.83.105.129.in-addr.arpa. domain name pointer nan083168.chem.northwestern.edu [86400] 169.83.105.129.in-addr.arpa. domain name pointer nan083169.chem.northwestern.edu [86400] 170.83.105.129.in-addr.arpa. domain name pointer nan083170.chem.northwestern.edu [86400] 171.83.105.129.in-addr.arpa. domain name pointer nan083171.chem.northwestern.edu [86400] 172.83.105.129.in-addr.arpa. domain name pointer nan083172.chem.northwestern.edu [86400] 173.83.105.129.in-addr.arpa. domain name pointer nan083173.chem.northwestern.edu [86400] 174.83.105.129.in-addr.arpa. domain name pointer nan083174.chem.northwestern.edu [86400] 175.83.105.129.in-addr.arpa. domain name pointer nan083175.chem.northwestern.edu [86400] 176.83.105.129.in-addr.arpa. domain name pointer nan083176.chem.northwestern.edu [86400] 177.83.105.129.in-addr.arpa. domain name pointer nan083177.chem.northwestern.edu [86400] 178.83.105.129.in-addr.arpa. domain name pointer nan083178.chem.northwestern.edu [86400] 179.83.105.129.in-addr.arpa. domain name pointer nan083179.chem.northwestern.edu [86400] 180.83.105.129.in-addr.arpa. domain name pointer nan083180.chem.northwestern.edu [86400] 181.83.105.129.in-addr.arpa. domain name pointer nan083181.chem.northwestern.edu [86400] 182.83.105.129.in-addr.arpa. domain name pointer nan083182.chem.northwestern.edu [86400] 183.83.105.129.in-addr.arpa. domain name pointer nan083183.chem.northwestern.edu [86400] 184.83.105.129.in-addr.arpa. domain name pointer nan083184.chem.northwestern.edu [86400] 185.83.105.129.in-addr.arpa. domain name pointer nan083185.chem.northwestern.edu [86400] 186.83.105.129.in-addr.arpa. domain name pointer nan083186.chem.northwestern.edu [86400] 187.83.105.129.in-addr.arpa. domain name pointer nan083187.chem.northwestern.edu [86400] 188.83.105.129.in-addr.arpa. domain name pointer nan083188.chem.northwestern.edu [86400] 189.83.105.129.in-addr.arpa. domain name pointer nan083189.chem.northwestern.edu [86400] 190.83.105.129.in-addr.arpa. domain name pointer nan083190.chem.northwestern.edu [86400] 191.83.105.129.in-addr.arpa. domain name pointer nan083191.chem.northwestern.edu [86400] 192.83.105.129.in-addr.arpa. domain name pointer nan083192.chem.northwestern.edu [86400] 193.83.105.129.in-addr.arpa. domain name pointer nan083193.chem.northwestern.edu [86400] 194.83.105.129.in-addr.arpa. domain name pointer nan083194.chem.northwestern.edu [86400] 195.83.105.129.in-addr.arpa. domain name pointer nan083195.chem.northwestern.edu [86400] 196.83.105.129.in-addr.arpa. domain name pointer nan083196.chem.northwestern.edu [86400] 197.83.105.129.in-addr.arpa. domain name pointer nan083197.chem.northwestern.edu [86400] 198.83.105.129.in-addr.arpa. domain name pointer nan083198.chem.northwestern.edu [86400] 199.83.105.129.in-addr.arpa. domain name pointer nan083199.chem.northwestern.edu [86400] 200.83.105.129.in-addr.arpa. domain name pointer nan083200.chem.northwestern.edu [86400] 201.83.105.129.in-addr.arpa. domain name pointer nan083201.chem.northwestern.edu [86400] 202.83.105.129.in-addr.arpa. domain name pointer nan083202.chem.northwestern.edu [86400] 203.83.105.129.in-addr.arpa. domain name pointer nan083203.chem.northwestern.edu [86400] 204.83.105.129.in-addr.arpa. domain name pointer nan083204.chem.northwestern.edu [86400] 205.83.105.129.in-addr.arpa. domain name pointer nan083205.chem.northwestern.edu [86400] 206.83.105.129.in-addr.arpa. domain name pointer nan083206.chem.northwestern.edu [86400] 207.83.105.129.in-addr.arpa. domain name pointer nan083207.chem.northwestern.edu [86400] 208.83.105.129.in-addr.arpa. domain name pointer nan083208.chem.northwestern.edu [86400] 209.83.105.129.in-addr.arpa. domain name pointer nan083209.chem.northwestern.edu [86400] 210.83.105.129.in-addr.arpa. domain name pointer nan083210.chem.northwestern.edu [86400] 211.83.105.129.in-addr.arpa. domain name pointer nan083211.chem.northwestern.edu [86400] 212.83.105.129.in-addr.arpa. domain name pointer nan083212.chem.northwestern.edu [86400] 213.83.105.129.in-addr.arpa. domain name pointer nan083213.chem.northwestern.edu [86400] 214.83.105.129.in-addr.arpa. domain name pointer nan083214.chem.northwestern.edu [86400] 215.83.105.129.in-addr.arpa. domain name pointer nan083215.chem.northwestern.edu [86400] 216.83.105.129.in-addr.arpa. domain name pointer nan083216.chem.northwestern.edu [86400] 217.83.105.129.in-addr.arpa. domain name pointer nan083217.chem.northwestern.edu [86400] 218.83.105.129.in-addr.arpa. domain name pointer nan083218.chem.northwestern.edu [86400] 219.83.105.129.in-addr.arpa. domain name pointer nan083219.chem.northwestern.edu [86400] 220.83.105.129.in-addr.arpa. domain name pointer nan083220.chem.northwestern.edu [86400] 221.83.105.129.in-addr.arpa. domain name pointer nan083221.chem.northwestern.edu [86400] 222.83.105.129.in-addr.arpa. domain name pointer nan083222.chem.northwestern.edu [86400] 223.83.105.129.in-addr.arpa. domain name pointer nan083223.chem.northwestern.edu [86400] 224.83.105.129.in-addr.arpa. domain name pointer nan083224.chem.northwestern.edu [86400] 225.83.105.129.in-addr.arpa. domain name pointer nan083225.chem.northwestern.edu [86400] 226.83.105.129.in-addr.arpa. domain name pointer nan083226.chem.northwestern.edu [86400] 227.83.105.129.in-addr.arpa. domain name pointer nan083227.chem.northwestern.edu [86400] 228.83.105.129.in-addr.arpa. domain name pointer nan083228.chem.northwestern.edu [86400] 229.83.105.129.in-addr.arpa. domain name pointer nan083229.chem.northwestern.edu [86400] 230.83.105.129.in-addr.arpa. domain name pointer nan083230.chem.northwestern.edu [86400] 231.83.105.129.in-addr.arpa. domain name pointer nan083231.chem.northwestern.edu [86400] 232.83.105.129.in-addr.arpa. domain name pointer nan083232.chem.northwestern.edu [86400] 233.83.105.129.in-addr.arpa. domain name pointer nan083233.chem.northwestern.edu [86400] 234.83.105.129.in-addr.arpa. domain name pointer nan083234.chem.northwestern.edu [86400] 235.83.105.129.in-addr.arpa. domain name pointer nan083235.chem.northwestern.edu [86400] 236.83.105.129.in-addr.arpa. domain name pointer nan083236.chem.northwestern.edu [86400] 237.83.105.129.in-addr.arpa. domain name pointer nan083237.chem.northwestern.edu [86400] 238.83.105.129.in-addr.arpa. domain name pointer nan083238.chem.northwestern.edu [86400] 239.83.105.129.in-addr.arpa. domain name pointer nan083239.chem.northwestern.edu [86400] 240.83.105.129.in-addr.arpa. domain name pointer nan083240.chem.northwestern.edu [86400] 241.83.105.129.in-addr.arpa. domain name pointer nan083241.chem.northwestern.edu [86400] 242.83.105.129.in-addr.arpa. domain name pointer nan083242.chem.northwestern.edu [86400] 243.83.105.129.in-addr.arpa. domain name pointer nan083243.chem.northwestern.edu [86400] 244.83.105.129.in-addr.arpa. domain name pointer nan083244.chem.northwestern.edu [86400] 245.83.105.129.in-addr.arpa. domain name pointer nan083245.chem.northwestern.edu [86400] 246.83.105.129.in-addr.arpa. domain name pointer nan083246.chem.northwestern.edu [86400] 247.83.105.129.in-addr.arpa. domain name pointer nan083247.chem.northwestern.edu [86400] 248.83.105.129.in-addr.arpa. domain name pointer nan083248.chem.northwestern.edu [86400] 249.83.105.129.in-addr.arpa. domain name pointer nan083249.chem.northwestern.edu [86400] 250.83.105.129.in-addr.arpa. domain name pointer nan083250.chem.northwestern.edu [86400] 251.83.105.129.in-addr.arpa. domain name pointer nan083251.chem.northwestern.edu [86400] 252.83.105.129.in-addr.arpa. domain name pointer nan083252.chem.northwestern.edu [86400] 253.83.105.129.in-addr.arpa. domain name pointer nan083253.chem.northwestern.edu [86400] 254.83.105.129.in-addr.arpa. domain name pointer nan083254.chem.northwestern.edu [0] 255.83.105.129.in-addr.arpa.: domain name does not exist