[0] 0.1.159.18.in-addr.arpa.: domain name does not exist
[1800] 1.1.159.18.in-addr.arpa. domain name pointer mitfcs5vpn108.mit.edu
[1800] 2.1.159.18.in-addr.arpa. domain name pointer mitfcs5vpn109.mit.edu
[1800] 3.1.159.18.in-addr.arpa. domain name pointer mitfcs5vpn110.mit.edu
[1800] 4.1.159.18.in-addr.arpa. domain name pointer mitfcs5vpn111.mit.edu
[1800] 5.1.159.18.in-addr.arpa. domain name pointer mitfcs5vpn112.mit.edu
[1800] 6.1.159.18.in-addr.arpa. domain name pointer mitfcs5vpn113.mit.edu
[1800] 7.1.159.18.in-addr.arpa. domain name pointer langervideoconf-76-600.mit.edu
[1800] 8.1.159.18.in-addr.arpa. domain name pointer koehler-node1.mit.edu
[1800] 9.1.159.18.in-addr.arpa. domain name pointer m76secsys3.mit.edu
[1800] 10.1.159.18.in-addr.arpa. domain name pointer pc-76-361.mit.edu
[1800] 11.1.159.18.in-addr.arpa. domain name pointer bhatiam.mit.edu
[1800] 12.1.159.18.in-addr.arpa. domain name pointer koehler-node2.mit.edu
[1800] 13.1.159.18.in-addr.arpa. domain name pointer lovehqprinter.mit.edu
[1800] 14.1.159.18.in-addr.arpa. domain name pointer m76secsys7.mit.edu
[1800] 15.1.159.18.in-addr.arpa. domain name pointer m76secsys8.mit.edu
[1800] 16.1.159.18.in-addr.arpa. domain name pointer edstrom.mit.edu
[1800] 17.1.159.18.in-addr.arpa. domain name pointer m76-109b.mit.edu
[1800] 18.1.159.18.in-addr.arpa. domain name pointer m76-111a.mit.edu
[1800] 19.1.159.18.in-addr.arpa. domain name pointer m76-111b.mit.edu
[1800] 20.1.159.18.in-addr.arpa. domain name pointer m76-109c.mit.edu
[1800] 21.1.159.18.in-addr.arpa. domain name pointer m76-109a.mit.edu
[1800] 22.1.159.18.in-addr.arpa. domain name pointer m76-108.mit.edu
[1800] 23.1.159.18.in-addr.arpa. domain name pointer m76-110.mit.edu
[1800] 24.1.159.18.in-addr.arpa. domain name pointer m76-135.mit.edu
[1800] 25.1.159.18.in-addr.arpa. domain name pointer m76-137.mit.edu
[1800] 26.1.159.18.in-addr.arpa. domain name pointer m76-107.mit.edu
[1800] 27.1.159.18.in-addr.arpa. domain name pointer m76-158.mit.edu
[1800] 28.1.159.18.in-addr.arpa. domain name pointer m76-133a.mit.edu
[1800] 29.1.159.18.in-addr.arpa. domain name pointer m76-133b.mit.edu
[1800] 30.1.159.18.in-addr.arpa. domain name pointer m76-104.mit.edu
[1800] 31.1.159.18.in-addr.arpa. domain name pointer m76-122.mit.edu
[1800] 32.1.159.18.in-addr.arpa. domain name pointer m76-141.mit.edu
[1800] 33.1.159.18.in-addr.arpa. domain name pointer m76-145.mit.edu
[1800] 34.1.159.18.in-addr.arpa. domain name pointer m76-106.mit.edu
[1800] 35.1.159.18.in-addr.arpa. domain name pointer m76-107p.mit.edu
[1800] 36.1.159.18.in-addr.arpa. domain name pointer m76-158p.mit.edu
[1800] 37.1.159.18.in-addr.arpa. domain name pointer m76-147p.mit.edu
[1800] 38.1.159.18.in-addr.arpa. domain name pointer m76-143p.mit.edu
[1800] 39.1.159.18.in-addr.arpa. domain name pointer m76-106p.mit.edu
[1800] 40.1.159.18.in-addr.arpa. domain name pointer m76-111cop.mit.edu
[1800] 41.1.159.18.in-addr.arpa. domain name pointer m76-109cop.mit.edu
[1800] 42.1.159.18.in-addr.arpa. domain name pointer m76-158cop.mit.edu
[1800] 43.1.159.18.in-addr.arpa. domain name pointer m76-133p1.mit.edu
[1800] 44.1.159.18.in-addr.arpa. domain name pointer m76-060.mit.edu
[1800] 45.1.159.18.in-addr.arpa. domain name pointer kiwf.mit.edu
[1800] 46.1.159.18.in-addr.arpa. domain name pointer ccrbi3.mit.edu
[1800] 47.1.159.18.in-addr.arpa. domain name pointer ttwin7.mit.edu
[0] 48.1.159.18.in-addr.arpa.: domain name does not exist
[0] 49.1.159.18.in-addr.arpa.: domain name does not exist
[1800] 50.1.159.18.in-addr.arpa. domain name pointer ttosx.mit.edu
[1800] 51.1.159.18.in-addr.arpa. domain name pointer m76-310.mit.edu
[1800] 52.1.159.18.in-addr.arpa. domain name pointer m76-317a.mit.edu
[1800] 53.1.159.18.in-addr.arpa. domain name pointer m76-317b.mit.edu
[1800] 54.1.159.18.in-addr.arpa. domain name pointer m76-317p.mit.edu
[1800] 55.1.159.18.in-addr.arpa. domain name pointer m76-461.mit.edu
[1800] 56.1.159.18.in-addr.arpa. domain name pointer m76-461a.mit.edu
[1800] 57.1.159.18.in-addr.arpa. domain name pointer m76-461p.mit.edu
[1800] 58.1.159.18.in-addr.arpa. domain name pointer m76-441p.mit.edu
[1800] 59.1.159.18.in-addr.arpa. domain name pointer m76-443p.mit.edu
[1800] 60.1.159.18.in-addr.arpa. domain name pointer m76-453p.mit.edu
[1800] 61.1.159.18.in-addr.arpa. domain name pointer m76-511p1.mit.edu
[1800] 62.1.159.18.in-addr.arpa. domain name pointer m76-511p2.mit.edu
[1800] 63.1.159.18.in-addr.arpa. domain name pointer m76-561c.mit.edu
[1800] 64.1.159.18.in-addr.arpa. domain name pointer m76-531a.mit.edu
[1800] 65.1.159.18.in-addr.arpa. domain name pointer m76-531b.mit.edu
[1800] 66.1.159.18.in-addr.arpa. domain name pointer m76-531c.mit.edu
[1800] 67.1.159.18.in-addr.arpa. domain name pointer m76-531p1.mit.edu
[1800] 68.1.159.18.in-addr.arpa. domain name pointer m76-531p2.mit.edu
[1800] 69.1.159.18.in-addr.arpa. domain name pointer ccp1.mit.edu
[1800] 70.1.159.18.in-addr.arpa. domain name pointer ccp2.mit.edu
[1800] 71.1.159.18.in-addr.arpa. domain name pointer quen.mit.edu
[1800] 72.1.159.18.in-addr.arpa. domain name pointer kifp1.mit.edu
[1800] 73.1.159.18.in-addr.arpa. domain name pointer kip1.mit.edu
[1800] 74.1.159.18.in-addr.arpa. domain name pointer m76-461c.mit.edu
[1800] 75.1.159.18.in-addr.arpa. domain name pointer m76-461d.mit.edu
[1800] 76.1.159.18.in-addr.arpa. domain name pointer m76-461p1.mit.edu
[1800] 77.1.159.18.in-addr.arpa. domain name pointer m76-461p2.mit.edu
[1800] 78.1.159.18.in-addr.arpa. domain name pointer m76-467a.mit.edu
[1800] 79.1.159.18.in-addr.arpa. domain name pointer m76-467p1.mit.edu
[1800] 80.1.159.18.in-addr.arpa. domain name pointer m76-467p2.mit.edu
[1800] 81.1.159.18.in-addr.arpa. domain name pointer m76-467b.mit.edu
[1800] 82.1.159.18.in-addr.arpa. domain name pointer ki-ciprit1.mit.edu
[1800] 83.1.159.18.in-addr.arpa. domain name pointer m76-453a.mit.edu
[1800] 84.1.159.18.in-addr.arpa. domain name pointer m76-453p1.mit.edu
[1800] 85.1.159.18.in-addr.arpa. domain name pointer m76-453g.mit.edu
[1800] 86.1.159.18.in-addr.arpa. domain name pointer ki-ciprit2.mit.edu
[1800] 87.1.159.18.in-addr.arpa. domain name pointer m76-423a.mit.edu
[1800] 88.1.159.18.in-addr.arpa. domain name pointer m76-423b.mit.edu
[1800] 89.1.159.18.in-addr.arpa. domain name pointer m76-423p1.mit.edu
[1800] 90.1.159.18.in-addr.arpa. domain name pointer m76-423p2.mit.edu
[1800] 91.1.159.18.in-addr.arpa. domain name pointer m76-561.mit.edu
[1800] 92.1.159.18.in-addr.arpa. domain name pointer m76-561p1.mit.edu
[1800] 93.1.159.18.in-addr.arpa. domain name pointer m76-361p1.mit.edu
[1800] 94.1.159.18.in-addr.arpa. domain name pointer m76-361p2.mit.edu
[1800] 95.1.159.18.in-addr.arpa. domain name pointer m76-341a.mit.edu
[1800] 96.1.159.18.in-addr.arpa. domain name pointer m76-341p1.mit.edu
[1800] 97.1.159.18.in-addr.arpa. domain name pointer m76-341p2.mit.edu
[1800] 98.1.159.18.in-addr.arpa. domain name pointer m76-343a.mit.edu
[1800] 99.1.159.18.in-addr.arpa. domain name pointer m76-343p1.mit.edu
[1800] 100.1.159.18.in-addr.arpa. domain name pointer lmrt02.mit.edu
[1800] 101.1.159.18.in-addr.arpa. domain name pointer lmrt03.mit.edu
[1800] 102.1.159.18.in-addr.arpa. domain name pointer lmrt04.mit.edu
[1800] 103.1.159.18.in-addr.arpa. domain name pointer lmrt05.mit.edu
[1800] 104.1.159.18.in-addr.arpa. domain name pointer lmrt06.mit.edu
[1800] 105.1.159.18.in-addr.arpa. domain name pointer lmrt07.mit.edu
[1800] 106.1.159.18.in-addr.arpa. domain name pointer lmrt08.mit.edu
[1800] 107.1.159.18.in-addr.arpa. domain name pointer lmrt09.mit.edu
[1800] 108.1.159.18.in-addr.arpa. domain name pointer cheri.mit.edu
[1800] 109.1.159.18.in-addr.arpa. domain name pointer lmrt11.mit.edu
[1800] 110.1.159.18.in-addr.arpa. domain name pointer lmrt12.mit.edu
[1800] 111.1.159.18.in-addr.arpa. domain name pointer lmrt-lab.mit.edu
[1800] 112.1.159.18.in-addr.arpa. domain name pointer lmrt14.mit.edu
[1800] 113.1.159.18.in-addr.arpa. domain name pointer lmrt15.mit.edu
[1800] 114.1.159.18.in-addr.arpa. domain name pointer lmrt16.mit.edu
[1800] 115.1.159.18.in-addr.arpa. domain name pointer lmrtcp.mit.edu
[1800] 116.1.159.18.in-addr.arpa. domain name pointer lmrt01.mit.edu
[1800] 117.1.159.18.in-addr.arpa. domain name pointer lmrt13.mit.edu
[1800] 118.1.159.18.in-addr.arpa. domain name pointer lmrtbwp.mit.edu
[1800] 119.1.159.18.in-addr.arpa. domain name pointer lmrt10.mit.edu
[1800] 120.1.159.18.in-addr.arpa. domain name pointer lmrtlicor.mit.edu
[1800] 121.1.159.18.in-addr.arpa. domain name pointer lmrtspot.mit.edu
[1800] 122.1.159.18.in-addr.arpa. domain name pointer lmrtsvr.mit.edu
[1800] 123.1.159.18.in-addr.arpa. domain name pointer lmrtdbm.mit.edu
[1800] 124.1.159.18.in-addr.arpa. domain name pointer lmrtfast.mit.edu
[1800] 125.1.159.18.in-addr.arpa. domain name pointer av46-biamp1-76.mit.edu
[1800] 126.1.159.18.in-addr.arpa. domain name pointer av46-biamp2-76.mit.edu
[1800] 127.1.159.18.in-addr.arpa. domain name pointer av46-biamp3-76.mit.edu
[1800] 128.1.159.18.in-addr.arpa. domain name pointer av46-biamp4-76.mit.edu
[1800] 129.1.159.18.in-addr.arpa. domain name pointer av46-biamp5-76.mit.edu
[1800] 130.1.159.18.in-addr.arpa. domain name pointer av46-biamp6-76.mit.edu
[1800] 131.1.159.18.in-addr.arpa. domain name pointer syndecan.mit.edu
[1800] 132.1.159.18.in-addr.arpa. domain name pointer perlecan.mit.edu
[1800] 133.1.159.18.in-addr.arpa. domain name pointer dcm16-825-1.mit.edu
[1800] 134.1.159.18.in-addr.arpa. domain name pointer dermatan.mit.edu
[1800] 135.1.159.18.in-addr.arpa. domain name pointer mailserver.mit.edu
[1800] 136.1.159.18.in-addr.arpa. domain name pointer laminin.mit.edu
[1800] 137.1.159.18.in-addr.arpa. domain name pointer m76-353g1.mit.edu
[1800] 138.1.159.18.in-addr.arpa. domain name pointer heparin.mit.edu
[1800] 139.1.159.18.in-addr.arpa. domain name pointer heparan.mit.edu
[1800] 140.1.159.18.in-addr.arpa. domain name pointer hlgag.mit.edu
[1800] 141.1.159.18.in-addr.arpa. domain name pointer ramadmin.mit.edu
[1800] 142.1.159.18.in-addr.arpa. domain name pointer glycomics2.mit.edu
[1800] 143.1.159.18.in-addr.arpa. domain name pointer m76-353g2.mit.edu
[1800] 144.1.159.18.in-addr.arpa. domain name pointer iprotocol.mit.edu
[1800] 145.1.159.18.in-addr.arpa. domain name pointer hylauran.mit.edu
[1800] 146.1.159.18.in-addr.arpa. domain name pointer ramslab-lp7.mit.edu
[1800] 147.1.159.18.in-addr.arpa. domain name pointer m76-353g3.mit.edu
[1800] 148.1.159.18.in-addr.arpa. domain name pointer m76-353a.mit.edu
[1800] 149.1.159.18.in-addr.arpa. domain name pointer m76-353cp1.mit.edu
[1800] 150.1.159.18.in-addr.arpa. domain name pointer m76-353cp2.mit.edu
[1800] 151.1.159.18.in-addr.arpa. domain name pointer m76-353cp3.mit.edu
[1800] 152.1.159.18.in-addr.arpa. domain name pointer m76-368.mit.edu
[1800] 153.1.159.18.in-addr.arpa. domain name pointer sharpsql.mit.edu
[1800] 154.1.159.18.in-addr.arpa. domain name pointer m76-561p2.mit.edu
[1800] 155.1.159.18.in-addr.arpa. domain name pointer m76-543a.mit.edu
[1800] 156.1.159.18.in-addr.arpa. domain name pointer m76-261p1.mit.edu
[1800] 157.1.159.18.in-addr.arpa. domain name pointer m76-261p2.mit.edu
[1800] 158.1.159.18.in-addr.arpa. domain name pointer m76-261p3.mit.edu
[1800] 159.1.159.18.in-addr.arpa. domain name pointer m76-222a.mit.edu
[1800] 160.1.159.18.in-addr.arpa. domain name pointer m76-222b.mit.edu
[1800] 161.1.159.18.in-addr.arpa. domain name pointer m76-222c.mit.edu
[1800] 162.1.159.18.in-addr.arpa. domain name pointer m76-222p.mit.edu
[1800] 163.1.159.18.in-addr.arpa. domain name pointer m76-221a.mit.edu
[1800] 164.1.159.18.in-addr.arpa. domain name pointer m76-221b.mit.edu
[1800] 165.1.159.18.in-addr.arpa. domain name pointer m76-221c.mit.edu
[1800] 166.1.159.18.in-addr.arpa. domain name pointer m76-221p.mit.edu
[1800] 167.1.159.18.in-addr.arpa. domain name pointer cprl-galahad.mit.edu
[1800] 168.1.159.18.in-addr.arpa. domain name pointer cprl-lancelot.mit.edu
[1800] 169.1.159.18.in-addr.arpa. domain name pointer cprl-p5.mit.edu
[1800] 170.1.159.18.in-addr.arpa. domain name pointer cprl-printer.mit.edu
[0] 171.1.159.18.in-addr.arpa.: domain name does not exist
[0] 172.1.159.18.in-addr.arpa.: domain name does not exist
[1800] 173.1.159.18.in-addr.arpa. domain name pointer autonmr.mit.edu
[1800] 174.1.159.18.in-addr.arpa. domain name pointer fwhitelab-print.mit.edu
[1800] 175.1.159.18.in-addr.arpa. domain name pointer whitelab-print.mit.edu
[1800] 176.1.159.18.in-addr.arpa. domain name pointer whitelab10.mit.edu
[1800] 177.1.159.18.in-addr.arpa. domain name pointer whitelab11.mit.edu
[1800] 178.1.159.18.in-addr.arpa. domain name pointer whitelab12.mit.edu
[1800] 179.1.159.18.in-addr.arpa. domain name pointer whitelab14.mit.edu
[1800] 180.1.159.18.in-addr.arpa. domain name pointer lf-76-pc1.mit.edu
[1800] 181.1.159.18.in-addr.arpa. domain name pointer whitelab16.mit.edu
[1800] 182.1.159.18.in-addr.arpa. domain name pointer bcc-test.mit.edu
[1800] 183.1.159.18.in-addr.arpa. domain name pointer whitelab18.mit.edu
[1800] 184.1.159.18.in-addr.arpa. domain name pointer whitelab2.mit.edu
[1800] 185.1.159.18.in-addr.arpa. domain name pointer whitelab3.mit.edu
[1800] 186.1.159.18.in-addr.arpa. domain name pointer whitelab4.mit.edu
[1800] 187.1.159.18.in-addr.arpa. domain name pointer whitelab5.mit.edu
[1800] 188.1.159.18.in-addr.arpa. domain name pointer whitelab6.mit.edu
[1800] 189.1.159.18.in-addr.arpa. domain name pointer whitelab7.mit.edu
[1800] 190.1.159.18.in-addr.arpa. domain name pointer whitelab8.mit.edu
[1800] 191.1.159.18.in-addr.arpa. domain name pointer whitelab9.mit.edu
[1800] 192.1.159.18.in-addr.arpa. domain name pointer whitelab6250.mit.edu
[1800] 193.1.159.18.in-addr.arpa. domain name pointer ki-promega1.mit.edu
[1800] 194.1.159.18.in-addr.arpa. domain name pointer ki-promega2.mit.edu
[1800] 195.1.159.18.in-addr.arpa. domain name pointer ccr-293.mit.edu
[1800] 196.1.159.18.in-addr.arpa. domain name pointer lan-76-cp1.mit.edu
[1800] 197.1.159.18.in-addr.arpa. domain name pointer lan-76-bw1.mit.edu
[1800] 198.1.159.18.in-addr.arpa. domain name pointer lan-76-cp2.mit.edu
[1800] 199.1.159.18.in-addr.arpa. domain name pointer lan-76-cp3.mit.edu
[1800] 200.1.159.18.in-addr.arpa. domain name pointer lan-76-cp4.mit.edu
[1800] 201.1.159.18.in-addr.arpa. domain name pointer lan-76-cp5.mit.edu
[1800] 202.1.159.18.in-addr.arpa. domain name pointer lan-76-cop1.mit.edu
[1800] 203.1.159.18.in-addr.arpa. domain name pointer and-76-cp1.mit.edu
[1800] 204.1.159.18.in-addr.arpa. domain name pointer lan-76-pc1.mit.edu
[1800] 205.1.159.18.in-addr.arpa. domain name pointer lan-76-pc2.mit.edu
[1800] 206.1.159.18.in-addr.arpa. domain name pointer lan-76-pc3.mit.edu
[1800] 207.1.159.18.in-addr.arpa. domain name pointer lan-76-pc4.mit.edu
[1800] 208.1.159.18.in-addr.arpa. domain name pointer lan-76-pc5.mit.edu
[1800] 209.1.159.18.in-addr.arpa. domain name pointer lan-76-pc6.mit.edu
[1800] 210.1.159.18.in-addr.arpa. domain name pointer lan-76-pc7.mit.edu
[1800] 211.1.159.18.in-addr.arpa. domain name pointer lan-76-pc8.mit.edu
[1800] 212.1.159.18.in-addr.arpa. domain name pointer lan-76-pc9.mit.edu
[1800] 213.1.159.18.in-addr.arpa. domain name pointer and-76-pc1.mit.edu
[1800] 214.1.159.18.in-addr.arpa. domain name pointer tls-mit-srv.mit.edu
[1800] 215.1.159.18.in-addr.arpa. domain name pointer tls-1m8j7g1.mit.edu
[1800] 216.1.159.18.in-addr.arpa. domain name pointer ki76-259-vc.mit.edu
[1800] 217.1.159.18.in-addr.arpa. domain name pointer ki76-156-vc.mit.edu
[1800] 218.1.159.18.in-addr.arpa. domain name pointer cres76-156.mit.edu
[1800] 219.1.159.18.in-addr.arpa. domain name pointer cres76-259.mit.edu
[1800] 220.1.159.18.in-addr.arpa. domain name pointer teeth.mit.edu
[1800] 221.1.159.18.in-addr.arpa. domain name pointer m76-543b.mit.edu
[1800] 222.1.159.18.in-addr.arpa. domain name pointer m76-543c.mit.edu
[1800] 223.1.159.18.in-addr.arpa. domain name pointer m76-543d.mit.edu
[1800] 224.1.159.18.in-addr.arpa. domain name pointer m76-543e.mit.edu
[1800] 225.1.159.18.in-addr.arpa. domain name pointer m76-543f.mit.edu
[1800] 226.1.159.18.in-addr.arpa. domain name pointer m76-543g.mit.edu
[1800] 227.1.159.18.in-addr.arpa. domain name pointer m76-543h.mit.edu
[1800] 228.1.159.18.in-addr.arpa. domain name pointer m76-543i.mit.edu
[1800] 229.1.159.18.in-addr.arpa. domain name pointer m76-543j.mit.edu
[1800] 230.1.159.18.in-addr.arpa. domain name pointer m76-541a.mit.edu
[1800] 231.1.159.18.in-addr.arpa. domain name pointer m76-541b.mit.edu
[1800] 232.1.159.18.in-addr.arpa. domain name pointer m76-541c.mit.edu
[1800] 233.1.159.18.in-addr.arpa. domain name pointer m76-541d.mit.edu
[1800] 234.1.159.18.in-addr.arpa. domain name pointer m76-541e.mit.edu
[1800] 235.1.159.18.in-addr.arpa. domain name pointer m76-541f.mit.edu
[1800] 236.1.159.18.in-addr.arpa. domain name pointer m76-541g.mit.edu
[1800] 237.1.159.18.in-addr.arpa. domain name pointer m76-541h.mit.edu
[1800] 238.1.159.18.in-addr.arpa. domain name pointer m76-541i.mit.edu
[1800] 239.1.159.18.in-addr.arpa. domain name pointer m76-541j.mit.edu
[1800] 240.1.159.18.in-addr.arpa. domain name pointer ki-aa-server.mit.edu
[1800] 241.1.159.18.in-addr.arpa. domain name pointer m76-273b1.mit.edu
[1800] 242.1.159.18.in-addr.arpa. domain name pointer m76-273b2.mit.edu
[1800] 243.1.159.18.in-addr.arpa. domain name pointer m76-273bp1.mit.edu
[1800] 244.1.159.18.in-addr.arpa. domain name pointer m76-279a1.mit.edu
[1800] 245.1.159.18.in-addr.arpa. domain name pointer m76-279a2.mit.edu
[1800] 246.1.159.18.in-addr.arpa. domain name pointer m76-279a3.mit.edu
[1800] 247.1.159.18.in-addr.arpa. domain name pointer m76-279a4.mit.edu
[1800] 248.1.159.18.in-addr.arpa. domain name pointer m76-279a5.mit.edu
[1800] 249.1.159.18.in-addr.arpa. domain name pointer m76-273a1.mit.edu
[1800] 250.1.159.18.in-addr.arpa. domain name pointer m76-273a2.mit.edu
[1800] 251.1.159.18.in-addr.arpa. domain name pointer m767-273a3.mit.edu
[1800] 252.1.159.18.in-addr.arpa. domain name pointer m76-273a4.mit.edu
[1800] 253.1.159.18.in-addr.arpa. domain name pointer m76-273p1.mit.edu
[0] 254.1.159.18.in-addr.arpa.: domain name does not exist
[0] 255.1.159.18.in-addr.arpa.: domain name does not exist