[0] 0.12.231.147.in-addr.arpa.: domain name does not exist
[86400] 1.12.231.147.in-addr.arpa. domain name pointer visla.utia.cas.cz
[86400] 2.12.231.147.in-addr.arpa. domain name pointer emilie.utia.cas.cz
[86400] 3.12.231.147.in-addr.arpa. domain name pointer dtp.utia.cas.cz
[86400] 4.12.231.147.in-addr.arpa. domain name pointer bamail.utia.cas.cz
[86400] 5.12.231.147.in-addr.arpa. domain name pointer hermes.utia.cas.cz
[86400] 6.12.231.147.in-addr.arpa. domain name pointer sympa.utia.cas.cz
[86400] 7.12.231.147.in-addr.arpa. domain name pointer jara.utia.cas.cz
[86400] 8.12.231.147.in-addr.arpa. domain name pointer dony.utia.cas.cz
[86400] 9.12.231.147.in-addr.arpa. domain name pointer ribana.utia.cas.cz
[86400] 10.12.231.147.in-addr.arpa. domain name pointer merkur.utia.cas.cz
[86400] 11.12.231.147.in-addr.arpa. domain name pointer kvakin.utia.cas.cz
[86400] 12.12.231.147.in-addr.arpa. domain name pointer sp-emilie.utia.cas.cz
[86400] 13.12.231.147.in-addr.arpa. domain name pointer savovm.utia.cas.cz
[86400] 14.12.231.147.in-addr.arpa. domain name pointer csirt.utia.cas.cz
[86400] 15.12.231.147.in-addr.arpa. domain name pointer macek.utia.cas.cz
[86400] 16.12.231.147.in-addr.arpa. domain name pointer krishna.utia.cas.cz
[86400] 17.12.231.147.in-addr.arpa. domain name pointer bagheera.utia.cas.cz
[86400] 18.12.231.147.in-addr.arpa. domain name pointer hades.utia.cas.cz
[86400] 19.12.231.147.in-addr.arpa. domain name pointer straka.utia.cas.cz
[86400] 20.12.231.147.in-addr.arpa. domain name pointer sova.utia.cas.cz
[86400] 21.12.231.147.in-addr.arpa. domain name pointer slon.utia.cas.cz
[86400] 22.12.231.147.in-addr.arpa. domain name pointer sokol.utia.cas.cz
[86400] 23.12.231.147.in-addr.arpa. domain name pointer dagmar.utia.cas.cz
[86400] 24.12.231.147.in-addr.arpa. domain name pointer miluska.utia.cas.cz
[86400] 25.12.231.147.in-addr.arpa. domain name pointer hanus.utia.cas.cz
[86400] 26.12.231.147.in-addr.arpa. domain name pointer drakous.utia.cas.cz
[86400] 27.12.231.147.in-addr.arpa. domain name pointer knihovna.utia.cas.cz
[86400] 28.12.231.147.in-addr.arpa. domain name pointer maugli.utia.cas.cz
[86400] 29.12.231.147.in-addr.arpa. domain name pointer kolcava.utia.cas.cz
[86400] 30.12.231.147.in-addr.arpa. domain name pointer turako.utia.cas.cz
[86400] 31.12.231.147.in-addr.arpa. domain name pointer gwy-utia.utia.cas.cz
[86400] 32.12.231.147.in-addr.arpa. domain name pointer rehak.utia.cas.cz
[86400] 33.12.231.147.in-addr.arpa. domain name pointer pheella.utia.cas.cz
[86400] 34.12.231.147.in-addr.arpa. domain name pointer ondatra.utia.cas.cz
[86400] 35.12.231.147.in-addr.arpa. domain name pointer bajkonur.utia.cas.cz
[86400] 36.12.231.147.in-addr.arpa. domain name pointer kachna.utia.cas.cz
[86400] 37.12.231.147.in-addr.arpa. domain name pointer potapka.utia.cas.cz
[86400] 38.12.231.147.in-addr.arpa. domain name pointer jhoch.utia.cas.cz
[86400] 39.12.231.147.in-addr.arpa. domain name pointer lori.utia.cas.cz
[86400] 40.12.231.147.in-addr.arpa. domain name pointer lemur.utia.cas.cz
[86400] 41.12.231.147.in-addr.arpa. domain name pointer sunray.utia.cas.cz
[86400] 42.12.231.147.in-addr.arpa. domain name pointer axolotl.utia.cas.cz
[86400] 43.12.231.147.in-addr.arpa. domain name pointer styx.utia.cas.cz
[86400] 44.12.231.147.in-addr.arpa. domain name pointer mirikina.utia.cas.cz
[86400] 45.12.231.147.in-addr.arpa. domain name pointer kvido.utia.cas.cz
[86400] 46.12.231.147.in-addr.arpa. domain name pointer janzura.utia.cas.cz
[86400] 47.12.231.147.in-addr.arpa. domain name pointer mimas.utia.cas.cz
[86400] 48.12.231.147.in-addr.arpa. domain name pointer cpanitag.utia.cas.cz
[86400] 49.12.231.147.in-addr.arpa. domain name pointer ivana.utia.cas.cz
[86400] 50.12.231.147.in-addr.arpa. domain name pointer mustang.utia.cas.cz
[86400] 51.12.231.147.in-addr.arpa. domain name pointer sojka.utia.cas.cz
[86400] 52.12.231.147.in-addr.arpa. domain name pointer pasovec.utia.cas.cz
[86400] 53.12.231.147.in-addr.arpa. domain name pointer drak.utia.cas.cz
[86400] 54.12.231.147.in-addr.arpa. domain name pointer krysa.utia.cas.cz
[86400] 55.12.231.147.in-addr.arpa. domain name pointer blecha.utia.cas.cz
[86400] 56.12.231.147.in-addr.arpa. domain name pointer tom.utia.cas.cz
[86400] 57.12.231.147.in-addr.arpa. domain name pointer jerry.utia.cas.cz
[86400] 58.12.231.147.in-addr.arpa. domain name pointer havrlant.utia.cas.cz
[86400] 59.12.231.147.in-addr.arpa. domain name pointer mouse.utia.cas.cz
[86400] 60.12.231.147.in-addr.arpa. domain name pointer kara.utia.cas.cz
[86400] 61.12.231.147.in-addr.arpa. domain name pointer zdenda.utia.cas.cz
[0] 62.12.231.147.in-addr.arpa.: domain name does not exist
[86400] 63.12.231.147.in-addr.arpa. domain name pointer greyline.utia.cas.cz
[86400] 64.12.231.147.in-addr.arpa. domain name pointer japan.utia.cas.cz
[86400] 65.12.231.147.in-addr.arpa. domain name pointer mates.utia.cas.cz
[86400] 66.12.231.147.in-addr.arpa. domain name pointer tonda.utia.cas.cz
[86400] 67.12.231.147.in-addr.arpa. domain name pointer botic.utia.cas.cz
[86400] 68.12.231.147.in-addr.arpa. domain name pointer zuzanka.utia.cas.cz
[86400] 69.12.231.147.in-addr.arpa. domain name pointer homer.utia.cas.cz
[86400] 70.12.231.147.in-addr.arpa. domain name pointer honziiik.utia.cas.cz
[86400] 71.12.231.147.in-addr.arpa. domain name pointer zajous.utia.cas.cz
[86400] 72.12.231.147.in-addr.arpa. domain name pointer misak.utia.cas.cz
[86400] 73.12.231.147.in-addr.arpa. domain name pointer kaktus.utia.cas.cz
[86400] 74.12.231.147.in-addr.arpa. domain name pointer pocitac.utia.cas.cz
[86400] 75.12.231.147.in-addr.arpa. domain name pointer octopus.utia.cas.cz
[86400] 76.12.231.147.in-addr.arpa. domain name pointer rybenka.utia.cas.cz
[86400] 77.12.231.147.in-addr.arpa. domain name pointer comp106.utia.cas.cz
[86400] 78.12.231.147.in-addr.arpa. domain name pointer hausdorff.utia.cas.cz
[86400] 79.12.231.147.in-addr.arpa. domain name pointer milacek.utia.cas.cz
[86400] 80.12.231.147.in-addr.arpa. domain name pointer berounka.utia.cas.cz
[86400] 81.12.231.147.in-addr.arpa. domain name pointer gavial.utia.cas.cz
[86400] 82.12.231.147.in-addr.arpa. domain name pointer aligator.utia.cas.cz
[86400] 83.12.231.147.in-addr.arpa. domain name pointer zirafa.utia.cas.cz
[86400] 84.12.231.147.in-addr.arpa. domain name pointer zebra.utia.cas.cz
[86400] 85.12.231.147.in-addr.arpa. domain name pointer alfavm.utia.cas.cz
[86400] 86.12.231.147.in-addr.arpa. domain name pointer betavm.utia.cas.cz
[86400] 87.12.231.147.in-addr.arpa. domain name pointer gamavm.utia.cas.cz
[86400] 88.12.231.147.in-addr.arpa. domain name pointer kamzik.utia.cas.cz
[86400] 89.12.231.147.in-addr.arpa. domain name pointer jipik.utia.cas.cz
[86400] 90.12.231.147.in-addr.arpa. domain name pointer lenochod.utia.cas.cz
[86400] 91.12.231.147.in-addr.arpa. domain name pointer SP-eis.utia.cas.cz
[86400] 92.12.231.147.in-addr.arpa. domain name pointer SP-mirikina.utia.cas.cz
[86400] 93.12.231.147.in-addr.arpa. domain name pointer SP-jara.utia.cas.cz
[86400] 94.12.231.147.in-addr.arpa. domain name pointer SP-octopus.utia.cas.cz
[86400] 95.12.231.147.in-addr.arpa. domain name pointer SP-aligator.utia.cas.cz
[86400] 96.12.231.147.in-addr.arpa. domain name pointer SP-gavial.utia.cas.cz
[86400] 97.12.231.147.in-addr.arpa. domain name pointer SP-hermes.utia.cas.cz
[86400] 98.12.231.147.in-addr.arpa. domain name pointer SP-alfavm.utia.cas.cz
[86400] 99.12.231.147.in-addr.arpa. domain name pointer SP-panda.utia.cas.cz
[86400] 100.12.231.147.in-addr.arpa. domain name pointer SP-kulan.utia.cas.cz
[86400] 101.12.231.147.in-addr.arpa. domain name pointer SP-kiang.utia.cas.cz
[86400] 102.12.231.147.in-addr.arpa. domain name pointer SP-omega.utia.cas.cz
[86400] 103.12.231.147.in-addr.arpa. domain name pointer xentest.utia.cas.cz
[86400] 104.12.231.147.in-addr.arpa. domain name pointer SP-zoivm.utia.cas.cz
[86400] 105.12.231.147.in-addr.arpa. domain name pointer sp-neo.utia.cas.cz
[86400] 106.12.231.147.in-addr.arpa. domain name pointer sp-axolotl.utia.cas.cz
[0] 107.12.231.147.in-addr.arpa.: domain name does not exist
[0] 108.12.231.147.in-addr.arpa.: domain name does not exist
[0] 109.12.231.147.in-addr.arpa.: domain name does not exist
[0] 110.12.231.147.in-addr.arpa.: domain name does not exist
[0] 111.12.231.147.in-addr.arpa.: domain name does not exist
[0] 112.12.231.147.in-addr.arpa.: domain name does not exist
[0] 113.12.231.147.in-addr.arpa.: domain name does not exist
[0] 114.12.231.147.in-addr.arpa.: domain name does not exist
[0] 115.12.231.147.in-addr.arpa.: domain name does not exist
[0] 116.12.231.147.in-addr.arpa.: domain name does not exist
[0] 117.12.231.147.in-addr.arpa.: domain name does not exist
[0] 118.12.231.147.in-addr.arpa.: domain name does not exist
[86400] 119.12.231.147.in-addr.arpa. domain name pointer rafael.utia.cas.cz
[86400] 120.12.231.147.in-addr.arpa. domain name pointer valdman.utia.cas.cz
[86400] 121.12.231.147.in-addr.arpa. domain name pointer cyril.utia.cas.cz
[86400] 122.12.231.147.in-addr.arpa. domain name pointer gautama.utia.cas.cz
[86400] 123.12.231.147.in-addr.arpa. domain name pointer minoha.utia.cas.cz
[86400] 124.12.231.147.in-addr.arpa. domain name pointer slune.utia.cas.cz
[86400] 125.12.231.147.in-addr.arpa. domain name pointer minion.utia.cas.cz
[86400] 126.12.231.147.in-addr.arpa. domain name pointer gabriel.utia.cas.cz
[86400] 127.12.231.147.in-addr.arpa. domain name pointer durman.utia.cas.cz
[86400] 128.12.231.147.in-addr.arpa. domain name pointer alter.utia.cas.cz
[86400] 129.12.231.147.in-addr.arpa. domain name pointer raptor.utia.cas.cz
[0] 130.12.231.147.in-addr.arpa.: domain name does not exist
[86400] 131.12.231.147.in-addr.arpa. domain name pointer hudec.utia.cas.cz
[86400] 132.12.231.147.in-addr.arpa. domain name pointer gordon.utia.cas.cz
[86400] 133.12.231.147.in-addr.arpa. domain name pointer lily.utia.cas.cz
[0] 134.12.231.147.in-addr.arpa.: domain name does not exist
[0] 135.12.231.147.in-addr.arpa.: domain name does not exist
[0] 136.12.231.147.in-addr.arpa.: domain name does not exist
[0] 137.12.231.147.in-addr.arpa.: domain name does not exist
[0] 138.12.231.147.in-addr.arpa.: domain name does not exist
[0] 139.12.231.147.in-addr.arpa.: domain name does not exist
[86400] 140.12.231.147.in-addr.arpa. domain name pointer siprint.utia.cas.cz
[86400] 141.12.231.147.in-addr.arpa. domain name pointer simu0192.utia.cas.cz
[86400] 142.12.231.147.in-addr.arpa. domain name pointer kolmogorov.utia.cas.cz
[86400] 143.12.231.147.in-addr.arpa. domain name pointer simu0292.utia.cas.cz
[86400] 144.12.231.147.in-addr.arpa. domain name pointer simu0592.utia.cas.cz
[86400] 145.12.231.147.in-addr.arpa. domain name pointer jiri.utia.cas.cz
[86400] 146.12.231.147.in-addr.arpa. domain name pointer mares.utia.cas.cz
[86400] 147.12.231.147.in-addr.arpa. domain name pointer lj-zolt.utia.cas.cz
[86400] 148.12.231.147.in-addr.arpa. domain name pointer vedeni1.utia.cas.cz
[86400] 149.12.231.147.in-addr.arpa. domain name pointer tekra.utia.cas.cz
[86400] 150.12.231.147.in-addr.arpa. domain name pointer iva.utia.cas.cz
[86400] 151.12.231.147.in-addr.arpa. domain name pointer lachout.utia.cas.cz
[86400] 152.12.231.147.in-addr.arpa. domain name pointer brumla.utia.cas.cz
[86400] 153.12.231.147.in-addr.arpa. domain name pointer kudelka.utia.cas.cz
[86400] 154.12.231.147.in-addr.arpa. domain name pointer veverka.utia.cas.cz
[86400] 155.12.231.147.in-addr.arpa. domain name pointer daniel.utia.cas.cz
[86400] 156.12.231.147.in-addr.arpa. domain name pointer simartin.utia.cas.cz
[86400] 157.12.231.147.in-addr.arpa. domain name pointer vrbensky.utia.cas.cz
[86400] 158.12.231.147.in-addr.arpa. domain name pointer matka.utia.cas.cz
[86400] 159.12.231.147.in-addr.arpa. domain name pointer sitest.utia.cas.cz
[86400] 160.12.231.147.in-addr.arpa. domain name pointer sindelar.utia.cas.cz
[86400] 161.12.231.147.in-addr.arpa. domain name pointer siscomp.utia.cas.cz
[86400] 162.12.231.147.in-addr.arpa. domain name pointer bican.utia.cas.cz
[86400] 163.12.231.147.in-addr.arpa. domain name pointer simu0392.utia.cas.cz
[86400] 164.12.231.147.in-addr.arpa. domain name pointer tomeek.utia.cas.cz
[86400] 165.12.231.147.in-addr.arpa. domain name pointer augusta.utia.cas.cz
[86400] 166.12.231.147.in-addr.arpa. domain name pointer jezek.utia.cas.cz
[86400] 167.12.231.147.in-addr.arpa. domain name pointer kuba.utia.cas.cz
[86400] 168.12.231.147.in-addr.arpa. domain name pointer polo.utia.cas.cz
[86400] 169.12.231.147.in-addr.arpa. domain name pointer zolt.utia.cas.cz
[86400] 170.12.231.147.in-addr.arpa. domain name pointer simu0492.utia.cas.cz
[86400] 171.12.231.147.in-addr.arpa. domain name pointer hornad.utia.cas.cz
[86400] 172.12.231.147.in-addr.arpa. domain name pointer kopriva.utia.cas.cz
[86400] 173.12.231.147.in-addr.arpa. domain name pointer kujan-nb.utia.cas.cz
[86400] 174.12.231.147.in-addr.arpa. domain name pointer moped.utia.cas.cz
[86400] 175.12.231.147.in-addr.arpa. domain name pointer kujan.utia.cas.cz
[86400] 176.12.231.147.in-addr.arpa. domain name pointer radim.utia.cas.cz
[86400] 177.12.231.147.in-addr.arpa. domain name pointer evika.utia.cas.cz
[86400] 178.12.231.147.in-addr.arpa. domain name pointer jasper.utia.cas.cz
[86400] 179.12.231.147.in-addr.arpa. domain name pointer volf.utia.cas.cz
[86400] 180.12.231.147.in-addr.arpa. domain name pointer havran.utia.cas.cz
[86400] 181.12.231.147.in-addr.arpa. domain name pointer joe.utia.cas.cz
[86400] 182.12.231.147.in-addr.arpa. domain name pointer ben.utia.cas.cz
[86400] 183.12.231.147.in-addr.arpa. domain name pointer scot.utia.cas.cz
[86400] 184.12.231.147.in-addr.arpa. domain name pointer lindsey.utia.cas.cz
[86400] 185.12.231.147.in-addr.arpa. domain name pointer nb-as03.utia.cas.cz
[86400] 186.12.231.147.in-addr.arpa. domain name pointer prokop.utia.cas.cz
[86400] 187.12.231.147.in-addr.arpa. domain name pointer conerius.utia.cas.cz
[86400] 188.12.231.147.in-addr.arpa. domain name pointer zoidberg.utia.cas.cz
[86400] 189.12.231.147.in-addr.arpa. domain name pointer monto.utia.cas.cz
[86400] 190.12.231.147.in-addr.arpa. domain name pointer swart.utia.cas.cz
[86400] 191.12.231.147.in-addr.arpa. domain name pointer koutny.utia.cas.cz
[86400] 192.12.231.147.in-addr.arpa. domain name pointer houborek.utia.cas.cz
[86400] 193.12.231.147.in-addr.arpa. domain name pointer ostriz.utia.cas.cz
[86400] 194.12.231.147.in-addr.arpa. domain name pointer sadda.utia.cas.cz
[86400] 195.12.231.147.in-addr.arpa. domain name pointer jirka.utia.cas.cz
[86400] 196.12.231.147.in-addr.arpa. domain name pointer m209.utia.cas.cz
[86400] 197.12.231.147.in-addr.arpa. domain name pointer superman.utia.cas.cz
[86400] 198.12.231.147.in-addr.arpa. domain name pointer amina.utia.cas.cz
[86400] 199.12.231.147.in-addr.arpa. domain name pointer latorica.utia.cas.cz
[86400] 200.12.231.147.in-addr.arpa. domain name pointer karny2.utia.cas.cz
[86400] 201.12.231.147.in-addr.arpa. domain name pointer testo.utia.cas.cz
[86400] 202.12.231.147.in-addr.arpa. domain name pointer reuters.utia.cas.cz
[86400] 203.12.231.147.in-addr.arpa. domain name pointer grizli.utia.cas.cz
[86400] 204.12.231.147.in-addr.arpa. domain name pointer lomilomi-nb.utia.cas.cz
[86400] 205.12.231.147.in-addr.arpa. domain name pointer si114.utia.cas.cz
[86400] 206.12.231.147.in-addr.arpa. domain name pointer kafka.utia.cas.cz
[86400] 207.12.231.147.in-addr.arpa. domain name pointer mikunek.utia.cas.cz
[86400] 208.12.231.147.in-addr.arpa. domain name pointer oggy.utia.cas.cz
[86400] 209.12.231.147.in-addr.arpa. domain name pointer vosvrdab.utia.cas.cz
[86400] 210.12.231.147.in-addr.arpa. domain name pointer asus.utia.cas.cz
[86400] 211.12.231.147.in-addr.arpa. domain name pointer juniper-pc.utia.cas.cz
[86400] 212.12.231.147.in-addr.arpa. domain name pointer vrana.utia.cas.cz
[86400] 213.12.231.147.in-addr.arpa. domain name pointer joey.utia.cas.cz
[86400] 214.12.231.147.in-addr.arpa. domain name pointer newcastle.utia.cas.cz
[86400] 215.12.231.147.in-addr.arpa. domain name pointer fajfrova-nb.utia.cas.cz
[86400] 216.12.231.147.in-addr.arpa. domain name pointer seidler-nb.utia.cas.cz
[86400] 217.12.231.147.in-addr.arpa. domain name pointer rh-hp.utia.cas.cz
[86400] 218.12.231.147.in-addr.arpa. domain name pointer mikes-nb.utia.cas.cz
[86400] 219.12.231.147.in-addr.arpa. domain name pointer pc380-1.utia.cas.cz
[86400] 220.12.231.147.in-addr.arpa. domain name pointer elektro.utia.cas.cz
[86400] 221.12.231.147.in-addr.arpa. domain name pointer ergodic.utia.cas.cz
[0] 222.12.231.147.in-addr.arpa.: domain name does not exist
[86400] 223.12.231.147.in-addr.arpa. domain name pointer kolafova.utia.cas.cz
[86400] 224.12.231.147.in-addr.arpa. domain name pointer emilnovy.utia.cas.cz
[86400] 225.12.231.147.in-addr.arpa. domain name pointer hora-nb.utia.cas.cz
[86400] 226.12.231.147.in-addr.arpa. domain name pointer zitova-nb.utia.cas.cz
[86400] 227.12.231.147.in-addr.arpa. domain name pointer 3dscan.utia.cas.cz
[86400] 228.12.231.147.in-addr.arpa. domain name pointer schwartz-nb.utia.cas.cz
[86400] 229.12.231.147.in-addr.arpa. domain name pointer spagetka.utia.cas.cz
[86400] 230.12.231.147.in-addr.arpa. domain name pointer kralova-nb.utia.cas.cz
[86400] 231.12.231.147.in-addr.arpa. domain name pointer velryba.utia.cas.cz
[86400] 232.12.231.147.in-addr.arpa. domain name pointer nb-misa.utia.cas.cz
[86400] 233.12.231.147.in-addr.arpa. domain name pointer ps3sp.utia.cas.cz
[86400] 234.12.231.147.in-addr.arpa. domain name pointer kompik.utia.cas.cz
[0] 235.12.231.147.in-addr.arpa.: domain name does not exist
[86400] 236.12.231.147.in-addr.arpa. domain name pointer marco.utia.cas.cz
[86400] 237.12.231.147.in-addr.arpa. domain name pointer acbook.utia.cas.cz
[86400] 238.12.231.147.in-addr.arpa. domain name pointer swart-nb.utia.cas.cz
[86400] 239.12.231.147.in-addr.arpa. domain name pointer grey2.utia.cas.cz
[86400] 240.12.231.147.in-addr.arpa. domain name pointer opava.utia.cas.cz
[86400] 241.12.231.147.in-addr.arpa. domain name pointer odra.utia.cas.cz
[86400] 242.12.231.147.in-addr.arpa. domain name pointer pejsek.utia.cas.cz
[86400] 243.12.231.147.in-addr.arpa. domain name pointer kafe-nb.utia.cas.cz
[86400] 244.12.231.147.in-addr.arpa. domain name pointer qnap-zoi.utia.cas.cz
[86400] 245.12.231.147.in-addr.arpa. domain name pointer zitova.utia.cas.cz
[86400] 246.12.231.147.in-addr.arpa. domain name pointer hpcolor.utia.cas.cz
[86400] 247.12.231.147.in-addr.arpa. domain name pointer sixerox.utia.cas.cz
[86400] 248.12.231.147.in-addr.arpa. domain name pointer thinker.utia.cas.cz
[86400] 249.12.231.147.in-addr.arpa. domain name pointer ondrejat.utia.cas.cz
[86400] 250.12.231.147.in-addr.arpa. domain name pointer kolbaba.utia.cas.cz
[86400] 251.12.231.147.in-addr.arpa. domain name pointer zababa.utia.cas.cz
[86400] 252.12.231.147.in-addr.arpa. domain name pointer delta.utia.cas.cz
[86400] 253.12.231.147.in-addr.arpa. domain name pointer omega.utia.cas.cz
[0] 254.12.231.147.in-addr.arpa.: domain name does not exist
[0] 255.12.231.147.in-addr.arpa.: domain name does not exist