[0] 0.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 1.173.112.217.in-addr.arpa. domain name pointer gwnap-3.avonet.cz
[0] 2.173.112.217.in-addr.arpa.: domain name does not exist
[0] 3.173.112.217.in-addr.arpa.: domain name does not exist
[0] 4.173.112.217.in-addr.arpa.: domain name does not exist
[0] 5.173.112.217.in-addr.arpa.: domain name does not exist
[0] 6.173.112.217.in-addr.arpa.: domain name does not exist
[0] 7.173.112.217.in-addr.arpa.: domain name does not exist
[0] 8.173.112.217.in-addr.arpa.: domain name does not exist
[0] 9.173.112.217.in-addr.arpa.: domain name does not exist
[0] 10.173.112.217.in-addr.arpa.: domain name does not exist
[0] 11.173.112.217.in-addr.arpa.: domain name does not exist
[0] 12.173.112.217.in-addr.arpa.: domain name does not exist
[0] 13.173.112.217.in-addr.arpa.: domain name does not exist
[0] 14.173.112.217.in-addr.arpa.: domain name does not exist
[0] 15.173.112.217.in-addr.arpa.: domain name does not exist
[0] 16.173.112.217.in-addr.arpa.: domain name does not exist
[0] 17.173.112.217.in-addr.arpa.: domain name does not exist
[0] 18.173.112.217.in-addr.arpa.: domain name does not exist
[0] 19.173.112.217.in-addr.arpa.: domain name does not exist
[0] 20.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 21.173.112.217.in-addr.arpa. domain name pointer 217-112-173-21.cust.avonet.cz
[3600] 22.173.112.217.in-addr.arpa. domain name pointer 217-112-173-22.cust.avonet.cz
[3600] 23.173.112.217.in-addr.arpa. domain name pointer 217-112-173-23.cust.avonet.cz
[3600] 24.173.112.217.in-addr.arpa. domain name pointer 217-112-173-24.cust.avonet.cz
[3600] 25.173.112.217.in-addr.arpa. domain name pointer 217-112-173-25.cust.avonet.cz
[3600] 26.173.112.217.in-addr.arpa. domain name pointer 217-112-173-26.cust.avonet.cz
[3600] 27.173.112.217.in-addr.arpa. domain name pointer 217-112-173-27.cust.avonet.cz
[3600] 28.173.112.217.in-addr.arpa. domain name pointer 217-112-173-28.cust.avonet.cz
[3600] 29.173.112.217.in-addr.arpa. domain name pointer 217-112-173-29.cust.avonet.cz
[0] 30.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 31.173.112.217.in-addr.arpa. domain name pointer 217-112-173-31.cust.avonet.cz
[3600] 32.173.112.217.in-addr.arpa. domain name pointer 217-112-173-32.cust.avonet.cz
[3600] 33.173.112.217.in-addr.arpa. domain name pointer 217-112-173-33.cust.avonet.cz
[3600] 34.173.112.217.in-addr.arpa. domain name pointer 217-112-173-34.cust.avonet.cz
[3600] 35.173.112.217.in-addr.arpa. domain name pointer 217-112-173-35.cust.avonet.cz
[3600] 36.173.112.217.in-addr.arpa. domain name pointer 217-112-173-36.cust.avonet.cz
[3600] 37.173.112.217.in-addr.arpa. domain name pointer 217-112-173-37.cust.avonet.cz
[3600] 38.173.112.217.in-addr.arpa. domain name pointer 217-112-173-38.cust.avonet.cz
[3600] 39.173.112.217.in-addr.arpa. domain name pointer 217-112-173-39.cust.avonet.cz
[3600] 40.173.112.217.in-addr.arpa. domain name pointer 217-112-173-40.cust.avonet.cz
[3600] 41.173.112.217.in-addr.arpa. domain name pointer 217-112-173-41.cust.avonet.cz
[3600] 42.173.112.217.in-addr.arpa. domain name pointer 217-112-173-42.cust.avonet.cz
[3600] 43.173.112.217.in-addr.arpa. domain name pointer 217-112-173-43.cust.avonet.cz
[3600] 44.173.112.217.in-addr.arpa. domain name pointer 217-112-173-44.cust.avonet.cz
[3600] 45.173.112.217.in-addr.arpa. domain name pointer 217-112-173-45.cust.avonet.cz
[3600] 46.173.112.217.in-addr.arpa. domain name pointer 217-112-173-46.cust.avonet.cz
[3600] 47.173.112.217.in-addr.arpa. domain name pointer 217-112-173-47.cust.avonet.cz
[3600] 48.173.112.217.in-addr.arpa. domain name pointer 217-112-173-48.cust.avonet.cz
[3600] 49.173.112.217.in-addr.arpa. domain name pointer 217-112-173-49.cust.avonet.cz
[3600] 50.173.112.217.in-addr.arpa. domain name pointer 217-112-173-50.cust.avonet.cz
[3600] 51.173.112.217.in-addr.arpa. domain name pointer 217-112-173-51.cust.avonet.cz
[3600] 52.173.112.217.in-addr.arpa. domain name pointer 217-112-173-52.cust.avonet.cz
[3600] 53.173.112.217.in-addr.arpa. domain name pointer 217-112-173-53.cust.avonet.cz
[0] 54.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 55.173.112.217.in-addr.arpa. domain name pointer 217-112-173-55.cust.avonet.cz
[3600] 56.173.112.217.in-addr.arpa. domain name pointer 217-112-173-56.cust.avonet.cz
[3600] 57.173.112.217.in-addr.arpa. domain name pointer 217-112-173-57.cust.avonet.cz
[3600] 58.173.112.217.in-addr.arpa. domain name pointer 217-112-173-58.cust.avonet.cz
[3600] 59.173.112.217.in-addr.arpa. domain name pointer 217-112-173-59.cust.avonet.cz
[3600] 60.173.112.217.in-addr.arpa. domain name pointer 217-112-173-60.cust.avonet.cz
[3600] 61.173.112.217.in-addr.arpa. domain name pointer 217-112-173-61.cust.avonet.cz
[3600] 62.173.112.217.in-addr.arpa. domain name pointer 217-112-173-62.cust.avonet.cz
[0] 63.173.112.217.in-addr.arpa.: domain name does not exist
[0] 64.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 65.173.112.217.in-addr.arpa. domain name pointer gwzl-38.avonet.cz
[3600] 66.173.112.217.in-addr.arpa. domain name pointer 217-112-173-66.cust.avonet.cz
[3600] 67.173.112.217.in-addr.arpa. domain name pointer 217-112-173-67.cust.avonet.cz
[3600] 68.173.112.217.in-addr.arpa. domain name pointer 217-112-173-68.cust.avonet.cz
[3600] 69.173.112.217.in-addr.arpa. domain name pointer 217-112-173-69.cust.avonet.cz
[3600] 70.173.112.217.in-addr.arpa. domain name pointer 217-112-173-70.cust.avonet.cz
[3600] 71.173.112.217.in-addr.arpa. domain name pointer 217-112-173-71.cust.avonet.cz
[3600] 72.173.112.217.in-addr.arpa. domain name pointer 217-112-173-72.cust.avonet.cz
[3600] 73.173.112.217.in-addr.arpa. domain name pointer 217-112-173-73.cust.avonet.cz
[3600] 74.173.112.217.in-addr.arpa. domain name pointer 217-112-173-74.cust.avonet.cz
[3600] 75.173.112.217.in-addr.arpa. domain name pointer 217-112-173-75.cust.avonet.cz
[0] 76.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 77.173.112.217.in-addr.arpa. domain name pointer 217-112-173-77.cust.avonet.cz
[3600] 78.173.112.217.in-addr.arpa. domain name pointer 217-112-173-78.cust.avonet.cz
[3600] 79.173.112.217.in-addr.arpa. domain name pointer 217-112-173-79.cust.avonet.cz
[3600] 80.173.112.217.in-addr.arpa. domain name pointer 217-112-173-80.cust.avonet.cz
[3600] 81.173.112.217.in-addr.arpa. domain name pointer 217-112-173-81.cust.avonet.cz
[3600] 82.173.112.217.in-addr.arpa. domain name pointer 217-112-173-82.cust.avonet.cz
[3600] 83.173.112.217.in-addr.arpa. domain name pointer 217-112-173-83.cust.avonet.cz
[3600] 84.173.112.217.in-addr.arpa. domain name pointer 217-112-173-84.cust.avonet.cz
[3600] 85.173.112.217.in-addr.arpa. domain name pointer 217-112-173-85.cust.avonet.cz
[3600] 86.173.112.217.in-addr.arpa. domain name pointer 217-112-173-86.cust.avonet.cz
[0] 87.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 88.173.112.217.in-addr.arpa. domain name pointer 217-112-173-88.cust.avonet.cz
[0] 89.173.112.217.in-addr.arpa.: domain name does not exist
[0] 90.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 91.173.112.217.in-addr.arpa. domain name pointer 217-112-173-91.cust.avonet.cz
[3600] 92.173.112.217.in-addr.arpa. domain name pointer 217-112-173-92.cust.avonet.cz
[0] 93.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 94.173.112.217.in-addr.arpa. domain name pointer 217-112-173-94.cust.avonet.cz
[3600] 95.173.112.217.in-addr.arpa. domain name pointer 217-112-173-95.cust.avonet.cz
[3600] 96.173.112.217.in-addr.arpa. domain name pointer 217-112-173-96.cust.avonet.cz
[3600] 97.173.112.217.in-addr.arpa. domain name pointer 217-112-173-97.cust.avonet.cz
[3600] 98.173.112.217.in-addr.arpa. domain name pointer 217-112-173-98.cust.avonet.cz
[3600] 99.173.112.217.in-addr.arpa. domain name pointer 217-112-173-99.cust.avonet.cz
[3600] 100.173.112.217.in-addr.arpa. domain name pointer 217-112-173-100.cust.avonet.cz
[3600] 101.173.112.217.in-addr.arpa. domain name pointer 217-112-173-101.cust.avonet.cz
[3600] 102.173.112.217.in-addr.arpa. domain name pointer 217-112-173-102.cust.avonet.cz
[3600] 103.173.112.217.in-addr.arpa. domain name pointer 217-112-173-103.cust.avonet.cz
[3600] 104.173.112.217.in-addr.arpa. domain name pointer 217-112-173-104.cust.avonet.cz
[3600] 105.173.112.217.in-addr.arpa. domain name pointer 217-112-173-105.cust.avonet.cz
[3600] 106.173.112.217.in-addr.arpa. domain name pointer 217-112-173-106.cust.avonet.cz
[3600] 107.173.112.217.in-addr.arpa. domain name pointer 217-112-173-107.cust.avonet.cz
[0] 108.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 109.173.112.217.in-addr.arpa. domain name pointer 217-112-173-109.cust.avonet.cz
[0] 110.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 111.173.112.217.in-addr.arpa. domain name pointer 217-112-173-111.cust.avonet.cz
[3600] 112.173.112.217.in-addr.arpa. domain name pointer 217-112-173-112.cust.avonet.cz
[0] 113.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 114.173.112.217.in-addr.arpa. domain name pointer 217-112-173-114.cust.avonet.cz
[3600] 115.173.112.217.in-addr.arpa. domain name pointer 217-112-173-115.cust.avonet.cz
[3600] 116.173.112.217.in-addr.arpa. domain name pointer 217-112-173-116.cust.avonet.cz
[3600] 117.173.112.217.in-addr.arpa. domain name pointer 217-112-173-117.cust.avonet.cz
[0] 118.173.112.217.in-addr.arpa.: domain name does not exist
[0] 119.173.112.217.in-addr.arpa.: domain name does not exist
[0] 120.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 121.173.112.217.in-addr.arpa. domain name pointer 217-112-173-121.cust.avonet.cz
[0] 122.173.112.217.in-addr.arpa.: domain name does not exist
[0] 123.173.112.217.in-addr.arpa.: domain name does not exist
[0] 124.173.112.217.in-addr.arpa.: domain name does not exist
[0] 125.173.112.217.in-addr.arpa.: domain name does not exist
[0] 126.173.112.217.in-addr.arpa.: domain name does not exist
[0] 127.173.112.217.in-addr.arpa.: domain name does not exist
[0] 128.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 129.173.112.217.in-addr.arpa. domain name pointer 217-112-173-129.cust.avonet.cz
[3600] 130.173.112.217.in-addr.arpa. domain name pointer 217-112-173-130.cust.avonet.cz
[3600] 131.173.112.217.in-addr.arpa. domain name pointer 217-112-173-131.cust.avonet.cz
[3600] 132.173.112.217.in-addr.arpa. domain name pointer 217-112-173-132.cust.avonet.cz
[3600] 133.173.112.217.in-addr.arpa. domain name pointer 217-112-173-133.cust.avonet.cz
[3600] 134.173.112.217.in-addr.arpa. domain name pointer 217-112-173-134.cust.avonet.cz
[0] 135.173.112.217.in-addr.arpa.: domain name does not exist
[0] 136.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 137.173.112.217.in-addr.arpa. domain name pointer gw-km-magneton-1-28-1-cust.avonet.cz
[3600] 138.173.112.217.in-addr.arpa. domain name pointer 217-112-173-138.cust.avonet.cz
[3600] 139.173.112.217.in-addr.arpa. domain name pointer 217-112-173-139.cust.avonet.cz
[3600] 140.173.112.217.in-addr.arpa. domain name pointer ce-km-magneton-1.avonet.cz
[3600] 141.173.112.217.in-addr.arpa. domain name pointer rempo.avonet.cz
[3600] 142.173.112.217.in-addr.arpa. domain name pointer 217-112-173-142.cust.avonet.cz
[0] 143.173.112.217.in-addr.arpa.: domain name does not exist
[0] 144.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 145.173.112.217.in-addr.arpa. domain name pointer 217-112-173-145.cust.avonet.cz
[3600] 146.173.112.217.in-addr.arpa. domain name pointer 217-112-173-146.cust.avonet.cz
[3600] 147.173.112.217.in-addr.arpa. domain name pointer 217-112-173-147.cust.avonet.cz
[3600] 148.173.112.217.in-addr.arpa. domain name pointer 217-112-173-148.cust.avonet.cz
[3600] 149.173.112.217.in-addr.arpa. domain name pointer 217-112-173-149.cust.avonet.cz
[3600] 150.173.112.217.in-addr.arpa. domain name pointer 217-112-173-150.cust.avonet.cz
[3600] 151.173.112.217.in-addr.arpa. domain name pointer 217-112-173-151.cust.avonet.cz
[3600] 152.173.112.217.in-addr.arpa. domain name pointer 217-112-173-152.cust.avonet.cz
[3600] 153.173.112.217.in-addr.arpa. domain name pointer 217-112-173-153.cust.avonet.cz
[3600] 154.173.112.217.in-addr.arpa. domain name pointer 217-112-173-154.cust.avonet.cz
[3600] 155.173.112.217.in-addr.arpa. domain name pointer 217-112-173-155.cust.avonet.cz
[3600] 156.173.112.217.in-addr.arpa. domain name pointer 217-112-173-156.cust.avonet.cz
[3600] 157.173.112.217.in-addr.arpa. domain name pointer 217-112-173-157.cust.avonet.cz
[3600] 158.173.112.217.in-addr.arpa. domain name pointer 217-112-173-158.cust.avonet.cz
[0] 159.173.112.217.in-addr.arpa.: domain name does not exist
[0] 160.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 161.173.112.217.in-addr.arpa. domain name pointer ce-mal-tajmac-1.avonet.cz
[3600] 162.173.112.217.in-addr.arpa. domain name pointer gate2.zps.cz
[3600] 163.173.112.217.in-addr.arpa. domain name pointer gate3.zps.cz
[3600] 164.173.112.217.in-addr.arpa. domain name pointer gate4.zps.cz
[3600] 165.173.112.217.in-addr.arpa. domain name pointer gate5.zps.cz
[3600] 166.173.112.217.in-addr.arpa. domain name pointer gate6.zps.cz
[3600] 167.173.112.217.in-addr.arpa. domain name pointer gate7.zps.cz
[3600] 168.173.112.217.in-addr.arpa. domain name pointer gate8.zps.cz
[3600] 169.173.112.217.in-addr.arpa. domain name pointer 217-112-173-169.cust.avonet.cz
[3600] 170.173.112.217.in-addr.arpa. domain name pointer 217-112-173-170.cust.avonet.cz
[3600] 171.173.112.217.in-addr.arpa. domain name pointer 217-112-173-171.cust.avonet.cz
[3600] 172.173.112.217.in-addr.arpa. domain name pointer 217-112-173-172.cust.avonet.cz
[3600] 173.173.112.217.in-addr.arpa. domain name pointer 217-112-173-173.cust.avonet.cz
[0] 174.173.112.217.in-addr.arpa.: domain name does not exist
[0] 175.173.112.217.in-addr.arpa.: domain name does not exist
[0] 176.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 177.173.112.217.in-addr.arpa. domain name pointer 217-112-173-177.cust.avonet.cz
[3600] 178.173.112.217.in-addr.arpa. domain name pointer smtp.ntvcable.cz
[3600] 179.173.112.217.in-addr.arpa. domain name pointer 217-112-173-179.cust.avonet.cz
[3600] 180.173.112.217.in-addr.arpa. domain name pointer 217-112-173-180.cust.avonet.cz
[3600] 181.173.112.217.in-addr.arpa. domain name pointer 217-112-173-181.cust.avonet.cz
[3600] 182.173.112.217.in-addr.arpa. domain name pointer 217-112-173-182.cust.avonet.cz
[0] 183.173.112.217.in-addr.arpa.: domain name does not exist
[0] 184.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 185.173.112.217.in-addr.arpa. domain name pointer gw-kis-zl-jednota-probe-5.avonet.cz
[3600] 186.173.112.217.in-addr.arpa. domain name pointer kis-zl-jednota-probe-5.avonet.cz
[0] 187.173.112.217.in-addr.arpa.: domain name does not exist
[0] 188.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 189.173.112.217.in-addr.arpa. domain name pointer gw2-kis-zl-jednota-probe-5.avonet.cz
[3600] 190.173.112.217.in-addr.arpa. domain name pointer kis-zl-jednota-probe-5-nat.avonet.cz
[0] 191.173.112.217.in-addr.arpa.: domain name does not exist
[0] 192.173.112.217.in-addr.arpa.: domain name does not exist
[0] 193.173.112.217.in-addr.arpa.: domain name does not exist
[0] 194.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 195.173.112.217.in-addr.arpa. domain name pointer 217-112-173-195.cust.mojewifi.net
[0] 196.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 197.173.112.217.in-addr.arpa. domain name pointer 217-112-173-197.cust.mojewifi.net
[3600] 198.173.112.217.in-addr.arpa. domain name pointer 217-112-173-198.cust.mojewifi.net
[3600] 199.173.112.217.in-addr.arpa. domain name pointer 217-112-173-199.cust.mojewifi.net
[0] 200.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 201.173.112.217.in-addr.arpa. domain name pointer 217-112-173-201.cust.avonet.cz
[3600] 202.173.112.217.in-addr.arpa. domain name pointer 217-112-173-202.cust.mojewifi.net
[0] 203.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 204.173.112.217.in-addr.arpa. domain name pointer 217-112-173-204.cust.mojewifi.net
[0] 205.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 206.173.112.217.in-addr.arpa. domain name pointer 217-112-173-206.private.avonet.cz
[0] 207.173.112.217.in-addr.arpa.: domain name does not exist
[0] 208.173.112.217.in-addr.arpa.: domain name does not exist
[0] 209.173.112.217.in-addr.arpa.: domain name does not exist
[0] 210.173.112.217.in-addr.arpa.: domain name does not exist
[0] 211.173.112.217.in-addr.arpa.: domain name does not exist
[0] 212.173.112.217.in-addr.arpa.: domain name does not exist
[0] 213.173.112.217.in-addr.arpa.: domain name does not exist
[0] 214.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 215.173.112.217.in-addr.arpa. domain name pointer 217-112-173-215.cust.avonet.cz
[0] 216.173.112.217.in-addr.arpa.: domain name does not exist
[0] 217.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 218.173.112.217.in-addr.arpa. domain name pointer 217-112-173-218.cust.mojewifi.net
[0] 219.173.112.217.in-addr.arpa.: domain name does not exist
[0] 220.173.112.217.in-addr.arpa.: domain name does not exist
[0] 221.173.112.217.in-addr.arpa.: domain name does not exist
[0] 222.173.112.217.in-addr.arpa.: domain name does not exist
[0] 223.173.112.217.in-addr.arpa.: domain name does not exist
[0] 224.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 225.173.112.217.in-addr.arpa. domain name pointer gw-2.zlin.impromat.cz
[3600] 226.173.112.217.in-addr.arpa. domain name pointer gate.zlin.impromat.cz
[3600] 227.173.112.217.in-addr.arpa. domain name pointer mms.impromat.cz
[3600] 228.173.112.217.in-addr.arpa. domain name pointer 217-112-173-228.cust.avonet.cz
[3600] 229.173.112.217.in-addr.arpa. domain name pointer 217-112-173-229.cust.avonet.cz
[3600] 230.173.112.217.in-addr.arpa. domain name pointer 217-112-173-230.cust.avonet.cz
[3600] 231.173.112.217.in-addr.arpa. domain name pointer 217-112-173-231.cust.avonet.cz
[3600] 232.173.112.217.in-addr.arpa. domain name pointer 217-112-173-232.cust.avonet.cz
[3600] 233.173.112.217.in-addr.arpa. domain name pointer 217-112-173-233.cust.avonet.cz
[3600] 234.173.112.217.in-addr.arpa. domain name pointer 217-112-173-234.cust.avonet.cz
[3600] 235.173.112.217.in-addr.arpa. domain name pointer skladka.kozela.cz
[0] 236.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 237.173.112.217.in-addr.arpa. domain name pointer skladka.impromat.cz
[0] 238.173.112.217.in-addr.arpa.: domain name does not exist
[0] 239.173.112.217.in-addr.arpa.: domain name does not exist
[0] 240.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 241.173.112.217.in-addr.arpa. domain name pointer gw-gaston121-5-cust.avonet.cz
[3600] 242.173.112.217.in-addr.arpa. domain name pointer 217-112-173-242.cust.avonet.cz
[3600] 243.173.112.217.in-addr.arpa. domain name pointer 217-112-173-243.cust.avonet.cz
[3600] 244.173.112.217.in-addr.arpa. domain name pointer 217-112-173-244.cust.avonet.cz
[3600] 245.173.112.217.in-addr.arpa. domain name pointer 217-112-173-245.cust.avonet.cz
[3600] 246.173.112.217.in-addr.arpa. domain name pointer 217-112-173-246.cust.avonet.cz
[0] 247.173.112.217.in-addr.arpa.: domain name does not exist
[0] 248.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 249.173.112.217.in-addr.arpa. domain name pointer gw-otr-toma-1-28-2-cust.avonet.cz
[3600] 250.173.112.217.in-addr.arpa. domain name pointer mail.teaz.cz
[0] 251.173.112.217.in-addr.arpa.: domain name does not exist
[0] 252.173.112.217.in-addr.arpa.: domain name does not exist
[3600] 253.173.112.217.in-addr.arpa. domain name pointer 217-112-173-253.cust.avonet.cz
[3600] 254.173.112.217.in-addr.arpa. domain name pointer 217-112-173-254.cust.avonet.cz
[0] 255.173.112.217.in-addr.arpa.: domain name does not exist