[0] 0.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 1.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic812131951.ttnet.net.tr
[0] 2.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 3.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 4.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 5.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 6.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 7.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 8.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 9.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 10.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 11.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 12.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 13.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 14.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 15.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 16.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 17.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 18.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 19.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 20.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319520.ttnet.net.tr
[86400] 21.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319521.ttnet.net.tr
[0] 22.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 23.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 24.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319524.ttnet.net.tr
[0] 25.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 26.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 27.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319527.ttnet.net.tr
[0] 28.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 29.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 30.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 31.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 32.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 33.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 34.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 35.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 36.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319536.ttnet.net.tr
[0] 37.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 38.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 39.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 40.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 41.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 42.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 43.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 44.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 45.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 46.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 47.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 48.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319548.ttnet.net.tr
[0] 49.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 50.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 51.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 52.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 53.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 54.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 55.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 56.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 57.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319557.ttnet.net.tr
[0] 58.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 59.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 60.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319560.ttnet.net.tr
[86400] 61.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319561.ttnet.net.tr
[0] 62.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 63.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 64.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319564.ttnet.net.tr
[86400] 65.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319565.ttnet.net.tr
[0] 66.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 67.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319567.ttnet.net.tr
[86400] 68.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319568.ttnet.net.tr
[0] 69.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 70.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 71.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 72.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319572.ttnet.net.tr
[0] 73.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 74.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 75.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 76.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 77.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 78.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319578.ttnet.net.tr
[0] 79.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 80.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 81.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 82.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 83.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 84.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319584.ttnet.net.tr
[86400] 85.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319585.ttnet.net.tr
[86400] 86.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319586.ttnet.net.tr
[0] 87.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 88.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 89.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319589.ttnet.net.tr
[86400] 90.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319590.ttnet.net.tr
[86400] 91.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319591.ttnet.net.tr
[86400] 92.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319592.ttnet.net.tr
[86400] 93.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319593.ttnet.net.tr
[86400] 94.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319594.ttnet.net.tr
[86400] 95.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319595.ttnet.net.tr
[0] 96.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 97.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319597.ttnet.net.tr
[86400] 98.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic8121319598.ttnet.net.tr
[0] 99.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 100.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195100.ttnet.net.tr
[0] 101.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 102.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195102.ttnet.net.tr
[0] 103.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 104.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 105.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 106.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195106.ttnet.net.tr
[86400] 107.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195107.ttnet.net.tr
[86400] 108.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195108.ttnet.net.tr
[0] 109.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 110.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195110.ttnet.net.tr
[86400] 111.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195111.ttnet.net.tr
[0] 112.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 113.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 114.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195114.ttnet.net.tr
[86400] 115.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195115.ttnet.net.tr
[86400] 116.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195116.ttnet.net.tr
[86400] 117.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195117.ttnet.net.tr
[0] 118.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 119.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195119.ttnet.net.tr
[86400] 120.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195120.ttnet.net.tr
[0] 121.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 122.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 123.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 124.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 125.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 126.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195126.ttnet.net.tr
[0] 127.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 128.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195128.ttnet.net.tr
[0] 129.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 130.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195130.ttnet.net.tr
[86400] 131.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195131.ttnet.net.tr
[0] 132.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 133.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195133.ttnet.net.tr
[86400] 134.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195134.ttnet.net.tr
[86400] 135.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195135.ttnet.net.tr
[0] 136.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 137.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195137.ttnet.net.tr
[0] 138.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 139.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195139.ttnet.net.tr
[0] 140.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 141.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195141.ttnet.net.tr
[86400] 142.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195142.ttnet.net.tr
[0] 143.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 144.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 145.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 146.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 147.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 148.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195148.ttnet.net.tr
[0] 149.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 150.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195150.ttnet.net.tr
[0] 151.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 152.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195152.ttnet.net.tr
[86400] 153.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195153.ttnet.net.tr
[86400] 154.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195154.ttnet.net.tr
[86400] 155.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195155.ttnet.net.tr
[86400] 156.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195156.ttnet.net.tr
[0] 157.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 158.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 159.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195159.ttnet.net.tr
[86400] 160.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195160.ttnet.net.tr
[86400] 161.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195161.ttnet.net.tr
[0] 162.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 163.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195163.ttnet.net.tr
[86400] 164.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195164.ttnet.net.tr
[86400] 165.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195165.ttnet.net.tr
[86400] 166.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195166.ttnet.net.tr
[0] 167.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 168.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 169.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 170.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 171.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195171.ttnet.net.tr
[0] 172.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 173.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195173.ttnet.net.tr
[86400] 174.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195174.ttnet.net.tr
[0] 175.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 176.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195176.ttnet.net.tr
[86400] 177.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195177.ttnet.net.tr
[0] 178.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 179.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 180.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 181.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 182.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 183.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 184.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 185.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195185.ttnet.net.tr
[0] 186.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 187.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 188.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 189.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195189.ttnet.net.tr
[0] 190.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 191.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 192.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 193.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 194.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195194.ttnet.net.tr
[0] 195.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 196.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 197.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 198.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 199.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 200.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 201.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195201.ttnet.net.tr
[0] 202.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 203.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 204.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195204.ttnet.net.tr
[86400] 205.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195205.ttnet.net.tr
[86400] 206.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195206.ttnet.net.tr
[86400] 207.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195207.ttnet.net.tr
[0] 208.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 209.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 210.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 211.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 212.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195212.ttnet.net.tr
[0] 213.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 214.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 215.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 216.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195216.ttnet.net.tr
[86400] 217.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195217.ttnet.net.tr
[86400] 218.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195218.ttnet.net.tr
[0] 219.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 220.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 221.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195221.ttnet.net.tr
[0] 222.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 223.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195223.ttnet.net.tr
[0] 224.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 225.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 226.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 227.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 228.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195228.ttnet.net.tr
[0] 229.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 230.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195230.ttnet.net.tr
[0] 231.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 232.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195232.ttnet.net.tr
[86400] 233.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195233.ttnet.net.tr
[86400] 234.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195234.ttnet.net.tr
[0] 235.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 236.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 237.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 238.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 239.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195239.ttnet.net.tr
[86400] 240.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195240.ttnet.net.tr
[86400] 241.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195241.ttnet.net.tr
[0] 242.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 243.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 244.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 245.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[0] 246.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 247.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195247.ttnet.net.tr
[0] 248.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 249.195.213.81.in-addr.arpa.: valid domain but no data of requested type
[86400] 250.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195250.ttnet.net.tr
[0] 251.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 252.195.213.81.in-addr.arpa.: temporary failure in name resolution
[86400] 253.195.213.81.in-addr.arpa. domain name pointer dsl.dynamic81213195253.ttnet.net.tr
[0] 254.195.213.81.in-addr.arpa.: temporary failure in name resolution
[0] 255.195.213.81.in-addr.arpa.: temporary failure in name resolution