[3600] 0.18.219.217.in-addr.arpa. domain name pointer iut.ir [3600] 1.18.219.217.in-addr.arpa. domain name pointer sw-server.iut.ir [3600] 2.18.219.217.in-addr.arpa. domain name pointer 217-219-18-2.iut.ir [3600] 3.18.219.217.in-addr.arpa. domain name pointer acs-dialup.iut.ir [3600] 4.18.219.217.in-addr.arpa. domain name pointer 217-219-18-4.iut.ir [3600] 5.18.219.217.in-addr.arpa. domain name pointer av.iut.ac.ir [3600] 6.18.219.217.in-addr.arpa. domain name pointer 217-219-18-6.iut.ir [3600] 7.18.219.217.in-addr.arpa. domain name pointer 217-219-18-7.iut.ir [3600] 8.18.219.217.in-addr.arpa. domain name pointer monitor.iut.ir [3600] 9.18.219.217.in-addr.arpa. domain name pointer tofel-cach.iut.ir [3600] 10.18.219.217.in-addr.arpa. domain name pointer 217-219-18-10-iut.ir [3600] 11.18.219.217.in-addr.arpa. domain name pointer 217-219-18-11-iut-ac-ir [3600] 12.18.219.217.in-addr.arpa. domain name pointer monitor2.12.iut.ir [3600] 13.18.219.217.in-addr.arpa. domain name pointer eos.iut.ac.ir [3600] 14.18.219.217.in-addr.arpa. domain name pointer 217-219-18-14.iut.ir [3600] 15.18.219.217.in-addr.arpa. domain name pointer 217-219-18-15.iut.ir [3600] 16.18.219.217.in-addr.arpa. domain name pointer 217-219-18-16.iut.ir [3600] 17.18.219.217.in-addr.arpa. domain name pointer omidi [3600] 18.18.219.217.in-addr.arpa. domain name pointer omidi [3600] 19.18.219.217.in-addr.arpa. domain name pointer 217-219-18-19.iut.ir [3600] 20.18.219.217.in-addr.arpa. domain name pointer ns.iut.ir [3600] 21.18.219.217.in-addr.arpa. domain name pointer console.iut.ir [3600] 22.18.219.217.in-addr.arpa. domain name pointer 217-219-18-22.iut.ir [3600] 23.18.219.217.in-addr.arpa. domain name pointer proxy1.iut.ac.ir [3600] 24.18.219.217.in-addr.arpa. domain name pointer proxy3.iut.ac.ir [3600] 25.18.219.217.in-addr.arpa. domain name pointer backup-proxy.iut.ac.ir [3600] 26.18.219.217.in-addr.arpa. domain name pointer 217-219-18-26.iut.ir [3600] 27.18.219.217.in-addr.arpa. domain name pointer 217-219-18-27.iut.ir [3600] 28.18.219.217.in-addr.arpa. domain name pointer 217-219-18-28.iut.ir [3600] 29.18.219.217.in-addr.arpa. domain name pointer ivut.iut.ac.ir [3600] 30.18.219.217.in-addr.arpa. domain name pointer 217-219-18-30.iut.ir [3600] 31.18.219.217.in-addr.arpa. domain name pointer 217-219-18-31.iut.ir [3600] 32.18.219.217.in-addr.arpa. domain name pointer 217-219-18-32.iut.ir [3600] 33.18.219.217.in-addr.arpa. domain name pointer 217-219-18-33.iut.ir [3600] 34.18.219.217.in-addr.arpa. domain name pointer admin-server.iut.ir [3600] 35.18.219.217.in-addr.arpa. domain name pointer admin-server.iut.ir [3600] 36.18.219.217.in-addr.arpa. domain name pointer admin-server.iut.ir [3600] 37.18.219.217.in-addr.arpa. domain name pointer sina.iut.ir [3600] 38.18.219.217.in-addr.arpa. domain name pointer mon.iut.ac.ir [3600] 39.18.219.217.in-addr.arpa. domain name pointer 217-219-18-39.iut.ir [3600] 40.18.219.217.in-addr.arpa. domain name pointer 217-219-18-40.iut.ir [3600] 41.18.219.217.in-addr.arpa. domain name pointer tafda.org [3600] 42.18.219.217.in-addr.arpa. domain name pointer shahrak [3600] 43.18.219.217.in-addr.arpa. domain name pointer shahrak [3600] 44.18.219.217.in-addr.arpa. domain name pointer tafda.org [3600] 45.18.219.217.in-addr.arpa. domain name pointer econtent.iut.ac.ir [3600] 46.18.219.217.in-addr.arpa. domain name pointer subseard.iut.ac.ir [3600] 47.18.219.217.in-addr.arpa. domain name pointer reserved.iut.ir [3600] 48.18.219.217.in-addr.arpa. domain name pointer nourishing.iut.ac.ir [3600] 49.18.219.217.in-addr.arpa. domain name pointer 217-219-18-49.iut.ac.ir [3600] 50.18.219.217.in-addr.arpa. domain name pointer solar-monitor.iut.ir [3600] 51.18.219.217.in-addr.arpa. domain name pointer 217-219-18-51.iut.ir [3600] 52.18.219.217.in-addr.arpa. domain name pointer iut-daneshjooei.iut.ac.ir [3600] 53.18.219.217.in-addr.arpa. domain name pointer acrg.iut.ac.ir [3600] 54.18.219.217.in-addr.arpa. domain name pointer 217-219-18-54.iut.ir [3600] 55.18.219.217.in-addr.arpa. domain name pointer iutphone.iut.ac.ir [3600] 56.18.219.217.in-addr.arpa. domain name pointer phone.iut.ac.ir [3600] 57.18.219.217.in-addr.arpa. domain name pointer 217-219-18-57.iut.ir [3600] 58.18.219.217.in-addr.arpa. domain name pointer 217-219-18-58.iut.ir [3600] 59.18.219.217.in-addr.arpa. domain name pointer 217-219-18-59.iut.ir [3600] 60.18.219.217.in-addr.arpa. domain name pointer scc.iut.ac.ir [3600] 61.18.219.217.in-addr.arpa. domain name pointer malek.iut.ir [3600] 62.18.219.217.in-addr.arpa. domain name pointer malek.iut.ir [3600] 63.18.219.217.in-addr.arpa. domain name pointer malek.iut.ir [3600] 64.18.219.217.in-addr.arpa. domain name pointer eleaening.iut.ir [3600] 65.18.219.217.in-addr.arpa. domain name pointer elearning.iut.ir [3600] 66.18.219.217.in-addr.arpa. domain name pointer elearning.iut.ir [3600] 67.18.219.217.in-addr.arpa. domain name pointer 217-219-18-67.iut.ir [3600] 68.18.219.217.in-addr.arpa. domain name pointer 217-219-18-68.iut.ir [3600] 69.18.219.217.in-addr.arpa. domain name pointer testa.iut.ac.ir [3600] 70.18.219.217.in-addr.arpa. domain name pointer sadr.iut.ac.ir [3600] 71.18.219.217.in-addr.arpa. domain name pointer sadr.iut.ac.ir [3600] 72.18.219.217.in-addr.arpa. domain name pointer sadr.iut.ac.ir [3600] 73.18.219.217.in-addr.arpa. domain name pointer sadr.iut.ac.ir [3600] 74.18.219.217.in-addr.arpa. domain name pointer sadr.iut.ac.ir [3600] 75.18.219.217.in-addr.arpa. domain name pointer sadr.iut.ac.ir [3600] 76.18.219.217.in-addr.arpa. domain name pointer irimo.iut.ac.ir [3600] 77.18.219.217.in-addr.arpa. domain name pointer 217-219-18-77.iut.ir [3600] 78.18.219.217.in-addr.arpa. domain name pointer reserved.iut.ir [3600] 79.18.219.217.in-addr.arpa. domain name pointer 217-219-18-79.iut.ir [3600] 80.18.219.217.in-addr.arpa. domain name pointer backup-proxy.iut.ac.ir [3600] 81.18.219.217.in-addr.arpa. domain name pointer backup-proxy.iut.ac.ir [3600] 82.18.219.217.in-addr.arpa. domain name pointer proxy2.iut.ac.ir [3600] 83.18.219.217.in-addr.arpa. domain name pointer elearning.iut.ac.ir [3600] 84.18.219.217.in-addr.arpa. domain name pointer elearning.iut.ac.ir [3600] 85.18.219.217.in-addr.arpa. domain name pointer fm.iut.ir [3600] 86.18.219.217.in-addr.arpa. domain name pointer portal.iut.ac.ir [3600] 87.18.219.217.in-addr.arpa. domain name pointer vps-sadr.iut.ir [3600] 88.18.219.217.in-addr.arpa. domain name pointer vps-sadr.iut.ir [0] 89.18.219.217.in-addr.arpa.: domain name does not exist [3600] 90.18.219.217.in-addr.arpa. domain name pointer libmail.iut.ac.ir [3600] 91.18.219.217.in-addr.arpa. domain name pointer library.iut.ac.ir [3600] 92.18.219.217.in-addr.arpa. domain name pointer research.iut.ac.ir [3600] 93.18.219.217.in-addr.arpa. domain name pointer backup-lib.iut.ir [3600] 94.18.219.217.in-addr.arpa. domain name pointer library.iut.ac.ir [3600] 95.18.219.217.in-addr.arpa. domain name pointer CA.iut.ir [3600] 96.18.219.217.in-addr.arpa. domain name pointer 217-219-18-96.iut.ir [3600] 97.18.219.217.in-addr.arpa. domain name pointer vps-sadr.iut.ir [3600] 98.18.219.217.in-addr.arpa. domain name pointer 217-219-18-98.iut.ir [3600] 99.18.219.217.in-addr.arpa. domain name pointer 217-219-18-99.iut.ir [3600] 100.18.219.217.in-addr.arpa. domain name pointer 217-219-18-100.iut.ir [3600] 101.18.219.217.in-addr.arpa. domain name pointer 217-219-18-101.iut.ir [3600] 102.18.219.217.in-addr.arpa. domain name pointer 217-219-18-102.iut.ir [3600] 103.18.219.217.in-addr.arpa. domain name pointer 217-219-18-103.iut.ir [3600] 104.18.219.217.in-addr.arpa. domain name pointer 217-219-18-104.iut.ir [3600] 105.18.219.217.in-addr.arpa. domain name pointer 217-219-18-105.iut.ir [3600] 106.18.219.217.in-addr.arpa. domain name pointer 217-219-18-106.iut.ir [3600] 107.18.219.217.in-addr.arpa. domain name pointer 217-219-18-107.iut.ir [3600] 108.18.219.217.in-addr.arpa. domain name pointer 217-219-18-108.iut.ir [3600] 109.18.219.217.in-addr.arpa. domain name pointer 217-219-18-109.iut.ir [3600] 110.18.219.217.in-addr.arpa. domain name pointer 217-219-18-110.iut.ir [3600] 111.18.219.217.in-addr.arpa. domain name pointer hosting-server.iut.ac.ir [3600] 112.18.219.217.in-addr.arpa. domain name pointer hosting-server.iut.ac.ir [3600] 113.18.219.217.in-addr.arpa. domain name pointer vps.iut.ir [3600] 114.18.219.217.in-addr.arpa. domain name pointer vps.iut.ir [3600] 115.18.219.217.in-addr.arpa. domain name pointer vps.iut.ir [3600] 116.18.219.217.in-addr.arpa. domain name pointer vps.iut.ir [3600] 117.18.219.217.in-addr.arpa. domain name pointer contactus.iut.ac.ir technical.iut.ac.ir support.iut.ac.ir [3600] 118.18.219.217.in-addr.arpa. domain name pointer iscoweb.iut.ac.ir [3600] 119.18.219.217.in-addr.arpa. domain name pointer 217-219-18-119.iut.ir [3600] 120.18.219.217.in-addr.arpa. domain name pointer sems.iut.ac.ir [3600] 121.18.219.217.in-addr.arpa. domain name pointer 217-219-18-121.iut.ir [3600] 122.18.219.217.in-addr.arpa. domain name pointer ijpr.iut.ac.ir ejgcst.iut.ac.ir jstnar.iut.ac.ir [3600] 123.18.219.217.in-addr.arpa. domain name pointer karima-web.iut.ac.ir [3600] 124.18.219.217.in-addr.arpa. domain name pointer yektamoarragh.ir [3600] 125.18.219.217.in-addr.arpa. domain name pointer 217-219-18-125.iut.ir [3600] 126.18.219.217.in-addr.arpa. domain name pointer 217-219-18-126.iut.ir [3600] 127.18.219.217.in-addr.arpa. domain name pointer 217-219-18-127.iut.ir [3600] 128.18.219.217.in-addr.arpa. domain name pointer 217-219-18-128.iut.ir [3600] 129.18.219.217.in-addr.arpa. domain name pointer ece-swich.iut.ir [3600] 130.18.219.217.in-addr.arpa. domain name pointer ece.iut.ac.ir [3600] 131.18.219.217.in-addr.arpa. domain name pointer electdp.iut.ac.ir [3600] 132.18.219.217.in-addr.arpa. domain name pointer irc-ece.iut.ac.ir [3600] 133.18.219.217.in-addr.arpa. domain name pointer ece-conference.iut.ac.ir [3600] 134.18.219.217.in-addr.arpa. domain name pointer 217-219-18-134.iut.ir [3600] 135.18.219.217.in-addr.arpa. domain name pointer 217-219-18-135.iut.ir [3600] 136.18.219.217.in-addr.arpa. domain name pointer 217-219-18-136.iut.ir [3600] 137.18.219.217.in-addr.arpa. domain name pointer mech-switch.iut.ac.ir [3600] 138.18.219.217.in-addr.arpa. domain name pointer 217-219-18-138.iut.ir [3600] 139.18.219.217.in-addr.arpa. domain name pointer 217-219-18-139.iut.ir [3600] 140.18.219.217.in-addr.arpa. domain name pointer mech.iut.ac.ir [3600] 141.18.219.217.in-addr.arpa. domain name pointer ISME2005.iut.ac.ir [3600] 142.18.219.217.in-addr.arpa. domain name pointer 217-219-18-142.iut.ir [3600] 143.18.219.217.in-addr.arpa. domain name pointer 217-219-18-143.iut.ir [3600] 144.18.219.217.in-addr.arpa. domain name pointer 217-219-18-144.iut.ir [3600] 145.18.219.217.in-addr.arpa. domain name pointer phys-switch.ir [3600] 146.18.219.217.in-addr.arpa. domain name pointer 217-219-18-146.iut.ir [3600] 147.18.219.217.in-addr.arpa. domain name pointer hadip.iut.ac.ir [3600] 148.18.219.217.in-addr.arpa. domain name pointer 217-219-18-148.iut.ir [3600] 149.18.219.217.in-addr.arpa. domain name pointer lab-phys.iut.ac.ir [3600] 150.18.219.217.in-addr.arpa. domain name pointer physics.iut.ac.ir [3600] 151.18.219.217.in-addr.arpa. domain name pointer 217-219-18-151.iut.ir [3600] 152.18.219.217.in-addr.arpa. domain name pointer 217-219-18-152.iut.ir [3600] 153.18.219.217.in-addr.arpa. domain name pointer math-switch.iut.ac.ir [3600] 154.18.219.217.in-addr.arpa. domain name pointer mechdept.iut.ac.ir [3600] 155.18.219.217.in-addr.arpa. domain name pointer spsp7.iut.ac.ir [3600] 156.18.219.217.in-addr.arpa. domain name pointer iel.iut.ac.ir [3600] 157.18.219.217.in-addr.arpa. domain name pointer ece-research.iut.ac.ir [3600] 158.18.219.217.in-addr.arpa. domain name pointer 217-219-18-158.iut.ir [3600] 159.18.219.217.in-addr.arpa. domain name pointer 217-219-18-159.iut.ir [3600] 160.18.219.217.in-addr.arpa. domain name pointer 217-219-18-160.iut.ir [3600] 161.18.219.217.in-addr.arpa. domain name pointer civil-switch.iut.ac.ir [3600] 162.18.219.217.in-addr.arpa. domain name pointer civil.iut.ac.ir [3600] 163.18.219.217.in-addr.arpa. domain name pointer 217-219-18-163.iut.ir [3600] 164.18.219.217.in-addr.arpa. domain name pointer 217-219-18-164.iut.ir [3600] 165.18.219.217.in-addr.arpa. domain name pointer 217-219-18-165.iut.ir [3600] 166.18.219.217.in-addr.arpa. domain name pointer 217-219-18-166.iut.ir [3600] 167.18.219.217.in-addr.arpa. domain name pointer 217-219-18-167.iut.ir [3600] 168.18.219.217.in-addr.arpa. domain name pointer 217-219-18-168.iut.ir [3600] 169.18.219.217.in-addr.arpa. domain name pointer 217-219-18-169.iut.ir [3600] 170.18.219.217.in-addr.arpa. domain name pointer 217-219-18-170.iut.ir [3600] 171.18.219.217.in-addr.arpa. domain name pointer 217-219-18-171.iut.ir [3600] 172.18.219.217.in-addr.arpa. domain name pointer 217-219-18-172.iut.ir [3600] 173.18.219.217.in-addr.arpa. domain name pointer 217-219-18-173.iut.ir [3600] 174.18.219.217.in-addr.arpa. domain name pointer 217-219-18-174.iut.ir [3600] 175.18.219.217.in-addr.arpa. domain name pointer 217-219-18-175.iut.ir [3600] 176.18.219.217.in-addr.arpa. domain name pointer 217-219-18-176.iut.ir [3600] 177.18.219.217.in-addr.arpa. domain name pointer 217-219-18-177.iut.ir [3600] 178.18.219.217.in-addr.arpa. domain name pointer 217-219-18-178.iut.ir [3600] 179.18.219.217.in-addr.arpa. domain name pointer 217-219-18-179.iut.ir [3600] 180.18.219.217.in-addr.arpa. domain name pointer 217-219-18-180.iut.ir [3600] 181.18.219.217.in-addr.arpa. domain name pointer 217-219-18-181.iut.ir [3600] 182.18.219.217.in-addr.arpa. domain name pointer 217-219-18-182.iut.ir [3600] 183.18.219.217.in-addr.arpa. domain name pointer 217-219-18-183.iut.ir [3600] 184.18.219.217.in-addr.arpa. domain name pointer 217-219-18-184.iut.ir [3600] 185.18.219.217.in-addr.arpa. domain name pointer 217-219-18-185.iut.ir [3600] 186.18.219.217.in-addr.arpa. domain name pointer 217-219-18-186.iut.ir [3600] 187.18.219.217.in-addr.arpa. domain name pointer 217-219-18-187.iut.ir [3600] 188.18.219.217.in-addr.arpa. domain name pointer 217-219-18-188.iut.ir [3600] 189.18.219.217.in-addr.arpa. domain name pointer 217-219-18-189.iut.ir [3600] 190.18.219.217.in-addr.arpa. domain name pointer 217-219-18-190.iut.ir [3600] 191.18.219.217.in-addr.arpa. domain name pointer 217-219-18-191.iut.ir [3600] 192.18.219.217.in-addr.arpa. domain name pointer src.iut.ac.ir [3600] 193.18.219.217.in-addr.arpa. domain name pointer 217-219-18-193.iut.ir [3600] 194.18.219.217.in-addr.arpa. domain name pointer golestan.iut.ac.ir [3600] 195.18.219.217.in-addr.arpa. domain name pointer 217-219-18-195.iut.ir [3600] 196.18.219.217.in-addr.arpa. domain name pointer 217-219-18-196.iut.ir [3600] 197.18.219.217.in-addr.arpa. domain name pointer 217-219-18-197.iut.ir [3600] 198.18.219.217.in-addr.arpa. domain name pointer 217.219.18.iut.ac.ir [3600] 199.18.219.217.in-addr.arpa. domain name pointer 217-219-18-199.iut.ir [3600] 200.18.219.217.in-addr.arpa. domain name pointer 217-219-18-200.iut.ir [3600] 201.18.219.217.in-addr.arpa. domain name pointer 217-219-18-201.iut.ir [3600] 202.18.219.217.in-addr.arpa. domain name pointer 217-219-18-202.iut.ir [3600] 203.18.219.217.in-addr.arpa. domain name pointer eos.iut.ac.ir [3600] 204.18.219.217.in-addr.arpa. domain name pointer yekta-m.iut.ac.ir [3600] 205.18.219.217.in-addr.arpa. domain name pointer 217-219-18-205.iut.ir [3600] 206.18.219.217.in-addr.arpa. domain name pointer 217-219-18-206.iut.ir [3600] 207.18.219.217.in-addr.arpa. domain name pointer 217-219-18-207.iut.ir [3600] 208.18.219.217.in-addr.arpa. domain name pointer 217-219-18-208.iut.ir [3600] 209.18.219.217.in-addr.arpa. domain name pointer 217-219-18-209.iut.ir [3600] 210.18.219.217.in-addr.arpa. domain name pointer 217-219-18-210.iut.ir [3600] 211.18.219.217.in-addr.arpa. domain name pointer 217-219-18-211.iut.ir [3600] 212.18.219.217.in-addr.arpa. domain name pointer 217-219-18-212.iut.ir [3600] 213.18.219.217.in-addr.arpa. domain name pointer 217-219-18-213.iut.ir [3600] 214.18.219.217.in-addr.arpa. domain name pointer 217-219-18-214.iut.ir [3600] 215.18.219.217.in-addr.arpa. domain name pointer 217-219-18-215.iut.ir [3600] 216.18.219.217.in-addr.arpa. domain name pointer 217-219-18-216.iut.ir [3600] 217.18.219.217.in-addr.arpa. domain name pointer 217-219-18-217.iut.ir [3600] 218.18.219.217.in-addr.arpa. domain name pointer 217-219-18-218.iut.ir [3600] 219.18.219.217.in-addr.arpa. domain name pointer 217-219-18-219.iut.ir [3600] 220.18.219.217.in-addr.arpa. domain name pointer 217-219-18-220.iut.ir [3600] 221.18.219.217.in-addr.arpa. domain name pointer 217-219-18-221.iut.ir [3600] 222.18.219.217.in-addr.arpa. domain name pointer 217-219-18-222.iut.ir [3600] 223.18.219.217.in-addr.arpa. domain name pointer 217-219-18-223.iut.ir [3600] 224.18.219.217.in-addr.arpa. domain name pointer 217-219-18-224.iut.ir [3600] 225.18.219.217.in-addr.arpa. domain name pointer 217-219-18-225.iut.ir [3600] 226.18.219.217.in-addr.arpa. domain name pointer 217-219-18-226.iut.ir [3600] 227.18.219.217.in-addr.arpa. domain name pointer 217-219-18-227.iut.ir [3600] 228.18.219.217.in-addr.arpa. domain name pointer 217-219-18-228.iut.ir [3600] 229.18.219.217.in-addr.arpa. domain name pointer 217-219-18-229.iut.ir [3600] 230.18.219.217.in-addr.arpa. domain name pointer 217-219-18-230.iut.ir [3600] 231.18.219.217.in-addr.arpa. domain name pointer 217-219-18-231.iut.ir [3600] 232.18.219.217.in-addr.arpa. domain name pointer 217-219-18-232.iut.ir [3600] 233.18.219.217.in-addr.arpa. domain name pointer 217-219-18-233.iut.ir [3600] 234.18.219.217.in-addr.arpa. domain name pointer 217-219-18-234.iut.ir [3600] 235.18.219.217.in-addr.arpa. domain name pointer 217-219-18-235.iut.ir [3600] 236.18.219.217.in-addr.arpa. domain name pointer 217-219-18-236.iut.ir [3600] 237.18.219.217.in-addr.arpa. domain name pointer 217-219-18-237.iut.ir [3600] 238.18.219.217.in-addr.arpa. domain name pointer 217-219-18-238.iut.ir [3600] 239.18.219.217.in-addr.arpa. domain name pointer 217-219-18-239.iut.ir [3600] 240.18.219.217.in-addr.arpa. domain name pointer 217-219-18-240.iut.ir [3600] 241.18.219.217.in-addr.arpa. domain name pointer router0.iut.ac.ir [3600] 242.18.219.217.in-addr.arpa. domain name pointer router2.iut.ac.ir [3600] 243.18.219.217.in-addr.arpa. domain name pointer 217-219-18-243.iut.ir [3600] 244.18.219.217.in-addr.arpa. domain name pointer 217-219-18-244.iut.ir [3600] 245.18.219.217.in-addr.arpa. domain name pointer 217-219-18-245.iut.ir [3600] 246.18.219.217.in-addr.arpa. domain name pointer 217-219-18-246.iut.ir [3600] 247.18.219.217.in-addr.arpa. domain name pointer 217-219-18-247.iut.ir [3600] 248.18.219.217.in-addr.arpa. domain name pointer 217-219-18-248.iut.ir [3600] 249.18.219.217.in-addr.arpa. domain name pointer 217-219-18-249.iut.ir [3600] 250.18.219.217.in-addr.arpa. domain name pointer 217-219-18-250.iut.ir [3600] 251.18.219.217.in-addr.arpa. domain name pointer 217-219-18-251.iut.ir [3600] 252.18.219.217.in-addr.arpa. domain name pointer 217-219-18-252.iut.ir [3600] 253.18.219.217.in-addr.arpa. domain name pointer 217-219-18-253.iut.ir [3600] 254.18.219.217.in-addr.arpa. domain name pointer 217-219-18-254.iut.ir [0] 255.18.219.217.in-addr.arpa.: domain name does not exist