[0] 0.179.69.220.in-addr.arpa not found: 3(NXDOMAIN) [14400] 1.179.69.220.in-addr.arpa. domain name pointer v79-1.icu.ac.kr [14400] 2.179.69.220.in-addr.arpa. domain name pointer v79-2.icu.ac.kr [14400] 3.179.69.220.in-addr.arpa. domain name pointer v79-3.icu.ac.kr [14400] 4.179.69.220.in-addr.arpa. domain name pointer v79-4.icu.ac.kr [14400] 5.179.69.220.in-addr.arpa. domain name pointer v79-5.icu.ac.kr [14400] 6.179.69.220.in-addr.arpa. domain name pointer v79-6.icu.ac.kr [14400] 7.179.69.220.in-addr.arpa. domain name pointer v79-7.icu.ac.kr [14400] 8.179.69.220.in-addr.arpa. domain name pointer v79-8.icu.ac.kr [14400] 9.179.69.220.in-addr.arpa. domain name pointer v79-9.icu.ac.kr [14400] 10.179.69.220.in-addr.arpa. domain name pointer v79-10.icu.ac.kr [14400] 11.179.69.220.in-addr.arpa. domain name pointer v79-11.icu.ac.kr [14400] 12.179.69.220.in-addr.arpa. domain name pointer v79-12.icu.ac.kr [14400] 13.179.69.220.in-addr.arpa. domain name pointer v79-13.icu.ac.kr [14400] 14.179.69.220.in-addr.arpa. domain name pointer v79-14.icu.ac.kr [14400] 15.179.69.220.in-addr.arpa. domain name pointer v79-15.icu.ac.kr [14400] 16.179.69.220.in-addr.arpa. domain name pointer v79-16.icu.ac.kr [14400] 17.179.69.220.in-addr.arpa. domain name pointer v79-17.icu.ac.kr [14400] 18.179.69.220.in-addr.arpa. domain name pointer v79-18.icu.ac.kr [14400] 19.179.69.220.in-addr.arpa. domain name pointer v79-19.icu.ac.kr [14400] 20.179.69.220.in-addr.arpa. domain name pointer v79-20.icu.ac.kr [14400] 21.179.69.220.in-addr.arpa. domain name pointer v79-21.icu.ac.kr [14400] 22.179.69.220.in-addr.arpa. domain name pointer v79-22.icu.ac.kr [14400] 23.179.69.220.in-addr.arpa. domain name pointer v79-23.icu.ac.kr [14400] 24.179.69.220.in-addr.arpa. domain name pointer v79-24.icu.ac.kr [14400] 25.179.69.220.in-addr.arpa. domain name pointer v79-25.icu.ac.kr [14400] 26.179.69.220.in-addr.arpa. domain name pointer v79-26.icu.ac.kr [14400] 27.179.69.220.in-addr.arpa. domain name pointer v79-27.icu.ac.kr [14400] 28.179.69.220.in-addr.arpa. domain name pointer parents.icu.ac.kr [14400] 29.179.69.220.in-addr.arpa. domain name pointer v79-29.icu.ac.kr [14400] 30.179.69.220.in-addr.arpa. domain name pointer A605-prn.icu.ac.kr [14400] 31.179.69.220.in-addr.arpa. domain name pointer webzine.icu.ac.kr [14400] 32.179.69.220.in-addr.arpa. domain name pointer v79-32.icu.ac.kr [14400] 33.179.69.220.in-addr.arpa. domain name pointer v79-33.icu.ac.kr [14400] 34.179.69.220.in-addr.arpa. domain name pointer v79-34.icu.ac.kr [14400] 35.179.69.220.in-addr.arpa. domain name pointer v79-35.icu.ac.kr [14400] 36.179.69.220.in-addr.arpa. domain name pointer v79-36.icu.ac.kr [14400] 37.179.69.220.in-addr.arpa. domain name pointer v79-37.icu.ac.kr [14400] 38.179.69.220.in-addr.arpa. domain name pointer v79-38.icu.ac.kr [14400] 39.179.69.220.in-addr.arpa. domain name pointer v79-39.icu.ac.kr [14400] 40.179.69.220.in-addr.arpa. domain name pointer v79-40.icu.ac.kr [14400] 41.179.69.220.in-addr.arpa. domain name pointer v79-41.icu.ac.kr [14400] 42.179.69.220.in-addr.arpa. domain name pointer v79-42.icu.ac.kr [14400] 43.179.69.220.in-addr.arpa. domain name pointer v79-43.icu.ac.kr [14400] 44.179.69.220.in-addr.arpa. domain name pointer v79-44.icu.ac.kr [14400] 45.179.69.220.in-addr.arpa. domain name pointer v79-45.icu.ac.kr [14400] 46.179.69.220.in-addr.arpa. domain name pointer v79-46.icu.ac.kr [14400] 47.179.69.220.in-addr.arpa. domain name pointer v79-47.icu.ac.kr [14400] 48.179.69.220.in-addr.arpa. domain name pointer v79-48.icu.ac.kr [14400] 49.179.69.220.in-addr.arpa. domain name pointer v79-49.icu.ac.kr [14400] 50.179.69.220.in-addr.arpa. domain name pointer v79-50.icu.ac.kr [14400] 51.179.69.220.in-addr.arpa. domain name pointer v79-51.icu.ac.kr [14400] 52.179.69.220.in-addr.arpa. domain name pointer v79-52.icu.ac.kr [14400] 53.179.69.220.in-addr.arpa. domain name pointer v79-53.icu.ac.kr [14400] 54.179.69.220.in-addr.arpa. domain name pointer v79-54.icu.ac.kr [14400] 55.179.69.220.in-addr.arpa. domain name pointer v79-55.icu.ac.kr [14400] 56.179.69.220.in-addr.arpa. domain name pointer v79-56.icu.ac.kr [14400] 57.179.69.220.in-addr.arpa. domain name pointer v79-57.icu.ac.kr [14400] 58.179.69.220.in-addr.arpa. domain name pointer v79-58.icu.ac.kr [14400] 59.179.69.220.in-addr.arpa. domain name pointer v79-59.icu.ac.kr [14400] 60.179.69.220.in-addr.arpa. domain name pointer v79-60.icu.ac.kr [14400] 61.179.69.220.in-addr.arpa. domain name pointer v79-61.icu.ac.kr [14400] 62.179.69.220.in-addr.arpa. domain name pointer v79-62.icu.ac.kr [14400] 63.179.69.220.in-addr.arpa. domain name pointer v79-63.icu.ac.kr [14400] 64.179.69.220.in-addr.arpa. domain name pointer v79-64.icu.ac.kr [14400] 65.179.69.220.in-addr.arpa. domain name pointer v79-65.icu.ac.kr [14400] 66.179.69.220.in-addr.arpa. domain name pointer v79-66.icu.ac.kr [14400] 67.179.69.220.in-addr.arpa. domain name pointer v79-67.icu.ac.kr [14400] 68.179.69.220.in-addr.arpa. domain name pointer v79-68.icu.ac.kr [14400] 69.179.69.220.in-addr.arpa. domain name pointer v79-69.icu.ac.kr [14400] 70.179.69.220.in-addr.arpa. domain name pointer v79-70.icu.ac.kr [14400] 71.179.69.220.in-addr.arpa. domain name pointer v79-71.icu.ac.kr [14400] 72.179.69.220.in-addr.arpa. domain name pointer v79-72.icu.ac.kr [14400] 73.179.69.220.in-addr.arpa. domain name pointer v79-73.icu.ac.kr [14400] 74.179.69.220.in-addr.arpa. domain name pointer v79-74.icu.ac.kr [14400] 75.179.69.220.in-addr.arpa. domain name pointer v79-75.icu.ac.kr [14400] 76.179.69.220.in-addr.arpa. domain name pointer v79-76.icu.ac.kr [14400] 77.179.69.220.in-addr.arpa. domain name pointer v79-77.icu.ac.kr [14400] 78.179.69.220.in-addr.arpa. domain name pointer v79-78.icu.ac.kr [14400] 79.179.69.220.in-addr.arpa. domain name pointer v79-79.icu.ac.kr [14400] 80.179.69.220.in-addr.arpa. domain name pointer v79-80.icu.ac.kr [14400] 81.179.69.220.in-addr.arpa. domain name pointer v79-81.icu.ac.kr [14400] 82.179.69.220.in-addr.arpa. domain name pointer v79-82.icu.ac.kr [14400] 83.179.69.220.in-addr.arpa. domain name pointer v79-83.icu.ac.kr [14400] 84.179.69.220.in-addr.arpa. domain name pointer v79-84.icu.ac.kr [14400] 85.179.69.220.in-addr.arpa. domain name pointer v79-85.icu.ac.kr [14400] 86.179.69.220.in-addr.arpa. domain name pointer v79-86.icu.ac.kr [14400] 87.179.69.220.in-addr.arpa. domain name pointer v79-87.icu.ac.kr [14400] 88.179.69.220.in-addr.arpa. domain name pointer v79-88.icu.ac.kr [14400] 89.179.69.220.in-addr.arpa. domain name pointer v79-89.icu.ac.kr [14400] 90.179.69.220.in-addr.arpa. domain name pointer v79-90.icu.ac.kr [14400] 91.179.69.220.in-addr.arpa. domain name pointer v79-91.icu.ac.kr [14400] 92.179.69.220.in-addr.arpa. domain name pointer v79-92.icu.ac.kr [14400] 93.179.69.220.in-addr.arpa. domain name pointer v79-93.icu.ac.kr [14400] 94.179.69.220.in-addr.arpa. domain name pointer v79-94.icu.ac.kr [14400] 95.179.69.220.in-addr.arpa. domain name pointer v79-95.icu.ac.kr [14400] 96.179.69.220.in-addr.arpa. domain name pointer v79-96.icu.ac.kr [14400] 97.179.69.220.in-addr.arpa. domain name pointer v79-97.icu.ac.kr [14400] 98.179.69.220.in-addr.arpa. domain name pointer v79-98.icu.ac.kr [14400] 99.179.69.220.in-addr.arpa. domain name pointer v79-99.icu.ac.kr [14400] 100.179.69.220.in-addr.arpa. domain name pointer v79-100.icu.ac.kr [14400] 101.179.69.220.in-addr.arpa. domain name pointer v79-101.icu.ac.kr [14400] 102.179.69.220.in-addr.arpa. domain name pointer v79-102.icu.ac.kr [14400] 103.179.69.220.in-addr.arpa. domain name pointer v79-103.icu.ac.kr [14400] 104.179.69.220.in-addr.arpa. domain name pointer v79-104.icu.ac.kr [14400] 105.179.69.220.in-addr.arpa. domain name pointer v79-105.icu.ac.kr [14400] 106.179.69.220.in-addr.arpa. domain name pointer v79-106.icu.ac.kr [14400] 107.179.69.220.in-addr.arpa. domain name pointer v79-107.icu.ac.kr [14400] 108.179.69.220.in-addr.arpa. domain name pointer v79-108.icu.ac.kr [14400] 109.179.69.220.in-addr.arpa. domain name pointer v79-109.icu.ac.kr [14400] 110.179.69.220.in-addr.arpa. domain name pointer v79-110.icu.ac.kr [14400] 111.179.69.220.in-addr.arpa. domain name pointer v79-111.icu.ac.kr [14400] 112.179.69.220.in-addr.arpa. domain name pointer v79-112.icu.ac.kr [14400] 113.179.69.220.in-addr.arpa. domain name pointer v79-113.icu.ac.kr [14400] 114.179.69.220.in-addr.arpa. domain name pointer v79-114.icu.ac.kr [14400] 115.179.69.220.in-addr.arpa. domain name pointer v79-115.icu.ac.kr [14400] 116.179.69.220.in-addr.arpa. domain name pointer v79-116.icu.ac.kr [14400] 117.179.69.220.in-addr.arpa. domain name pointer v79-117.icu.ac.kr [14400] 118.179.69.220.in-addr.arpa. domain name pointer v79-118.icu.ac.kr [14400] 119.179.69.220.in-addr.arpa. domain name pointer v79-119.icu.ac.kr [14400] 120.179.69.220.in-addr.arpa. domain name pointer v79-120.icu.ac.kr [14400] 121.179.69.220.in-addr.arpa. domain name pointer v79-121.icu.ac.kr [14400] 122.179.69.220.in-addr.arpa. domain name pointer v79-122.icu.ac.kr [14400] 123.179.69.220.in-addr.arpa. domain name pointer v79-123.icu.ac.kr [14400] 124.179.69.220.in-addr.arpa. domain name pointer v79-124.icu.ac.kr [14400] 125.179.69.220.in-addr.arpa. domain name pointer v79-125.icu.ac.kr [14400] 126.179.69.220.in-addr.arpa. domain name pointer v79-126.icu.ac.kr [14400] 127.179.69.220.in-addr.arpa. domain name pointer v79-127.icu.ac.kr [14400] 128.179.69.220.in-addr.arpa. domain name pointer v79-128.icu.ac.kr [14400] 129.179.69.220.in-addr.arpa. domain name pointer v79-129.icu.ac.kr [14400] 130.179.69.220.in-addr.arpa. domain name pointer v79-130.icu.ac.kr [14400] 131.179.69.220.in-addr.arpa. domain name pointer v79-131.icu.ac.kr [14400] 132.179.69.220.in-addr.arpa. domain name pointer v79-132.icu.ac.kr [14400] 133.179.69.220.in-addr.arpa. domain name pointer v79-133.icu.ac.kr [14400] 134.179.69.220.in-addr.arpa. domain name pointer v79-134.icu.ac.kr [14400] 135.179.69.220.in-addr.arpa. domain name pointer v79-135.icu.ac.kr [14400] 136.179.69.220.in-addr.arpa. domain name pointer v79-136.icu.ac.kr [14400] 137.179.69.220.in-addr.arpa. domain name pointer v79-137.icu.ac.kr [14400] 138.179.69.220.in-addr.arpa. domain name pointer v79-138.icu.ac.kr [14400] 139.179.69.220.in-addr.arpa. domain name pointer v79-139.icu.ac.kr [14400] 140.179.69.220.in-addr.arpa. domain name pointer v79-140.icu.ac.kr [14400] 141.179.69.220.in-addr.arpa. domain name pointer v79-141.icu.ac.kr [14400] 142.179.69.220.in-addr.arpa. domain name pointer v79-142.icu.ac.kr [14400] 143.179.69.220.in-addr.arpa. domain name pointer v79-143.icu.ac.kr [14400] 144.179.69.220.in-addr.arpa. domain name pointer v79-144.icu.ac.kr [14400] 145.179.69.220.in-addr.arpa. domain name pointer v79-145.icu.ac.kr [14400] 146.179.69.220.in-addr.arpa. domain name pointer v79-146.icu.ac.kr [14400] 147.179.69.220.in-addr.arpa. domain name pointer v79-147.icu.ac.kr [14400] 148.179.69.220.in-addr.arpa. domain name pointer v79-148.icu.ac.kr [14400] 149.179.69.220.in-addr.arpa. domain name pointer v79-149.icu.ac.kr [14400] 150.179.69.220.in-addr.arpa. domain name pointer v79-150.icu.ac.kr [14400] 151.179.69.220.in-addr.arpa. domain name pointer v79-151.icu.ac.kr [14400] 152.179.69.220.in-addr.arpa. domain name pointer v79-152.icu.ac.kr [14400] 153.179.69.220.in-addr.arpa. domain name pointer v79-153.icu.ac.kr [14400] 154.179.69.220.in-addr.arpa. domain name pointer v79-154.icu.ac.kr [14400] 155.179.69.220.in-addr.arpa. domain name pointer v79-155.icu.ac.kr [14400] 156.179.69.220.in-addr.arpa. domain name pointer v79-156.icu.ac.kr [14400] 157.179.69.220.in-addr.arpa. domain name pointer v79-157.icu.ac.kr [14400] 158.179.69.220.in-addr.arpa. domain name pointer v79-158.icu.ac.kr [14400] 159.179.69.220.in-addr.arpa. domain name pointer v79-159.icu.ac.kr [14400] 160.179.69.220.in-addr.arpa. domain name pointer v79-160.icu.ac.kr [14400] 161.179.69.220.in-addr.arpa. domain name pointer v79-161.icu.ac.kr [14400] 162.179.69.220.in-addr.arpa. domain name pointer v79-162.icu.ac.kr [14400] 163.179.69.220.in-addr.arpa. domain name pointer v79-163.icu.ac.kr [14400] 164.179.69.220.in-addr.arpa. domain name pointer v79-164.icu.ac.kr [14400] 165.179.69.220.in-addr.arpa. domain name pointer v79-165.icu.ac.kr [14400] 166.179.69.220.in-addr.arpa. domain name pointer v79-166.icu.ac.kr [14400] 167.179.69.220.in-addr.arpa. domain name pointer v79-167.icu.ac.kr [14400] 168.179.69.220.in-addr.arpa. domain name pointer v79-168.icu.ac.kr [14400] 169.179.69.220.in-addr.arpa. domain name pointer v79-169.icu.ac.kr [14400] 170.179.69.220.in-addr.arpa. domain name pointer v79-170.icu.ac.kr [14400] 171.179.69.220.in-addr.arpa. domain name pointer v79-171.icu.ac.kr [14400] 172.179.69.220.in-addr.arpa. domain name pointer v79-172.icu.ac.kr [14400] 173.179.69.220.in-addr.arpa. domain name pointer v79-173.icu.ac.kr [14400] 174.179.69.220.in-addr.arpa. domain name pointer v79-174.icu.ac.kr [14400] 175.179.69.220.in-addr.arpa. domain name pointer v79-175.icu.ac.kr [14400] 176.179.69.220.in-addr.arpa. domain name pointer v79-176.icu.ac.kr [14400] 177.179.69.220.in-addr.arpa. domain name pointer v79-177.icu.ac.kr [14400] 178.179.69.220.in-addr.arpa. domain name pointer v79-178.icu.ac.kr [14400] 179.179.69.220.in-addr.arpa. domain name pointer v79-179.icu.ac.kr [14400] 180.179.69.220.in-addr.arpa. domain name pointer v79-180.icu.ac.kr [14400] 181.179.69.220.in-addr.arpa. domain name pointer v79-181.icu.ac.kr [14400] 182.179.69.220.in-addr.arpa. domain name pointer v79-182.icu.ac.kr [14400] 183.179.69.220.in-addr.arpa. domain name pointer v79-183.icu.ac.kr [14400] 184.179.69.220.in-addr.arpa. domain name pointer v79-184.icu.ac.kr [14400] 185.179.69.220.in-addr.arpa. domain name pointer v79-185.icu.ac.kr [14400] 186.179.69.220.in-addr.arpa. domain name pointer v79-186.icu.ac.kr [14400] 187.179.69.220.in-addr.arpa. domain name pointer v79-187.icu.ac.kr [14400] 188.179.69.220.in-addr.arpa. domain name pointer v79-188.icu.ac.kr [14400] 189.179.69.220.in-addr.arpa. domain name pointer v79-189.icu.ac.kr [14400] 190.179.69.220.in-addr.arpa. domain name pointer v79-190.icu.ac.kr [14400] 191.179.69.220.in-addr.arpa. domain name pointer v79-191.icu.ac.kr [14400] 192.179.69.220.in-addr.arpa. domain name pointer v79-192.icu.ac.kr [14400] 193.179.69.220.in-addr.arpa. domain name pointer v79-193.icu.ac.kr [14400] 194.179.69.220.in-addr.arpa. domain name pointer v79-194.icu.ac.kr [14400] 195.179.69.220.in-addr.arpa. domain name pointer v79-195.icu.ac.kr [14400] 196.179.69.220.in-addr.arpa. domain name pointer v79-196.icu.ac.kr [14400] 197.179.69.220.in-addr.arpa. domain name pointer v79-197.icu.ac.kr [14400] 198.179.69.220.in-addr.arpa. domain name pointer v79-198.icu.ac.kr [14400] 199.179.69.220.in-addr.arpa. domain name pointer v79-199.icu.ac.kr [14400] 200.179.69.220.in-addr.arpa. domain name pointer v79-200.icu.ac.kr [14400] 201.179.69.220.in-addr.arpa. domain name pointer v79-201.icu.ac.kr [14400] 202.179.69.220.in-addr.arpa. domain name pointer v79-202.icu.ac.kr [14400] 203.179.69.220.in-addr.arpa. domain name pointer v79-203.icu.ac.kr [14400] 204.179.69.220.in-addr.arpa. domain name pointer v79-204.icu.ac.kr [14400] 205.179.69.220.in-addr.arpa. domain name pointer v79-205.icu.ac.kr [14400] 206.179.69.220.in-addr.arpa. domain name pointer v79-206.icu.ac.kr [14400] 207.179.69.220.in-addr.arpa. domain name pointer v79-207.icu.ac.kr [14400] 208.179.69.220.in-addr.arpa. domain nam255.179.69.220.in-addr.arpa.: domain name does not exist [14400] 209.179.69.220.in-addr.arpa. domain name pointer v79-209.icu.ac.kr [14400] 210.179.69.220.in-addr.arpa. domain name pointer v79-210.icu.ac.kr [14400] 211.179.69.220.in-addr.arpa. domain name pointer v79-211.icu.ac.kr [14400] 212.179.69.220.in-addr.arpa. domain name pointer v79-212.icu.ac.kr [14400] 213.179.69.220.in-addr.arpa. domain name pointer v79-213.icu.ac.kr [14400] 214.179.69.220.in-addr.arpa. domain name pointer v79-214.icu.ac.kr [14400] 215.179.69.220.in-addr.arpa. domain name pointer v79-215.icu.ac.kr [14400] 216.179.69.220.in-addr.arpa. domain name pointer v79-216.icu.ac.kr [14400] 217.179.69.220.in-addr.arpa. domain name pointer v79-217.icu.ac.kr [14400] 218.179.69.220.in-addr.arpa. domain name pointer v79-218.icu.ac.kr [14400] 219.179.69.220.in-addr.arpa. domain name pointer v79-219.icu.ac.kr [14400] 220.179.69.220.in-addr.arpa. domain name pointer v79-220.icu.ac.kr [14400] 221.179.69.220.in-addr.arpa. domain name pointer v79-221.icu.ac.kr [14400] 222.179.69.220.in-addr.arpa. domain name pointer v79-222.icu.ac.kr [14400] 223.179.69.220.in-addr.arpa. domain name pointer v79-223.icu.ac.kr [14400] 224.179.69.220.in-addr.arpa. domain name pointer v79-224.icu.ac.kr [14400] 225.179.69.220.in-addr.arpa. domain name pointer v79-225.icu.ac.kr [14400] 226.179.69.220.in-addr.arpa. domain name pointer v79-226.icu.ac.kr [14400] 227.179.69.220.in-addr.arpa. domain name pointer v79-227.icu.ac.kr [14400] 228.179.69.220.in-addr.arpa. domain name pointer v79-228.icu.ac.kr [14400] 229.179.69.220.in-addr.arpa. domain name pointer v79-229.icu.ac.kr [14400] 230.179.69.220.in-addr.arpa. domain name pointer v79-230.icu.ac.kr [14400] 231.179.69.220.in-addr.arpa. domain name pointer v79-231.icu.ac.kr [14400] 232.179.69.220.in-addr.arpa. domain name pointer v79-232.icu.ac.kr [14400] 233.179.69.220.in-addr.arpa. domain name pointer v79-233.icu.ac.kr [14400] 234.179.69.220.in-addr.arpa. domain name pointer v79-234.icu.ac.kr [14400] 235.179.69.220.in-addr.arpa. domain name pointer v79-235.icu.ac.kr [14400] 236.179.69.220.in-addr.arpa. domain name pointer v79-236.icu.ac.kr [14400] 237.179.69.220.in-addr.arpa. domain name pointer v79-237.icu.ac.kr [14400] 238.179.69.220.in-addr.arpa. domain name pointer v79-238.icu.ac.kr [14400] 239.179.69.220.in-addr.arpa. domain name pointer v79-239.icu.ac.kr [14400] 240.179.69.220.in-addr.arpa. domain name pointer v79-240.icu.ac.kr [14400] 241.179.69.220.in-addr.arpa. domain name pointer v79-241.icu.ac.kr [14400] 242.179.69.220.in-addr.arpa. domain name pointer v79-242.icu.ac.kr [14400] 243.179.69.220.in-addr.arpa. domain name pointer v79-243.icu.ac.kr [14400] 244.179.69.220.in-addr.arpa. domain name pointer v79-244.icu.ac.kr [14400] 245.179.69.220.in-addr.arpa. domain name pointer v79-245.icu.ac.kr [14400] 246.179.69.220.in-addr.arpa. domain name pointer v79-246.icu.ac.kr [14400] 247.179.69.220.in-addr.arpa. domain name pointer v79-247.icu.ac.kr [14400] 248.179.69.220.in-addr.arpa. domain name pointer v79-248.icu.ac.kr [14400] 249.179.69.220.in-addr.arpa. domain name pointer v79-249.icu.ac.kr [14400] 250.179.69.220.in-addr.arpa. domain name pointer v79-250.icu.ac.kr [14400] 251.179.69.220.in-addr.arpa. domain name pointer v79-251.icu.ac.kr [14400] 252.179.69.220.in-addr.arpa. domain name pointer v79-252.icu.ac.kr [14400] 253.179.69.220.in-addr.arpa. domain name pointer v79-253.icu.ac.kr [14400] 254.179.69.220.in-addr.arpa. domain name pointer v79-254.icu.ac.kr [0] 255.179.69.220.in-addr.arpa not found: 3(NXDOMAIN)