Host 0.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
1.224.59.128.in-addr.arpa domain name pointer cc-edge-1-vlan224-1.net.columbia.edu.
Host 2.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 3.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 4.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 5.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 6.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 7.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 8.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 9.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
10.224.59.128.in-addr.arpa domain name pointer asha-test-dpf.test.columbia.edu.
11.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-11.dyn.columbia.edu.
12.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-12.dyn.columbia.edu.
13.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-13.dyn.columbia.edu.
14.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-14.dyn.columbia.edu.
15.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-15.dyn.columbia.edu.
16.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-16.dyn.columbia.edu.
17.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-17.dyn.columbia.edu.
18.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-18.dyn.columbia.edu.
19.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-19.dyn.columbia.edu.
20.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-20.dyn.columbia.edu.
21.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-21.dyn.columbia.edu.
22.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-22.dyn.columbia.edu.
23.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-23.dyn.columbia.edu.
24.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-24.dyn.columbia.edu.
25.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-25.dyn.columbia.edu.
26.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-26.dyn.columbia.edu.
27.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-27.dyn.columbia.edu.
28.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-28.dyn.columbia.edu.
29.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-29.dyn.columbia.edu.
30.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-30.dyn.columbia.edu.
31.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-31.dyn.columbia.edu.
32.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-32.dyn.columbia.edu.
33.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-33.dyn.columbia.edu.
34.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-34.dyn.columbia.edu.
35.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-35.dyn.columbia.edu.
36.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-36.dyn.columbia.edu.
37.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-37.dyn.columbia.edu.
38.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-38.dyn.columbia.edu.
39.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-39.dyn.columbia.edu.
40.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-40.dyn.columbia.edu.
41.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-41.dyn.columbia.edu.
42.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-42.dyn.columbia.edu.
43.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-43.dyn.columbia.edu.
44.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-44.dyn.columbia.edu.
45.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-45.dyn.columbia.edu.
46.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-46.dyn.columbia.edu.
47.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-47.dyn.columbia.edu.
48.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-48.dyn.columbia.edu.
49.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-49.dyn.columbia.edu.
50.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-50.dyn.columbia.edu.
51.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-51.dyn.columbia.edu.
52.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-52.dyn.columbia.edu.
53.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-53.dyn.columbia.edu.
54.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-54.dyn.columbia.edu.
55.224.59.128.in-addr.arpa domain name pointer crew-hp-iiid.gym.columbia.edu.
56.224.59.128.in-addr.arpa domain name pointer ath-budget-2p.gym.columbia.edu.
57.224.59.128.in-addr.arpa domain name pointer strhp6m.gym.columbia.edu.
58.224.59.128.in-addr.arpa domain name pointer crew-hp3d.gym.columbia.edu.
59.224.59.128.in-addr.arpa domain name pointer sportsweb.gym.columbia.edu.
Host 60.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
61.224.59.128.in-addr.arpa domain name pointer hp4300.gym.columbia.edu.
62.224.59.128.in-addr.arpa domain name pointer hp-laserjet-2200dtn.gym.columbia.edu.
Host 63.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 64.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 65.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
66.224.59.128.in-addr.arpa domain name pointer ebner.gym.columbia.edu.
Host 67.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 68.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 69.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 70.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 71.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 72.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 73.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
74.224.59.128.in-addr.arpa domain name pointer ormsby1.gym.columbia.edu.
75.224.59.128.in-addr.arpa domain name pointer ftball2100.gym.columbia.edu.
76.224.59.128.in-addr.arpa domain name pointer dodfit-env.facil.columbia.edu.
Host 77.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 78.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 79.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 80.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 81.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 82.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 83.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 84.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
85.224.59.128.in-addr.arpa domain name pointer eichner.gym.columbia.edu.
Host 86.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 87.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 88.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 89.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 90.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 91.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 92.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 93.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
94.224.59.128.in-addr.arpa domain name pointer dpf-ts1.sas.columbia.edu.
95.224.59.128.in-addr.arpa domain name pointer headtrainer.gym.columbia.edu.
Host 96.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 97.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 98.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 99.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
100.224.59.128.in-addr.arpa domain name pointer rockey2.gym.columbia.edu.
101.224.59.128.in-addr.arpa domain name pointer ath-ticket-2100.gym.columbia.edu.
102.224.59.128.in-addr.arpa domain name pointer ath-comm-4100.gym.columbia.edu.
103.224.59.128.in-addr.arpa domain name pointer dodgegym400cnet01.atg.columbia.edu.
104.224.59.128.in-addr.arpa domain name pointer ath-football-hp4.gym.columbia.edu.
105.224.59.128.in-addr.arpa domain name pointer ath-admin-4mp.gym.columbia.edu.
106.224.59.128.in-addr.arpa domain name pointer ath-coaches-8150.gym.columbia.edu.
107.224.59.128.in-addr.arpa domain name pointer laptop2.gym.columbia.edu.
108.224.59.128.in-addr.arpa domain name pointer ath-wmbasket-2200.gym.columbia.edu.
109.224.59.128.in-addr.arpa domain name pointer dfc-idstation.sas.columbia.edu.
110.224.59.128.in-addr.arpa domain name pointer ath-squash-2200.gym.columbia.edu.
Host 111.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
112.224.59.128.in-addr.arpa domain name pointer ath-hp4600.gym.columbia.edu.
Host 113.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
114.224.59.128.in-addr.arpa domain name pointer bodine.gym.columbia.edu.
Host 115.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 116.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 117.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 118.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 119.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 120.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
121.224.59.128.in-addr.arpa domain name pointer rosie3.gym.columbia.edu.
Host 122.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 123.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 124.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
125.224.59.128.in-addr.arpa domain name pointer ingridthorpe.gym.columbia.edu.
Host 126.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 127.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 128.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 129.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
130.224.59.128.in-addr.arpa domain name pointer spencergo.gym.columbia.edu.
Host 131.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
132.224.59.128.in-addr.arpa domain name pointer loumontano.gym.columbia.edu.
133.224.59.128.in-addr.arpa domain name pointer dieterfick.gym.columbia.edu.
134.224.59.128.in-addr.arpa domain name pointer kevinmccar.gym.columbia.edu.
Host 135.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
136.224.59.128.in-addr.arpa domain name pointer lake.gym.columbia.edu.
Host 137.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 138.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 139.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 140.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 141.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
142.224.59.128.in-addr.arpa domain name pointer i-collins.gym.columbia.edu.
143.224.59.128.in-addr.arpa domain name pointer henry.gym.columbia.edu.
144.224.59.128.in-addr.arpa domain name pointer ticket.gym.columbia.edu.
145.224.59.128.in-addr.arpa domain name pointer phys-ed-hp4000.gym.columbia.edu.
Host 146.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
147.224.59.128.in-addr.arpa domain name pointer todd.gym.columbia.edu.
Host 148.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
149.224.59.128.in-addr.arpa domain name pointer lyman.gym.columbia.edu.
150.224.59.128.in-addr.arpa domain name pointer armond.gym.columbia.edu.
151.224.59.128.in-addr.arpa domain name pointer denise.gym.columbia.edu.
Host 152.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
153.224.59.128.in-addr.arpa domain name pointer gary.gym.columbia.edu.
Host 154.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 155.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 156.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 157.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 158.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 159.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 160.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 161.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
162.224.59.128.in-addr.arpa domain name pointer chris2.gym.columbia.edu.
163.224.59.128.in-addr.arpa domain name pointer langer1.gym.columbia.edu.
164.224.59.128.in-addr.arpa domain name pointer kirsten.gym.columbia.edu.
165.224.59.128.in-addr.arpa domain name pointer croze2.gym.columbia.edu.
166.224.59.128.in-addr.arpa domain name pointer reeves.gym.columbia.edu.
167.224.59.128.in-addr.arpa domain name pointer admn-wkstn1.gym.columbia.edu.
168.224.59.128.in-addr.arpa domain name pointer griffin2.gym.columbia.edu.
169.224.59.128.in-addr.arpa domain name pointer patenaude.gym.columbia.edu.
170.224.59.128.in-addr.arpa domain name pointer guthrie.gym.columbia.edu.
171.224.59.128.in-addr.arpa domain name pointer denise2.gym.columbia.edu.
Host 172.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
173.224.59.128.in-addr.arpa domain name pointer steinman2.gym.columbia.edu.
174.224.59.128.in-addr.arpa domain name pointer powermacintoshg3.gym.columbia.edu.
175.224.59.128.in-addr.arpa domain name pointer coachasst.gym.columbia.edu.
176.224.59.128.in-addr.arpa domain name pointer atimac1.gym.columbia.edu.
177.224.59.128.in-addr.arpa domain name pointer atimac2.gym.columbia.edu.
178.224.59.128.in-addr.arpa domain name pointer atimac0.gym.columbia.edu.
179.224.59.128.in-addr.arpa domain name pointer adminhp4050tn.gym.columbia.edu.
Host 180.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
181.224.59.128.in-addr.arpa domain name pointer hpdodge.gym.columbia.edu.
182.224.59.128.in-addr.arpa domain name pointer trainer2100tn.gym.columbia.edu.
183.224.59.128.in-addr.arpa domain name pointer adminsecretary.gym.columbia.edu.
184.224.59.128.in-addr.arpa domain name pointer physedchair.gym.columbia.edu.
185.224.59.128.in-addr.arpa domain name pointer lacrossehead.gym.columbia.edu.
186.224.59.128.in-addr.arpa domain name pointer finanadmin.gym.columbia.edu.
Host 187.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
188.224.59.128.in-addr.arpa domain name pointer athadminasst028.gym.columbia.edu.
189.224.59.128.in-addr.arpa domain name pointer athtennishead.gym.columbia.edu.
Host 190.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 191.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
192.224.59.128.in-addr.arpa domain name pointer athtickoffprom.gym.columbia.edu.
193.224.59.128.in-addr.arpa domain name pointer athtrkfldasshd.gym.columbia.edu.
194.224.59.128.in-addr.arpa domain name pointer athcdtrpertrn.gym.columbia.edu.
195.224.59.128.in-addr.arpa domain name pointer athftblsec.gym.columbia.edu.
Host 196.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
Host 197.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
198.224.59.128.in-addr.arpa domain name pointer jimg3.gym.columbia.edu.
Host 199.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)
200.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-200.dyn.columbia.edu.
201.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-201.dyn.columbia.edu.
202.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-202.dyn.columbia.edu.
203.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-203.dyn.columbia.edu.
204.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-204.dyn.columbia.edu.
205.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-205.dyn.columbia.edu.
206.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-206.dyn.columbia.edu.
207.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-207.dyn.columbia.edu.
208.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-208.dyn.columbia.edu.
209.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-209.dyn.columbia.edu.
210.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-210.dyn.columbia.edu.
211.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-211.dyn.columbia.edu.
212.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-212.dyn.columbia.edu.
213.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-213.dyn.columbia.edu.
214.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-214.dyn.columbia.edu.
215.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-215.dyn.columbia.edu.
216.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-216.dyn.columbia.edu.
217.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-217.dyn.columbia.edu.
218.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-218.dyn.columbia.edu.
219.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-219.dyn.columbia.edu.
220.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-220.dyn.columbia.edu.
221.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-221.dyn.columbia.edu.
222.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-222.dyn.columbia.edu.
223.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-223.dyn.columbia.edu.
224.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-224.dyn.columbia.edu.
225.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-225.dyn.columbia.edu.
226.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-226.dyn.columbia.edu.
227.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-227.dyn.columbia.edu.
228.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-228.dyn.columbia.edu.
229.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-229.dyn.columbia.edu.
230.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-230.dyn.columbia.edu.
231.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-231.dyn.columbia.edu.
232.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-232.dyn.columbia.edu.
233.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-233.dyn.columbia.edu.
234.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-234.dyn.columbia.edu.
235.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-235.dyn.columbia.edu.
236.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-236.dyn.columbia.edu.
237.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-237.dyn.columbia.edu.
238.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-238.dyn.columbia.edu.
239.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-239.dyn.columbia.edu.
240.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-240.dyn.columbia.edu.
241.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-241.dyn.columbia.edu.
242.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-242.dyn.columbia.edu.
243.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-243.dyn.columbia.edu.
244.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-244.dyn.columbia.edu.
245.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-245.dyn.columbia.edu.
246.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-246.dyn.columbia.edu.
247.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-247.dyn.columbia.edu.
248.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-248.dyn.columbia.edu.
249.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-249.dyn.columbia.edu.
250.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-250.dyn.columbia.edu.
251.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-251.dyn.columbia.edu.
252.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-252.dyn.columbia.edu.
253.224.59.128.in-addr.arpa domain name pointer dyn-128-59-224-253.dyn.columbia.edu.
254.224.59.128.in-addr.arpa domain name pointer dpf-b-1.net.columbia.edu.
Host 255.224.59.128.in-addr.arpa not found: 3(NXDOMAIN)