To find the proxy server, do
Code:
traceroute yahoo.com
You will get something like
Code:
1 10.103.160.1 (10.103.160.1) 12.203 ms 8.079 ms 8.273 ms
2 atm2-0-622.tampflerl-rtr1.tampabay.rr.com (24.92.7.102) 10.090 ms 13.845 ms 9.076 ms
3 pos13-0.tampflerl-rtr3.tampabay.rr.com (65.32.8.2) 10.357 ms 9.325 ms 10.227 ms
4 pop1-tby-P0-1.atdn.net (66.185.136.169) 12.345 ms 12.330 ms 11.018 ms
5 bb1-tby-P0-0.atdn.net (66.185.136.160) 29.359 ms 9.782 ms 10.186 ms
6 bb2-atm-P7-0.atdn.net (66.185.152.245) 31.984 ms 28.426 ms 28.032 ms
7 pop1-atm-P1-0.atdn.net (66.185.147.195) 30.539 ms 26.842 ms 28.063 ms
8 if-8-0.har1.Atlanta3.teleglobe.net (64.86.9.1) 29.325 ms 27.303 ms 28.138 ms
9 if-0-1.core1.Atlanta3.Teleglobe.net (64.86.8.5) 34.604 ms 27.340 ms 27.978 ms
10 if-2-3.core1.Dallas3.teleglobe.net (66.198.1.17) 84.913 ms 82.347 ms 86.442 ms
11 if-0-0.core2.Dallas3.teleglobe.net (66.198.1.2) 92.306 ms 83.056 ms 82.458 ms
12 ix-5-0.core2.Dallas3.teleglobe.net (66.198.2.14) 83.983 ms 83.460 ms 83.014 ms
13 vl151.pat2.pao.yahoo.com (216.115.96.40) 87.979 ms 85.077 ms 84.645 ms
14 vl35.bas1-m.scd.yahoo.com (66.218.82.197) 85.300 ms vl16.bas1.scd.yahoo.com (66.218.64.146) 86.133 ms vl35.bas1-m.scd.yahoo.com (66.218.82.197) 85.498 ms
15 vl44.bas1-m.scd.yahoo.com (66.218.82.234) 85.835 ms UNKNOWN-66-218-82-230.yahoo.com (66.218.82.230) 85.422 ms vl44.bas1-m.scd.yahoo.com (66.218.82.234) 86.624 ms
The last local address is the proxy
local addresses start with 10 or 192.
Good Luck
-Joey