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Old 07-07-2010, 12:00 PM   #1
Francis
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Default Best free public DNS server?


I need your thoughts and experience in choosing the right public DNS server.

Well very recently, my ISP's native nameserver got bugged up and now it's acting very slowly -- I've made this conclusion since the dl/ul rates are still the same as before, but the Waiting for www.website.com status in the browser's toolbar is longer and more prominent now. Also takes longer to resolve un-cached web pages and websites.

So far I've tried Google's Public DNS, the 8.8.8.8 ones. They didn't solve the problem.

Neither did OpenDNS nor DNSAdvantage.

So any other suggestion? Or could this be not a case of DNS server in reality?
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Old 07-07-2010, 12:20 PM   #2
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Default Re: Best free public DNS server?

ping/tracert OpenDNS.
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Old 07-07-2010, 12:34 PM   #3
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Default Re: Best free public DNS server?

Code:
C:\Users\Francis>ping opendns.com

Pinging opendns.com [208.69.38.150] with 32 bytes of data:
Request timed out.
Reply from 208.69.38.150: bytes=32 time=272ms TTL=45
Reply from 208.69.38.150: bytes=32 time=247ms TTL=45
Reply from 208.69.38.150: bytes=32 time=230ms TTL=45

Ping statistics for 208.69.38.150:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 230ms, Maximum = 272ms, Average = 249ms

C:\Users\Francis>
Code:
C:\Users\Francis>ping 208.67.222.222

Pinging 208.67.222.222 with 32 bytes of data:
Reply from 208.67.222.222: bytes=32 time=302ms TTL=43
Reply from 208.67.222.222: bytes=32 time=291ms TTL=43
Reply from 208.67.222.222: bytes=32 time=291ms TTL=43
Reply from 208.67.222.222: bytes=32 time=285ms TTL=43

Ping statistics for 208.67.222.222:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 285ms, Maximum = 302ms, Average = 292ms

C:\Users\Francis>
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Old 07-07-2010, 02:36 PM   #4
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Default Re: Best free public DNS server?

Try testing with Namebench
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Old 07-07-2010, 07:00 PM   #5
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Default Re: Best free public DNS server?

Quote:
Originally Posted by Francis View Post
Code:
C:\Users\Francis>ping opendns.com

Pinging opendns.com [208.69.38.150] with 32 bytes of data:
Request timed out.
Reply from 208.69.38.150: bytes=32 time=272ms TTL=45
Reply from 208.69.38.150: bytes=32 time=247ms TTL=45
Reply from 208.69.38.150: bytes=32 time=230ms TTL=45

Ping statistics for 208.69.38.150:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 230ms, Maximum = 272ms, Average = 249ms

C:\Users\Francis>
Code:
C:\Users\Francis>ping 208.67.222.222

Pinging 208.67.222.222 with 32 bytes of data:
Reply from 208.67.222.222: bytes=32 time=302ms TTL=43
Reply from 208.67.222.222: bytes=32 time=291ms TTL=43
Reply from 208.67.222.222: bytes=32 time=291ms TTL=43
Reply from 208.67.222.222: bytes=32 time=285ms TTL=43

Ping statistics for 208.67.222.222:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 285ms, Maximum = 302ms, Average = 292ms

C:\Users\Francis>
hehe.. i meant their DNS IPs. not webserver IP.
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Old 07-09-2010, 12:04 PM   #6
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Default Re: Best free public DNS server?

Look at the second one, it's their primary DNS server

@OMG: I did, and it told me to use Hurricane Electric DNS server which is 0.42% faster :O
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Old 07-10-2010, 08:18 AM   #7
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Default Re: Best free public DNS server?

oh sorry. didn't notice.

can you tracert that ip?
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Old 07-10-2010, 12:30 PM   #8
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Default Re: Best free public DNS server?

Code:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Francis>tracert 208.67.222.222

Tracing route to resolver1.opendns.com [208.67.222.222]
over a maximum of 30 hops:

  1     8 ms    <1 ms    <1 ms  192.168.0.1
  2     1 ms     1 ms     1 ms  192.168.1.1
  3     *        *        *     Request timed out.
  4    98 ms   221 ms    81 ms  10.7.3.61
  5    70 ms    87 ms    72 ms  120.28.2.45
  6   101 ms    75 ms    78 ms  120.28.2.178
  7    88 ms    85 ms    57 ms  10.12.191.2
  8    61 ms    89 ms    69 ms  10.4.4.138
  9    79 ms    79 ms    79 ms  10.4.4.254
 10     *        *        *     Request timed out.
 11    76 ms    53 ms    99 ms  120.28.2.177
 12    94 ms   128 ms    86 ms  10.7.4.29
 13    83 ms    77 ms   104 ms  10.7.4.30
 14   100 ms    79 ms    74 ms  120.28.2.45
 15    94 ms    84 ms    79 ms  120.28.2.22
 16    90 ms    67 ms    79 ms  120.28.0.249
 17   229 ms   231 ms   230 ms  120.28.0.82
 18   276 ms   239 ms   250 ms  4.79.42.165
 19   210 ms   239 ms   250 ms  vlan79.csw2.SanJose1.Level3.net [4.68.18.126]
 20   208 ms   257 ms   247 ms  ae-73-73.ebr3.SanJose1.Level3.net [4.69.134.229]

 21   236 ms   252 ms   281 ms  ae-2-2.ebr3.LosAngeles1.Level3.net [4.69.132.10]

 22   250 ms   228 ms   239 ms  ae-43-90.car3.LosAngeles1.Level3.net [4.69.144.197]
 23   273 ms   263 ms   235 ms  SPLICE-COMM.car3.LosAngeles1.Level3.net [4.71.32.78]
 24   247 ms   240 ms   234 ms  resolver1.opendns.com [208.67.222.222]

Trace complete.
Wow, so many time outs. =\

BTW. 192.168.0.1 is my router, while 1.1 is my wimax modem.
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Old 07-10-2010, 03:56 PM   #9
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Default Re: Best free public DNS server?

Quote:
Originally Posted by Francis View Post
Code:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Francis>tracert 208.67.222.222

Tracing route to resolver1.opendns.com [208.67.222.222]
over a maximum of 30 hops:

  1     8 ms    <1 ms    <1 ms  192.168.0.1
  2     1 ms     1 ms     1 ms  192.168.1.1
  3     *        *        *     Request timed out.
  4    98 ms   221 ms    81 ms  10.7.3.61
  5    70 ms    87 ms    72 ms  120.28.2.45
  6   101 ms    75 ms    78 ms  120.28.2.178
  7    88 ms    85 ms    57 ms  10.12.191.2
  8    61 ms    89 ms    69 ms  10.4.4.138
  9    79 ms    79 ms    79 ms  10.4.4.254
 10     *        *        *     Request timed out.
 11    76 ms    53 ms    99 ms  120.28.2.177
 12    94 ms   128 ms    86 ms  10.7.4.29
 13    83 ms    77 ms   104 ms  10.7.4.30
 14   100 ms    79 ms    74 ms  120.28.2.45
 15    94 ms    84 ms    79 ms  120.28.2.22
 16    90 ms    67 ms    79 ms  120.28.0.249
 17   229 ms   231 ms   230 ms  120.28.0.82
 18   276 ms   239 ms   250 ms  4.79.42.165
 19   210 ms   239 ms   250 ms  vlan79.csw2.SanJose1.Level3.net [4.68.18.126]
 20   208 ms   257 ms   247 ms  ae-73-73.ebr3.SanJose1.Level3.net [4.69.134.229]

 21   236 ms   252 ms   281 ms  ae-2-2.ebr3.LosAngeles1.Level3.net [4.69.132.10]

 22   250 ms   228 ms   239 ms  ae-43-90.car3.LosAngeles1.Level3.net [4.69.144.197]
 23   273 ms   263 ms   235 ms  SPLICE-COMM.car3.LosAngeles1.Level3.net [4.71.32.78]
 24   247 ms   240 ms   234 ms  resolver1.opendns.com [208.67.222.222]

Trace complete.
Wow, so many time outs. =\

BTW. 192.168.0.1 is my router, while 1.1 is my wimax modem.
problems:
  • timeouts
  • waaaaaaaaay too many hops
  • going back and forth between 10.x.x.x and 120.x.x.x (wtf!)
  • 120.28.0.82 sudden increase of ping. might be normal though.
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Old 07-10-2010, 10:52 PM   #10
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Default Re: Best free public DNS server?

How should I solve this? =\

Or is this some sort of ISP QOS problem?
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Old 07-11-2010, 02:49 AM   #11
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Default Re: Best free public DNS server?

ideally, there should not be so many hops and loops.

it should go from your router > modem > 10.x > a few 120.x > internet

the problem is obviously with your ISP's routing configuration and may be overloaded router.
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Old 07-11-2010, 12:55 PM   #12
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Default Re: Best free public DNS server?

thanks for the DNS! this solved my waiting for www.website.com prob
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Old 07-12-2010, 06:17 AM   #13
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Default Re: Best free public DNS server?

8.8.8.8
8.8.4.4

its so damn easy to remember too
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