Open Dns To Get Faster Speed In Airtel Dsl Connections

anshu

Newbie
[OP]
Regulars
Nov 11, 2006
65
0
Airtel DSL DNS Servers are overloaded sometime it takes up to 2 seconds or query get just timed out.

Here is the Open DNS server - which is a free and powerful DNS service. Use following DNS server address:



Code:

208.67.222.222 ---> Preffered DNS Server
208.67.220.220 ---> Alternate DNS server
 

SiriusB

Torrential
Regulars
Jun 11, 2005
147
1
I am using opendns myself. I haven't tried the level3 ones but opendns can warn u of phishing sites and correct addresses, among other things.
Also, try using FastCache in conjunction with these alternate DNSes. It's a dns cache. It really helps if u are running BT/p2p in the background and are pressed for bandwidth for browsing (like most of us here). I think ppl with more than one machine connected will see better performance with fastcache. Just thought it might help someone here.
 


blr_p

Regulars
Regulars
May 26, 2005
3,935
13
OK lets test this out

- ping 4.2.2.1 (*susubh's level 3*)

Approximate round trip times in milli-seconds:
Minimum = 271ms, Maximum = 280ms, Average = 276ms

- ping 208.67.222.222 (*Airtel Buddie's preferred open DNS server*)

Approximate round trip times in milli-seconds:
Minimum = 286ms, Maximum = 287ms, Average = 286ms
=====================================================================
My Airtel primary DNS server
- ping 125.22.47.125
Approximate round trip times in milli-seconds:
Minimum = 35ms, Maximum = 36ms, Average = 35ms

my Airtel secondary DNS server
- ping 202.56.250.5
Approximate round trip times in milli-seconds:
Minimum = 45ms, Maximum = 54ms, Average = 47ms
=====================================================================

Interesting to see that Airtel's DNS servers are almost 8 times faster to get to than 3rd party ones :) and there was 0% packet loss in all cases. Hardly surprising since they would be on Airtel's network as opposed to somewhere on the net.

But you will say less congestion, more powerful servers with 3rd party etc.

Why do i get the impression that taking all these factors into acount the result using either is *nearly* the same. Only exception being when this site moves servers you will have to wait longer for the site to show up in Airtel's DNS.


Note to Sirius B i've been using fastcache for some time now, great when it works but it tends to stop working after a bit (few days), only solution i have for this bit of lameness is to go into the options and do click "swap dns server" button 2 times. Now if only i could automate this, so it gets done at least once every few days. Another windows DNS cache to try is Treewalk DNS.

I leave my laptop on 24/7/365, so if you shut down every day you might not notice it.
 

vishalrao

The Global Village Idiot
Regulars
Jan 21, 2005
4,723
302
Pune
blr_p, i dont think the ping matters. i think the actual response time to DNS name lookup requests matters...it could take only 35 ms for the request to reach and another 35 ms for the response to come back, but the time in between where the DNS server is hung up? :)
 

GSV13

Special Member
Regulars
Apr 14, 2006
1,115
3
Well the best solution is to have primary Dns with your isp while secondary with open one given above !! This way speed are also fast while the address which are not updated in our isp dns server could be opened via open dns one.Like if i change my secondary dns from 4.2.2.1 to one my isp provide then this site(BBF.in) wouldn't open up !!
 


blr_p

Regulars
Regulars
May 26, 2005
3,935
13
If some one can suggest some tool that can time these DNS resolutions then we have a definitive answer. It would take time for the ip addr to return, given a url for all the DNS servers mentioned above.

Found one called dig (this is a windows version BTW)

Tried 3 tests in succession and avg'd the result in query time

dig @4.2.2.1 broadbandforum.in
;; Got answer:
;; ->>HEADERHEADER
 

aniketvb

Linuxguy
Regulars
Oct 2, 2005
465
0
; DiG 9.3.2 @4.2.2.1 broadbandforum.in
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADERHEADER
 
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