India Broadband Forum

12-20-08, 03:38 PM

Most people cite the following benefits of using OpenDNS:

a) web-content filtering protection
b) improved speed of name-resolution

I think a) above can be achieved without using OpenDNS - if you have a router, it most probably provides ability to do URL filtering and if you use a firewall, depending upon what its capabilities are, you can be protected against unwanted web-content and can implement URL filtering too, in addition to IP-address based filtering. Depending upon what browser and software you use, you can be further protected. The facility provided by OpenDNS does not weigh favourably against the compromise in privacy.

And I wonder how well OpenDNS would work to provide this protection if DNS resolution is not involved at all (directly accessing a server by IP address). Its web-content filtering etc. will not work then, correct? But if you used other mechanisms to protect yourself, they may still work. Of course, the other mechanisms can be used in addition to using OpenDNS.

b) is largely immaterial because DNS queries are mostly cached, so it is only the initial hit which is slow (and not that terribly slow) in case of people not using OpenDNS.

However, on certain days and in certain places and configurations, it is useful to have OpenDNS as a fallback DNS server.

Jaganathsamal · 12-22-08, 10:48 PM

I use open dns with my mtnl broadband connection (no problems yet).

01-05-09, 11:36 AM

will try

01-05-09, 08:29 PM

i am using open dns but there hasn't been mch increase in speeds

inba · 01-13-09, 12:34 PM

cool post

i learned something from you today thanks

Harshytkage · 01-21-09, 02:44 PM

Opendns has been working gr8 for me for the past 2 weeks, beats the crappy bsnl response times...

Mr.Tooth Fairy · 01-21-09, 03:25 PM

basically what it does?? increases internet speed or something more.. tht u all ppl are behind it so much.. opendns..

Harshytkage · 01-21-09, 03:38 PM

besically, openDNS offers it's own servers so that the response times from a query dont make ur browsing experience hell, it doesn't actually increase Speed...in a way it accelerates while browsing...

DM111PUSP · 01-24-09, 04:39 PM

Quote:

Originally Posted by Mr.Tooth Fairy

basically what it does?? increases internet speed or something more.. tht u all ppl are behind it so much.. opendns..

Whenever you type a domain name like www.indiabroadband.net in a browser, this name must be converted to an IP address.. then only the browser can establish the TCP connection with the web server running on that IP address..
To convert that domain name to a corrosponding IP address, computer make use of DNS servers.

StarK · 01-29-09, 02:16 PM

bacause i have a dynamic ip and i hate programs running in the tray, i hav stoppd using the opendns account (but continue using it normally).
whatever site i need to block i just put its ip address in the humble firewall

.

12-20-08, 03:38 PM	#21
smnesmwhr Guest Posts: n/a	Most people cite the following benefits of using OpenDNS: a) web-content filtering protection b) improved speed of name-resolution I think a) above can be achieved without using OpenDNS - if you have a router, it most probably provides ability to do URL filtering and if you use a firewall, depending upon what its capabilities are, you can be protected against unwanted web-content and can implement URL filtering too, in addition to IP-address based filtering. Depending upon what browser and software you use, you can be further protected. The facility provided by OpenDNS does not weigh favourably against the compromise in privacy. And I wonder how well OpenDNS would work to provide this protection if DNS resolution is not involved at all (directly accessing a server by IP address). Its web-content filtering etc. will not work then, correct? But if you used other mechanisms to protect yourself, they may still work. Of course, the other mechanisms can be used in addition to using OpenDNS. b) is largely immaterial because DNS queries are mostly cached, so it is only the initial hit which is slow (and not that terribly slow) in case of people not using OpenDNS. However, on certain days and in certain places and configurations, it is useful to have OpenDNS as a fallback DNS server. Last edited by smnesmwhr; 12-20-08 at 09:32 PM.

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12-22-08, 10:48 PM	#22
Jaganathsamal Bronze Member Join Date: Dec 2008 Age: 17 Posts: 170 Rep Power: 1	I use open dns with my mtnl broadband connection (no problems yet).

01-05-09, 08:29 PM	#24
Sid Guest Posts: n/a	i am using open dns but there hasn't been mch increase in speeds

01-13-09, 12:34 PM	#25
inba Junior Member Join Date: Oct 2008 Location: chennai/pondicherry Posts: 55 Rep Power: 2	cool post i learned something from you today thanks

01-21-09, 02:44 PM	#26
Harshytkage Bronze Member Join Date: Jan 2009 Age: 18 Posts: 164 Rep Power: 1	Opendns has been working gr8 for me for the past 2 weeks, beats the crappy bsnl response times...

01-21-09, 03:25 PM	#27
Mr.Tooth Fairy Platinum Member Join Date: Aug 2008 Location: oral cavity:D Posts: 1,546 Rep Power: 5	basically what it does?? increases internet speed or something more.. tht u all ppl are behind it so much.. opendns..

01-21-09, 03:38 PM	#28
Harshytkage Bronze Member Join Date: Jan 2009 Age: 18 Posts: 164 Rep Power: 1	besically, openDNS offers it's own servers so that the response times from a query dont make ur browsing experience hell, it doesn't actually increase Speed...in a way it accelerates while browsing...

01-29-09, 02:16 PM	#30
StarK Platinum Member Join Date: Mar 2008 Location: Nayi Dilli Posts: 1,392 Rep Power: 4	bacause i have a dynamic ip and i hate programs running in the tray, i hav stoppd using the opendns account (but continue using it normally). whatever site i need to block i just put its ip address in the humble firewall .