Comments on: Fast Domain Name Resolution with OpenDNS + Local Cache http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache Web Hosting Blog by a Software Developer Mon, 15 Mar 2010 14:17:02 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Tahder http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-1289 Tahder Fri, 11 Dec 2009 11:24:46 +0000 http://hostingfu.com/?p=85#comment-1289 I used to use the OpenDNS, but it didn't work form me. I am using an Ubuntu Server 9.10, i have a static ip but i don't have an domain name except in OpenDNS. My questions is how do i able to configure it in linux? Do i need to change the hostname of my Ubuntu to my domain that i got from OpenDNS? or just that DNS you have given to put in /etc/resolv.conf? Our ISP do have also a DNS? should i add or totally/ only 208.67.220.220 and 208.67.222.222? I used to use the OpenDNS, but it didn’t work form me. I am using an Ubuntu Server 9.10, i have a static ip but i don’t have an domain name except in OpenDNS. My questions is how do i able to configure it in linux? Do i need to change the hostname of my Ubuntu to my domain that i got from OpenDNS? or just that DNS you have given to put in /etc/resolv.conf? Our ISP do have also a DNS? should i add or totally/ only 208.67.220.220 and 208.67.222.222?

]]> By: Anonymous http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-462 Anonymous Thu, 24 May 2007 17:23:06 +0000 http://hostingfu.com/?p=85#comment-462 <p>to avoid single-point of failure, check out codns (http://codeen.cs.princeton.edu/codns/)</p> to avoid single-point of failure, check out codns (http://codeen.cs.princeton.edu/codns/)

]]> By: scotty http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-461 scotty Sat, 27 Jan 2007 08:21:27 +0000 http://hostingfu.com/?p=85#comment-461 <p>John -- sorry I have just noticed. Your comment been flagged as spam by Akismet. No idea how that happened...</p> John — sorry I have just noticed. Your comment been flagged as spam by Akismet. No idea how that happened…

]]> By: John Roberts http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-460 John Roberts Fri, 26 Jan 2007 21:19:06 +0000 http://hostingfu.com/?p=85#comment-460 <p>Scott, I see your reply to my initial comment, but I don't see my comment live?</p> Scott, I see your reply to my initial comment, but I don’t see my comment live?

]]> By: scotty http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-459 scotty Fri, 26 Jan 2007 11:05:13 +0000 http://hostingfu.com/?p=85#comment-459 <p>Josh -- I agree about that during development you often have to force a flush. However it's good that you can actually force a reload in this setup, whereas you can't if you just use your ISP's recursive DNS :)</p> <p>John -- At the end I want to check whether a domain exists or not. In shell I just try to resolve its A or NS records, and I prefer to see NXDOMAIN than OpenDNS's records coming back. There are also many different domain name based RBL, where I just can't assume that OpenDNS has a exception for them.</p> <p>Also typo correction gives you an indeterministic result when you perform test on inputs, if input is a hostname/domain name. Not good if you are building an application that relies on it.</p> <p>At the end I see typo correction only useful for web browsing, as the correction is done by forwarding the HTTP traffic to your web server. I understand that it provides OpenDNS's revenue stream, and I'll use it on my desktop, but no so with servers that I am hosting applications.</p> Josh — I agree about that during development you often have to force a flush. However it’s good that you can actually force a reload in this setup, whereas you can’t if you just use your ISP’s recursive DNS :)

John — At the end I want to check whether a domain exists or not. In shell I just try to resolve its A or NS records, and I prefer to see NXDOMAIN than OpenDNS’s records coming back. There are also many different domain name based RBL, where I just can’t assume that OpenDNS has a exception for them.

Also typo correction gives you an indeterministic result when you perform test on inputs, if input is a hostname/domain name. Not good if you are building an application that relies on it.

At the end I see typo correction only useful for web browsing, as the correction is done by forwarding the HTTP traffic to your web server. I understand that it provides OpenDNS’s revenue stream, and I’ll use it on my desktop, but no so with servers that I am hosting applications.

]]> By: shasyng http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-458 shasyng Fri, 26 Jan 2007 09:04:59 +0000 http://hostingfu.com/?p=85#comment-458 <p>could u tell me step by step on how to configure my personal windows based email server</p> could u tell me step by step on how to configure my personal windows based email server

]]> By: John Roberts http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-457 John Roberts Thu, 25 Jan 2007 17:21:55 +0000 http://hostingfu.com/?p=85#comment-457 <p>Scott, very well-written and detailed article. Wow. Thanks from all of us at OpenDNS.</p> <p>Could you detail the programs you're running which depend on NXDOMAIN?</p> <p>We've done some work to return NXDOMAIN (regardless of preference) for all requests to SURBL.org and URIBL.com and a few similar domains.</p> <p>The point? We don't think it will be necessary to turn off typo correction in most situations, and we want to remove the need whereever possible.</p> <p>So knowing what programs (besides some blacklists on mailservers) need special treatment would be welcome, especially since you have such an insight into the hosting world.</p> <p>Cheers,</p> <p>John Roberts OpenDNS</p> Scott, very well-written and detailed article. Wow. Thanks from all of us at OpenDNS.

Could you detail the programs you’re running which depend on NXDOMAIN?

We’ve done some work to return NXDOMAIN (regardless of preference) for all requests to SURBL.org and URIBL.com and a few similar domains.

The point? We don’t think it will be necessary to turn off typo correction in most situations, and we want to remove the need whereever possible.

So knowing what programs (besides some blacklists on mailservers) need special treatment would be welcome, especially since you have such an insight into the hosting world.

Cheers,

John Roberts
OpenDNS

]]> By: Josh Skidmore http://hostingfu.com/article/fast-domain-name-resolution-with-opendns-local-cache/comment-page-1#comment-456 Josh Skidmore Thu, 25 Jan 2007 15:09:01 +0000 http://hostingfu.com/?p=85#comment-456 <p>Scott,</p> <p>Great article. I was actually playing with dnsd on my local network the other day, and incredibly, it can speed up OpenDNS even more. Being a web developer though, I already find myself having to use their CacheCheck service often and introducing a new DNS element to my local network is just another area for me to have to "flush" if I assume a domain is up and running before it actually is.</p> <p>-Josh</p> Scott,

Great article. I was actually playing with dnsd on my local network the other day, and incredibly, it can speed up OpenDNS even more. Being a web developer though, I already find myself having to use their CacheCheck service often and introducing a new DNS element to my local network is just another area for me to have to “flush” if I assume a domain is up and running before it actually is.

-Josh

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