Get Paid to Participate - up to $1 per post!     Twitter     Facebook     Google+
Hosting Discussion
 

forgot password?



Reply


Old
  Post #1 (permalink)   11-18-2007, 12:58 PM
Rob
HD Master
 
Join Date: Aug 2007
Location: Wiltshire
Posts: 276
Send a message via AIM to Rob Send a message via Skype™ to Rob

Status: Rob is offline
Hi everyone,

I was just wondering which hosting companies (if any) are using DNS failover. If so which company do you use or do you do it yourself though clustering / load balancing etc.
__________________
Rob G.
Chief Operating Officer
Peartree Digital Media Solutions
 
 
 


Old
  Post #2 (permalink)   11-18-2007, 01:57 PM
HD Guru
 
Join Date: Sep 2005
Location: England
Posts: 753
Send a message via Skype™ to Matthew

Status: Matthew is offline
In the past we offered the option of 3 name servers (2 onsite and one in South Africa). Is this the kind of failover you mean? ie... the quickest DNS server to respond handles the query. If the US name servers are down then the SA name server would still respond till we fixed the US ones.
__________________
Matthew
 
 
 


Old
  Post #3 (permalink)   11-18-2007, 02:08 PM
Rob
HD Master
 
Join Date: Aug 2007
Location: Wiltshire
Posts: 276
Send a message via AIM to Rob Send a message via Skype™ to Rob

Status: Rob is offline
Quote:
If the US name servers are down then the SA name server would still respond till we fixed the US ones.
Yep thats pretty much what i was talking about, then once the primary server was back online the dns automaticially switched back from backup to primary.
I know DNS Made Easy do this type of thing.
__________________
Rob G.
Chief Operating Officer
Peartree Digital Media Solutions
 
 
 


Old
  Post #4 (permalink)   11-18-2007, 02:18 PM
HD Guru
 
Join Date: Sep 2005
Location: England
Posts: 753
Send a message via Skype™ to Matthew

Status: Matthew is offline
A switch back is not needed for DNS. As long as you have name servers set up (primary, secondary, tertiary etc...) and the domain name has specified all of the name servers then when the domain is entered in to the address bar the name servers are queried and the first to respond provides the IP address. If one is off line then it just wont respond and one of the other ns will automatically answer. As long as 1 is online then a response will be given. You do not need to specify which handle which request etc...

However, if you have a tertiary name server in Japan for example and the US ns1/ns2 is down then site visitors in the US might notice a larger delay of a few more seconds as the ns3 could take longer to respond due to latency between the US and JP. But it would respond and provide resolution for the name.
__________________
Matthew
 
 
 


Old
  Post #5 (permalink)   11-21-2007, 06:34 AM
HD Addict
 
Join Date: Nov 2007
Posts: 190

Status: brianf is offline
I believe Matthew is looking for information on DNS that changes the A record for a domain's zone if the site goes down. Once the original site becomes available then the A record is changed back.
 
 
 


Old
  Post #6 (permalink)   12-10-2007, 05:10 PM
HD Newbie
 
Join Date: Dec 2007
Posts: 32

Status: timihosting.com is offline
We have two servers for DNS, both are RAID 1. Most of our customers run their own DNS servers therefore we do not have the need to load balance any traffic to either DNS servers at the moment.
 
 
 


Old
  Post #7 (permalink)   12-27-2007, 03:39 AM
HD Newbie
 
Join Date: Dec 2007
Posts: 32

Status: timihosting.com is offline
Quote:
Originally Posted by Rob View Post
Hi everyone,

I was just wondering which hosting companies (if any) are using DNS failover. If so which company do you use or do you do it yourself though clustering / load balancing etc.
Good question.

Sure, having it raid 1 or load balance is a great idea. I also suggesting splitting the dns servers up in different location as well.

We're a West Coast Hosting company, therefore, we would want to put a DNS server on the East Coast if not somewhere near.
 
 
 


Old
  Post #8 (permalink)   12-27-2007, 12:31 PM
HD Amateur
 
Join Date: Dec 2007
Location: http://www.geekrack.net
Posts: 61
Send a message via AIM to $alesMan Send a message via MSN to $alesMan Send a message via Yahoo to $alesMan Send a message via Skype™ to $alesMan

Status: $alesMan is offline
I've heard of companys doing this but I assumed they coded there own system for soem reason. Can anyone point me to a place that has software to buy I'd gladly appreciate it.
__________________
NO LONGER ASSOCIATED WITH GEEKRACK>
 
 
 


Old
  Post #9 (permalink)   12-27-2007, 07:15 PM
HD Addict
 
Join Date: Nov 2007
Posts: 190

Status: brianf is offline
GR-Andy:
Are your refering to fail-over DNS or clustering?
 
 
 


Old
  Post #10 (permalink)   03-31-2008, 09:07 AM
HD Amateur
 
Join Date: Nov 2007
Posts: 69

Status: vpsville is offline
The dns servers don't have to agree on what the IP for an A record is. So the dns server in europe can direct a user to the europe webserver, and the american dns can take the user to the american website etc.

Just set the A records to be short lived (like 60 seconds). That way if europe goes down people will just see the american website until its fixed.

The issue then is to keep those two webservers, mailservers and maybe database servers synced. If you can do that you have an enterprise load-balanced fail-over system for the price of 2 VPS accounts
__________________
VPSVille.com
Toronto Canada, London UK, Los Angeles CA
Quality VPS hosting on Premium bandwidth
 
 
 
Reply

Thread Tools

New Post New Post   Old Post Old Post
Posting Rules:
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On
Sponsored By: