Domain name server question

..nameserver 3 and 4

[squallions]

I have two different hosting accounts (from different server/hosting company) and a domain from godaddy.com. I noticed in godaddy.com has 4 nameservers. Currently the first two nameservers are used for host 1.

If I enter the DNS for host 2 to nameserver 3 and 4, so if host 1 is down, it can go to host 2?

Another question. My phpbb database is running on host 1, is there anything that would prevent files on host 2 to access that database on host 2?

Thank.

[CaseyRyan]

Typically, you would have a primary dns server, then the secondary (tertiary and 4th ) would mirror the contents of the primary.

Adding a 3rd and 4th that point to a different server will not provide the redundancy that you seek. It's going to be hit or miss as to wheter a client goes to the 1st, 2nd, 3rd or 4th dns server. You may get some people who go to that 2nd host, but most will continue to hit the host that's down.

I believe that you would have to go to something like a round robin, load balancing system (windows load balancing services, or bigIP are examples.) If you had one of these, you would point the DNS to the single IP they use and they would direct your traffic to the up webserver.

regards to your second question:
A firewall or permissions would prevent host2 from connecting to a database on host1.

-=casey=-

[squallions]

Thank CR.