DNS help

[Mamut0o1]

I'm trying to design a way so if host "A" fails Host "B" will take over.
If my computer can not connect to Host "A" DNS will resolve to go to Host "B".
I was hoping in anyone could help me how to set this up using a DNS server.
thanks

 

[DelJo63]

that's automatic in the TCP config. If you look, there should be TWO DNS addresses.
Failure on the first (or a timeout) will cause the second to be used.

HOWEVER: you can't just slam in any two DNS addresses!

If you want to use manual DNS configuration, then you must be able to use

run->cmd
nslookup www.google.com dns-addr-1
nslookup www.google.com dns-addr-2​

both requestions must return an IP address for google -- anything else will mean
that the dns-addr-x used may be valid but is not configured for a recursive query and
you MUST find some other dns address to use.

You would be better off using the TCP DHCP supplied DNS address(es)

 

[gilloz]

Have you considered OpenDNS.com? Check it out.

 

[Justin]

The file /etc/resolv.conf is where your current DNS settings are stored.

What exactly is your concern with DNS? Are you having trouble with your ISP's DNS servers not responding?

I strongly suggest NOT using OpenDNS.

 

[DelJo63]

I strongly suggest NOT using OpenDNS.

Can you qualify that recommendation please. There are several good reasons for
using it, including avoiding the DNS poisoning threat.

see Computerworld article