Is it possible/recommended for two servers to use the same name servers?
For example, if I have two VPS servers; one for business one for personal. Can they both use the same name servers?
Server Fault is a question and answer site for system and network administrators. It only takes a minute to sign up.
Sign up to join this communityIs it possible/recommended for two servers to use the same name servers?
For example, if I have two VPS servers; one for business one for personal. Can they both use the same name servers?
If they can both see the name servers in question (i.e., not on an internal network to one of them)...sure.
A large proportion of the internet uses the Google name servers 8.8.8.8 and 8.8.4.4 so yes.
Indeed, name servers are hearty things that can handle one, two or even three concurrent connections at a time. I think you're safe in using one name server for both VPSs.
Certainly!
If each server needed a server of its own, you'd end up with a horrific sort of pyramid scheme where the servers at the bottom wouldn't have any servers to call upon.
Yes, this is the way it is designed to work, otherwise there would be as many name servers as there were sites.
There is absolutely nothing wrong with having more than one client performing lookups against the same server. Just make sure the DNS server is adequately sized to support the load.
Two independent name servers seems to be considered sufficient variety. How many computers use the same two name servers seems to be of little consequence. As long as you have two independent sources in different physical whereabouts and dependent on different networks you can attach about as many "clients" as you like. In fact half the world seems to be able to use the same two name servers, there is no reason two servers couldn't :)
You can surely setup your name-servers in one server and use the same for the other using the cpanel inbuilt DNS Cluster feature( WHM >> Cluster/Remote Access >> Configure Cluster). But, It is better if you,
Configure nameservers as,
ns1/ns2.yourdomain.com --> server 1
ns3/ns4.yourdomain.com --> server 2
Cluster the DNS using the DNS Cluster option in your WHM.
Use these four nameservers for your domains at your registrar.
By this way, if one of your nameserver server fails, the other will successfully serve for DNS requests(ofcourse there is no use, if the whole server is going to fail, unless you have proper mechanisms configured to handle such instances in place).
DNS Clustering Doc: http://docs.cpanel.net/twiki/bin/view/AllDocumentation/WHMDocs/ConfigureCluster
Cheers