Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : website hosted on 2 servers (DNS MODIFICATION)

[Bashar]

scenario:
example.com hosted on
ns1.example.net
ns2.example.net
ns1.example.org
ns1.example.org

ns*.example.com points the domain to 111.111.111.111

ns*.example.org points the domain to 222.222.222.222

MX record on both servers points to the same box


result, would it work as load balancing for example.com ?

i mean would it work as if hosting on ns*.example.com and pointing the www.example.com to both IPs ?

baring in mind ns*.example.org aren't slave servers for ns*.example.net


Thanks.

[XLHost]

If you want to load balance you would simply do this:

@ 86400 IN SOA dns4.ee.net. hostmaster.ee.net. (
2003111002 ;serial
28800 ;refresh
7200 ;retry
604800 ;expire
86400 ;minimum
)
86400 IN NS dns4.ee.net.
86400 IN NS dns3.ee.net.
86400 IN NS dns2.ee.net.
86400 IN NS dns1.ee.net.
86400 IN NS ns1.netservice.thenap.net.
86400 IN A 209.190.49.2
86400 IN A 209.190.50.2

Just make as many A records in the single domain as you want to LB, its round-robin dns but it will work.

-Drew

[John[H4Y]]

Yes, setting authoritative nameservers with different A records does perform load balencing as well (randomly loads from one IP or the other).

[Bashar]

yeah i'm aware of this

but my customer asked me to add 2 another nameservers to their domain so they are be able to host their domain on multiple servers

so i was wondering is it possible or not?

[Avatar]

Well, they obviously don't know what they're talking about

Nameservers wouldn't make much difference! As long as the correct DNS records are used, or hardware load balancers... then it should be easy enough to load balance the site.
Of course, RRDNS doesn't take into account what happens when a server goes down... but hardware load balancers can, plus you'd only then point the site at a single IP (the load balancer) which would forward the requests on to the cluster of server's behind it.

[Bashar]

on another issue:

say its hosted on 4 nameservers and each 2 nameservers has different entries which will be responding to the requests?

wouldn't it work if having to A entries to 2 different IPs ?