« previous next »
Pages: [1]   Go Down

Author Topic: Netscaler GSLB  (Read 646 times)

Offline NS81

  • Contributor
  • *
  • Posts: 1
  • Karma: 0
Netscaler GSLB
« on: September 28, 2011, 09:45:05 PM »
Hi Experts,

Rookie Netscaler admin here.

Question regarding GSLB.

Let's say a company has site A in United States and Site B in Canada.
Both sides have GSLB fully configured and doing static proximity.
The domain bound to the GSLB Vserver is sslvpn.pepsi.com
Assume both sides are set to be authoratative for the domain.

If a user in the US browses to sslvpn.pepsi.com, how will the user's local DNS server know which GSLB virtual server to forward the request to (US or Canda)? What stops it from querying Canada's GSLB virtual server?
Logged

Offline Paul B

  • Hero Member
  • *****
  • Posts: 193
  • Karma: 20
Re: Netscaler GSLB
« Reply #1 on: October 03, 2011, 10:57:46 AM »
Quote from: NS81 on September 28, 2011, 09:45:05 PM
If a user in the US browses to sslvpn.pepsi.com, how will the user's local DNS server know which GSLB virtual server to forward the request to (US or Canda)? What stops it from querying Canada's GSLB virtual server?

Consider the static table as being a tree: both Netscalers knows here THEYis, and where their PARTNER Netscaler is in that tree..... so when a DNS query comes in, either Netscaler can then use the source IP of the incoming DNS request to see where in the tree the DNS resolver is located, and thus decide whether it is close (in the tree) to the US or the Canadian Netscaler.
Logged
Pages: [1]   Go Up
« previous next »