Gslb dns bind software

An extendable high availability solution for the data center and beyond, global server load balancinggslb, dnsbased traffic manager. How to configure gslb setup for internal users from gui. Contribute to alekseychudovpowergslb development by creating an account on github. Gslb is special only because of the algorithms and protocols involved in deciding which ip address must be sent for a dns query. Cloudstack will bind virtual server 1 at zone 1 and virtual server 3 at zone 2 to glsb virtual server 2. Generally, the client chooses the first ip address in the list and initiates a connection with that server. Gslb sites are typically geographically distributed and there is a dns authoritative name server at each site running as a service on the netscaler appliance. Bind is used successfully for every application from publishing the dnssecsigned dns root zone and many toplevel domains, to hosting providers who publish very large zone files with many small zones, to enterprises with both internal private and external zones, to service providers with large resolver farms.

Then as the registrar name server records are propagated throughout the internet and as dns queries start going through your netscaler, gslb will take over dns resolution for that particular record. Bind the gslb service with the above created dns policy. You typically bind the dns names to the active gslb vserver, which has the active gslb service. As for your pc, that depends on what dns resolvers are configured. Setting up a basic citrix netscaler gslb david vassallo. Navigate to traffic management gslb service, click the required service, click on edit and the choose the dns view option. With ordinary dns, when a client sends a domain name system dns request, it receives a list of ip addresses of the domain or service. Bin some month since i started working with citrix netscaler and so far i really like the netscaler. You can manually terminate them and maybe the client software will try to do another dns request. How dnsdomain name system works with gslb feature on. Cloudstack will also orchestrate setting up gslb virtual server 3 on gslb service provider at zone 2. I will not go into the deep how global server load balancing gslb works and only explain my configuration.

To bind a domain to a gslb virtual server by using the configuration utility navigate to traffic management gslb virtual servers. Each data center provides similar application services, and client traffic is directed to the optimal site with the best performance for each client. Gslb virtual server 1 is configured to start monitoring the health of virtual server 1 and 3. In gslb virtual servers pane, select the gslb virtual server to which you want to bind the domain for example, vservergslb1 and click open.