How does DNS work with Gslb?
The user requests the DNS services hosted by the GSLB to get the IP address of the server hosting the application. The GSLB DNS server gives the IP address to direct the user to the datacenter according to GSLB distribution algorithm selected. The user connects to the IP address communicated by the GSLB’s DNS service.
How do I redirect a DNS request?
Redirecting Client DNS Requests
- Navigate to Firewall > NAT, Port Forward tab.
- Click Add to create a new rule.
- Fill in the following fields on the port forward rule: Interface. LAN. Protocol. TCP/UDP. Destination. Invert Match checked, LAN Address. Destination Port Range. DNS (53) Redirect Target IP. 127.0. 0.1.
What DNS record is used to redirect traffic?
A Canonical Name (CNAME) Record is used in the Domain Name System (DNS) to create an alias from one domain name to another domain name.
How does Citrix Gslb work?
GSLB receives a DNS query, and then GSLB sends back an IP address, which is exactly how a DNS server works. The user then connects to the returned IP, which doesn’t even need to be on a NetScaler ADC. GSLB is only useful if you have a single DNS name that could resolve to two or more IP addresses.
What are the options to route traffic with Gslb?
GSLB methods
- Round Robin.
- Least Connections.
- Least Response Time.
- Least Bandwidth.
- Least Packets.
- Source IP Hash.
- Custom Load.
- Round Trip Time (RTT)
How does Gslb load balancer work?
To perform this function, a GSLB system typically monitors the health, availability, and loading for each data center; calculates client geographical locations based on their ISP DNS server address; and applies any other policies that have been configured around regulatory requirements and content localization.
What is the difference between DNS resolver and DNS forwarder?
Usually a “resolver” is referring to software on a DNS client that is responsible for contacting DNS server(s) as necessary to convert a DNS name to an IP address (or other DNS requests to answers.) A DNS “Forwarder” is a DNS server being USED by another DNS server to assist in resolving DNS queries.
What is the difference between SLB and GSLB?
Global Server Load Balancing (GSLB) is an upgraded concept of Server Load Balancing (SLB). While SLB can check the health status of a server (whether it is down or not) and distribute server loads through L4 switching in just a single site, GSLB can do the same in multiple sites over a wider geographic area.