t cht lk machine learning , automation , and rapid mitigation . For the datacentre provider , protection for individual tenants can reduce the risk of an out-of-control attack causing ancillary damage to neighbouring tenants or the datacentre itself .
t cht lk machine learning , automation , and rapid mitigation . For the datacentre provider , protection for individual tenants can reduce the risk of an out-of-control attack causing ancillary damage to neighbouring tenants or the datacentre itself .
When offered free of charge , DDoS mitigation can be a powerful competitive differentiator and customer enticement . Offered on a paid basis , potentially in multi-tiered models , DDoS mitigation services can open a rich new revenue stream .
Solid firewall infrastructure is a cornerstone of network security , but competitive solutions cannot be optimised without adequate firewall load balancing .
A universally available firewall is crucial in protecting the network and ensuring business continuity , network architectures should always include a load balancing solution that guarantees high availability for firewall defences and can easily scale out .
DNS server load balancing
Adrian Taylor , Regional VP of Sales EMEA , A10 Networks
However , many in the industry have been slow to respond to either the advantages or the necessity of tenant DDoS mitigation , with only 58 % offering such services either free or for an added fee . As DDoS threats increase , investing in effective mitigation services is a vital step for datacentre operators , in order to protect tenants , themselves , and to fulfil the bright projections for the industry .
Domain Name System , DNS servers are often used in large infrastructures or mission critical infrastructures , and they deploy DNS services across a cluster of servers . This cluster of DNS servers typically operates behind a server load balancing system , which allows the infrastructure to overcome the shortcomings in the standard DNS failover mechanism and increase performance .
Workloads
Global server load balancing
At certain times in a year , IT teams in sectors like retail , airlines prepare their systems for surges in traffic , maximising resiliency to ensure uptime and profitability .
One way of doing this is through load balancing , a methodology or algorithm that spreads network traffic , computing workloads or other service requests over a group of resources or services . Incoming traffic is distributed using various algorithms to balance the overall workload and improve customer experience .
Simply , load balancing provides scalability , optimises service reliability and availability and increases overall manageability . Services are load balanced based on algorithms like round robin , least connections , and fastest response .
There are a range of specific load balancing technologies that businesses can use .
Server load balancing
Global Server load balancing is a technology which directs network traffic to a group of datacentres in various geographical locations . Each datacentre provides similar application services , and client traffic is directed to the optimal site with the best performance for each client . GSLB monitors the health and responsiveness of each site , and like server load balancing , directs traffic to the site with the best response times .
Application Delivery Controllers
Application Delivery Controllers are network servers providing application reliability , acceleration , and application server services .
Application Delivery Controllers include server load balancing with additional technologies including SSL offloading , security firewall services , application firewall systems , DDoS protection , service chaining and others to deliver optimal resiliency and uptime .
A server load balancer is a hardware or virtual software appliance that distributes the application workload across an array of servers , ensuring application availability , elastic scale-out of server resources and supporting health management of back-end server and application systems .
Firewall load balancing
This load balancing method uses an array of security firewall systems to provide the ability to scale complex network devices and guarantee non-stop operation .
Each method of load balancing provides its own benefits for businesses depending on the size of the organisation , budgets , in-house capabilities , and typical traffic flow , but the importance of these technologies cannot be understated .
With e-commerce transactions spiking at certain times in a year , the consequences of either a successful attack or unplanned downtime , or the inability to manage network traffic in the current volatile environment , could be the difference between surviving and ceasing trading . p
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