Following are few of the ways of setup :

Round Robin DNS Load Balancing dedicated server :

It is basically DNS binded server that load-balances multiple dedicated web servers. This is normally known to be used for group of clusters. Some of the main advantages is that is very simple and can easily be implemented.

The only disadvantage is that the DNS server does not know if any server goes down. It knows only the difference of the IP and does not know by server port. The IP can be cached by others and request will not be forwarded to the other server.

Hardware Load-balancing dedicated server :

Hardware load-balancers route TCP/IP packet to different servers in a cluster. They are highly-reliable but with a cost. It used network gatewat to route traffic. The only disadvantage is that it is cheaper to software versions.

Software Load-balancing dedicated server :

These days, software load balancing dedicated servers are normally used which are integrated with web servers and application servers. They are much cheaper when compared to a hardware load-balancer and can easily be configured as per requirements. Unlike, Round-Robin, it can easily route based on different parameters. It requires additional hardware for complete setup of load-balancer.

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The load needs to be distributed among various servers to improve the performance of the server and maintain 100% Uptime on the server. This applies to application as well as database server. In this case, we will consider HTTP request that uses the feature known as IP spraying or rather also called as load / network dispatcher. It checks each HTTP request and redirects to the server or the cluster of servers. It is also used for fail-over dedicated server specifications.

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Major websites like netscape, yahoo! and many others have these techniques to increase the efficiency of performance of the server and manage the load accordingly. Due to heavy usage, usually services and applications or hardware service exhaust. In order to reduce the load, this technique has been introduced.

It basically depends upon two main factors such as network-transfer speed and server response time. Both servers of the equal high-configuration is required especially for programs such as CGI. It may also require more of RAM mainly for running simultaneous HTTP daemon process. This also used to manage network traffic on the servers.

A network load balancing cluster routes to one single IP to the available servers in the cluster. Each machine runs independent processes of the others duplicating resource on each server. The database is located on one server and is accessible by all servers.

Many different servers can be configured for many services such as TCP, UDP or applications such as HTTP, FTP, SSL, SSL Bridge, DNS, SIP and many others.

For applications such as SSL can increase loads on the servers and can be a burden on the resources mainly on the CPU. Load balancers manages web servers for SSL connection and increases the performance of the servers. It can also prevent from D-Dos Attacks be providing features such as SYN coookies and delayed-binding.

It also allows compression of HTTP services reducing the loads again. It can also help clients from different TCP to reach HTTP requests. It can buffer the resources to slow clients increasing efficiency. It allows HTTP caching which can reached without reaching the web servers.

Load balancing clusters also allows sources to control or track traffic. In order to increase safety for HTTP, it can also hide HTTP error pages. One of the main features include prioritizing traffic and Global Server Load Balancing Dedicated Server.

It can also send different request to different servers. It also manages traffic between many ISP’s. Load balancers can authenticate clients to access the websites. It also follows layer-7 security policy to ensure HTTP and HTTPS websites.

Spam detection from known spammers is yet another feature of load balancers.

Bodhost.com also provides load-balancing Cluster Server Hosting.

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