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An Overview of Hosting A Website on Linux Dedicated Server.

August 5th, 2009 Comments off

As most of us must be aware, a Dedicated Server offer better security and reliability than any other web hosting solutions. Now-a-days dedicated servers too can be leased at affordable prices. Previously, only large businesses and enterprises used to host their websites on Linux Dedicated Server Hosting dedicated servers, but with the advancements in the web hosting industry, web hosts can offer servers at fairly cheap prices.

You have the option to opt between two types of servers namely Windows Dedicated Servers and Linux Dedicated Servers. Windows Servers being bit more expensive than Linux Dedicated Servers due to the licensing fees charged by Microsoft. Hence, if you are looking for cheap Dedicated server, a Linux dedicated server can be the best affordable option for you.

A Linux Dedicated Server can be considered to be more efficient and causes lesser technical problems as compared to other servers. The other benefit of Linux Dedicated Server is that it consumes lesser bandwidth than Windows Servers.

Linux Servers are considered to be more secure than Windows Server. For users who wish to have cheaper hosting solutions, there are many Linux hosting packages that can be opted for hosting the websites at cheaper prices. Linux hosting packages can be availed at cheaper prices due to the fact that Linux is an Open source OS and is registered under GNU, therefore there isn’t any cost of licensing that needs to be paid and hence decreases the cost of the hosting packages to be offered to the clients.

LAMP As there are advantages and benefits of having Linux Hosting solutions, there are some disadvantage and demerits too.  If your website requires LAMP technology, in that case Linux Dedicated Server would be the best option for you, but in case the website is designed using ASP.Net and requires MSSQL, then Windows Dedicated Server Hosting would be the best option to choose.

Before you choose a web hosting provider that offers Linux web hosting services, it is important that you get assured that they offer basic features such as firewall, virus protection and a control panel (optional)  along with flexible upgrade options. It is important that you check that the web host offers MYSQL database, sub-domain services, additional FTP creation etc.

There are few other basic features that you must keep in mind when choosing a perfect web host for you. You can refer the following link for the same : Key Aspects to Consider when Choosing a Web Hosting Provider.

You must bear in mind that, if you opt for a Linux Web Hosting server, you cannot avail the benefits of .Net and some of the other Microsoft applications.

Types of Clusters and Steps to Set-up MS-SQL Web Server Cluster.

August 3rd, 2009 Comments off

Cluster is usually useful to reduce the load on a particular server.

Basically, clustering can be defined as the use of more than one computer/ server that can work together. In this type of architecture, multiple servers are liked to one another and has the capability of handling workloads. It helps to offer continued working and offer 100% uptime. All the machines in a cluster are involved in the operations at any given point of time. The cluster of servers offer fault tolerance. It is also termed as Load Balancing.

There are two types of clustering architectures offered by Web Hosting services providers.

A) Failover Cluster Server:

Multiple servers are involved in Failover Cluster. Failover clustering is different from Load Balancing servers. The term itself gives a little hint of what it is. Servers are placed in a cluster to offer high availability, though there is an hardware or software failure. If a hardware or software fails, a counter action is taken by the cluster itself and the resources are fetched from other servers to continue with the operations. There is a constant monitoring always active in the cluster to monitor the resources. A practical failover of software as well as hardware including the current status of applications can be achieved by fault tolerant fail over cluster.

Below is a pictoral description of Failover Cluster Server.

Failover Clustered Server

B) Web Server Load Balancing:

The basic intention of a load balancing architecture is to distribute the load among the servers in the cluster. A cluster can have more than one servers. You can keep adding servers to the cluster. These servers are set up in such a way that the traffic is distributed Load Balanced Server among all the servers. Its due to such an architecture that the network load gets re-distributed and is not focused on a single server. This helps in offering better reliability and gaining much improved performance.

There are common set of hardware that is required which is two server nodes in the cluster. Both the servers are connected to the network, both having their individual operating systems. Among the nodes, only one node is kept active at a given point of time. This is also termed as the “Active/Passive” solution. The resources of the cluster is utilized by the active server or the node and the data is written onto Shared Disks. Just incase if a node fails, the other node takes its place. To check if all the nodes are working properly, a signal known as ‘Heartbeat’ is sent across the network of the servers. If the active server fails to respond, the passive server gets triggered and starts functioning as an active server. The resources of the cluster are diverted to the passive server which is operating as the main active server.

Below are the Steps to Install a SQL Server in a cluster

It is important that the cluster is operational before you Install a SQL Server into the cluster.

a) You require Windows Server edition with a support to MSCS on every server.

b) One must get assured about every server in the cluster to be connected to the private network.

c) You must set up a different network and mind that you do not connect them to this network, it must only be used for sending the heartbeat signals.

d) You need to create a user account for the service accounts for the cluster to operate under this account in the domain. You also need to add every administrators group of every server.

e) Now you can connect the shared hard disks to the server then shut the servers off and switch on the node number one of the cluster.

f) Now you can install Microsoft Cluster and then configure it through the control panel.

g) Now, you must provide a name to the cluster and assign an IP address with the resources of the Shared Disk.

h) After all the above mentioned steps are followed, now you must turn ON the second node in the cluster and move to the Fist node, only when the second comes online.

This concludes the set-up of the cluster. You can refer the below guidelines to Install SQL server in the cluster.

a) You need to insert the CD SQL Server Enterprize edition, you may or may not have to do the installation manually.

b) Now you can choose the Virtual Server on the on the computer name screen and enter the name that you wish to have the Clustered referred as.

c) You need to now create a service account to run SQL web server that you provide administration rights on each node on the cluster.

d) You can allocate an IP address, Shared Resources and a service account to the SQL Server at the time of installation.

An Overview of Network Load Balanced Dedicated Server Hosting.

August 2nd, 2009 Comments off

Network Load Balanced Dedicated servers can be setup on both the platforms i.e. Windows and Linux. Network load balancing is also termed as Clustered Server Hosting. This was included in the Windows Server OS enabled with TCP/IP services such as Virtual Media Networking, Web Services, Streaming Media and Terminal Services.

network-load-balanced-servers Hardware support is not required, the traffic is re-distributed to hosts. It offers a control and upgrade from Windows NT 4.0. This technique is popular due to its ability to offer high performance and its unique fail-over protection as compared to other load balanced servers.

There are many advantages of Load Balanced Servers.

a) Network load balanced servers offer an improved reliability of servers and has the capability to detect failure. It can distribute the traffic to different servers in the cluster depending their loads

b) Network load balanced servers are better than Round Robin Solutions

c) It has a centralized access to the servers in the cluster.

d) Network load balanced servers are offer scalability, with this it means, if you realize an increase in the traffic load, you can anytime add servers to the cluster.

e) The traffic can get distributed based on the customers request.

f) With this technology web hosting providers can offer 100% uptime to their customers.

g) It is much cheaper than the Hardware load balancing option.