Impact of a multiple server web host on uptime

Impact of a multiple server web host on uptime

Multiple server web hosts can improve not only the uptime of your website but also ensures that the security measures of your website are fine. A great thing about the multi server web hosts is that they have a wonderful feature known as redundancy. This would ensure that even if there is an issue with one server then also your website will function normally and can claim of 100% uptime because the other server is working fine.

In this redundancy the data is routed from the web hosting servers to the website via a high speed line. However, it is not only rare but also can be costly; therefore nowadays some multiple server hosting companies are taking the DNS round robin strategy. In this strategy a domain name is mapped to various IP addresses. Along with this you would also get the failover monitoring policy which would constantly watch which IP address is working. Whenever it finds one the DNS would immediately map the website to that IP address. This is the easier way for accessing the websites.

There is another advantage of round robin DNS. When a site is registered then it takes some time for the information to get around the Internet. Therefore the site is not immediately available to the users searching for it. This delay results in the blocking of the security advantages provided by the multiple servers. The same thing occurs when the server goes down so that the websites become dysfunctional. Then the DNS has to change to the second server and that also takes some time. These problems are solved by round robin DNS as it immediately maps a domain name to more than one IP addresses. If one IP address is giving error then the DNS pulls out that IP address and then tries to connect the site to another IP address. As in all probability at least one of these IP addresses would remain functional therefore the website will continue running.There is another advantage of round robin DNS. When a site is registered then it takes some time for the information to get around the Internet. Therefore the site is not immediately available to the users searching for it. This delay results in the blocking of the security advantages provided by the multiple servers. The same thing occurs when the server goes down so that the websites become dysfunctional. Then the DNS has to change to the second server and that also takes some time. These problems are solved by round robin DNS as it immediately maps a domain name to more than one IP addresses. If one IP address is giving error then the DNS pulls out that IP address and then tries to connect the site to another IP address. As in all probability at least one of these IP addresses would remain functional therefore the website will continue running.

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