Shared Hosting and it’s drawbacks

Shared hosting service refers to a web hosting service where many websites reside on one web server connected to the Internet. This is generally the most economical option for hosting, as the overall cost of server maintenance is amortized over many customers.

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In shared hosting, the provider is generally responsible for managing servers, installing server software, security updates, technical support, and other aspects of the service. Most servers are based on the Linux operating system and LAMP (software bundle), which is driven by the reliability and security of open source software such as Linux and Apache (the ‘L’ and ‘A’ of LAMP). Some providers offer Microsoft Windows-based or FreeBSD-based solutions. For example, the Plesk control panel is available for two operating systems, Linux and Windows. Server-side facilities for either OS have similar functionality (for example: MySQL (database) and many server-side programming languages (such as the widely used PHP web programming language) under Linux, or the proprietarySQL Server (database) and ASP.NET programming language under Windows).




Implementation Types
There are two types of implementations for shared web hosting services

• IP based
o You can have a dedicated IP in IP based virtual hosting
o Your website gets connected via IP address used by the server to identify which website should be shown to the visitor
o You will have to use your own SSL certificate instead of using a shared certificate

• Name based
o This is also called as shared IP hosting.
o Your website with its host names will be shared with a common IP address.
o The name based hosting is possible due to the functionality of the web browser asking web server host name through HTTP/1.1




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Drawbacks
• If file permissions have been improperly configured, then shared file systems might give other (compromised) users or processes system-wide access to these files.
• System performance may suffer on heavily-loaded systems.
• Because of the lack of root access, user-installed services cannot listen on well-known ports below 1024

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