A higher bandwidth results in more data being transmitted in a shorter time frame, allowing for faster communication and data transfer.

Bandwidth depends on the quality of the network connection, the number of users sharing the connection, the type of data being transmitted, and other factors. Bandwidth is often a key factor when organizations choose any web hosting or cloud service provider.

The instances (VEs), also containers, work like a separate, real computers. Any software application running on a standard  Operating System can use all resources – CPU power, memory and other computing resources as well as files and folders – of a Container based computer.

Containers crated thought an OS Operating virtualization does not feature the same level of flexibility as the Virtual Machines created with full virtualization, for example. A Container cannot use an OS different from the one that runs on the underlying physical server, or a different guest kernel. If the underlying host runs any Linux distribution, the Containers that run on top of it cannot run Windows.

However, “Managed Website” most often indicates that the customer’s website, which is managed by the service provider is probably hosted in a Shared Hosting environment. For that reason the service could be also called “Managed Website Hosting”.

What is include into a Managed Website service?

When it comes to technical and system administration “Managed Website” means that the web hosting company take over the full management of the customers account and provides services like:

• HTML editing
• Graphic Design support and maintenance
• Content Management System support, management and updates
• Search Engine Optimization of the web pages
• Software installation and maintenance
• Full Technical Support of all applications installed on the web hosting account
• Full Technical support of all services configured on the web hosting account
• Both Server-Side application and Client-side application support
• Resource Monitoring
• Website Uptime Monitoring
• Website Security management and hardening
• Troubleshooting and overall service improvements

Unlike that standard Self-Managed Web Hosting, the Managed Website (Hosting) service means that the owner of the website outsources the overall website management lifecycle to the service provider.

Most web hosting providers that offer personal or small business Shared Hosting (Virtual Hosting) services do self-service web hosting. Although there is no term as “Self-service” in the web hosting industry the pharase can be used to explain a web hosting service, which is managed by the account owner.

A Managed Shared Web Hosting service requires the web hosting provider to support the customer’s account client-side, to fix install apps and service, to monitor the resource usage, to do backups, to resolve issues inside the Shared hosting account and to troubleshoot it when necessary.

Term “Managed Web Hosting” is a broad term, that might or might not refer to “Manage Hosting”. It might would be used to describe in general that a certain type of IT hosting service is managed by the web hosting provider. It could be either physical server (Managed Dedicated Hosting or Managed Dedicated Server), Virtual Server (Managed Virtual Private Server, VPS, Managed VDS) or any custom-buit or clustered system.

For managed service term that applies to Share Hosting, review “What does Managed Shared Web Hosting mean?”.

The minimum services provided by the host facility (data center) to a client are: space, power feed, access to internet service, power and cooling. The facilities usually house IT equipment into rack cabinets (See “Server Cabinet”, “19-inch Rack” and “Tower Server Rack”), mount them into rack units, connect them to special types of power distribution units (PDU) and connect them to networking equipment (network switches) to provide them with Internet connectivity.

Some companies define “Cloud Server” for example as “on-demand virtual machine, created to deliver customizable performance and reliability”, although this is pretty much marketeer’s language. Please also be advised that billing a any virtual server hosting service (whatever it is labeled) on per minutes, per hour or per day basis doesn’t make it “Cloud”. What makes it a “Cloud Server” is the ability to scale up the allocated computing resources on demand.

To understand term “Cloud Hosting”, please read article “What does a Cloud Hosting Mean?“

OpenVZ virtualization technique is the basis of the popular commercial virtualization software Virtuozzo Containers owned by Parallels Inc. OpenVZ is licensed under the GPL version 2. It is also supported and sponsored by Parallels. The company does not offer commercial support for OpenVZ however.

Unlike other familiar virtualization technologies like Xen or Kernel-based Virtual Machine, the OpenVZ requires requires both the host os on the underlying physical server and Virtual Private Servers which run on top (guest OS) to be Linux. The VPS users can use different Linux OS distributions in their virtual instances. The VPS users can not run Windows or MacOS for example on a Linux based OpenVZ host server. Such machine requires reboot if the virtual environment processes get I/O hangs.

There is a certain performance advantage of OpenVZ based VPS compared to other form of virtualization. OpenVZ website says that, there is “only a 1–3% performance penalty for OpenVZ as compared to using a standalone server”.

OpenVZ is not considered as a “true virtualization” but as a technique that creates isolated containers (like FreeBSD Jails does). Other virtualization technologies like Xen, Kernel-based VM or VMWare virtualize the entire underlying server and allow the users of the Virtual Machines to run Operating systems (OS) different from the one of the physical machine. OpenVZ uses a single patched Linux kernel and therefore can run only Linux. However because it doesn’t have the overhead that a hypervisor do, and that’s it is considered as quite fast and efficient. The disadvantage is that all VPS function with the kernel version of the underlying physical server. Among other advantages is easy to allocate the unused RAM to any of the virtual servers, something which is not possible with full virtualization techniques.

OpenVZ based server system and the host VPS use a common file system. Each VPS instance  is a directory of files which is isolated using chroot. The new versions of OpenVZ also allow the container to have its own file system. Any VPS can be cloned by just copying the files in one directory to another and creating a config file for the VPS.

To find out more about OpenVZ, please visit http://wiki.openvz.org/Main_Page.

Apache is a open source HTTP Server management software and is probably the most popular web server automation program. It is developed and maintained by a large community of developers with the help of the Apache Software Foundation. The Apache is available for Unix, GNU, FreeBSD, Linux, Solaris, Novell, Mac OS X, Microsoft Windows  and other operating systems.

MySQL is a relational database management system (RDBMS), which when run on a server, provides multi-user access to a number of databases. There are more than 10 million servers that run MySQL.

PHP is a programming language designed for producing dynamic web pages and is used mainly in server-side application software. Perl and Python are also programing languages.