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ThinkHost – The progressive web hosting company

ThinkHost was founded in 1999 with a revolutionary new concept: high quality web hosting services, powered by 100% renewable energy.

Today, ThinkHost Web Hosting is a leader in environmentally friendly web hosting. We specialize in extremely reliable, well-supported hosting solutions for non-profits, community groups, and small and medium sized businesses, worldwide.

They’re successful because they walk their talk. They’ve grown by encouraging feedback from their clients—and then acting on it, in line with their unwavering vision of environmental sustainability and social change. This approach has seen like-minded people from all over the world joining them, not just for their excellent standard of web hosting, but also because they want to participate in the good that ThinHost does.

Technology savvy

Green doesn’t have to mean funky. ThinkHost has a reputation for technology leadership. Their services are backed by a world-class outsourced network and a global team of dedicated, highly skilled support engineers. They provide solid support for all leading Web technologies, such as PHP, MySQL, Microsoft FrontPage and PERL, and they’re one of the few hosts who offer access to your account via SSH. THinkHost provide many Apache modules such as mod_alias and mod_rewrite, plus full .htaccess control. Add to all this powerful tools such as phpMyAdmin and secure web mail; and you have one of the most flexible hosting packages around.

Reliability

Housed on high-performance Unix-based servers, in secure world-class data centers, with UPS backup power, backup generators, and N+1 redundant HVAC systems, their services—and your business—are safe. Server up time is 100%, guaranteed. So your mission critical data and services are immediately accessible, all the time.

Social responsibility

ThinkHost’s mission extends to service in the real world. So they offer discounted web hosting to a number of non-profit community-based organizations and progressive companies. On top of that, they offer free hosting for selected USA-based community groups focused on peace, environment or social justice.

Committment to the environment

ThinkHost believes business excellence can be combined with care of the planet. So all of their hosting plans are 100% wind/solar powered. Added to that, most of their team members “telecommute”, saving thousands of gallons of fuel annually. They use little in the way of paper, as data is stored electronically. Most of their staff use notebook computers and low wattage lighting,reducing electricity requirements. Learn more about their commitment to a green future in their social change section.

Linux Based Web Hosting

What is Linux/Unix-based web hosting?

It means hosting that is provided on Linux/Unix operating systems platforms. There isn’t much difference between these two types of operating systems because Linux/Unix is an improved version of Linux/Unix operating system. When just applying for web hosting companies for web hosting that is based on Linux operating system it doesn’t matter which one you are using on your computer as it is commensurable with any operating system.

Usability

Some years ago Linux operating system used to be available only for professionals and if you were not an experienced user you had no future with this OS. In the last couple of years the situation has changed. Providers have done their best to make users’ web sites administrating more comfortable and easier. In case you’re just a beginner you’ll find friendly control panels that include Web- interface. And if you are an experienced user you can control your site by means of shell.

Reliability

Experts claim that Unix-based platform is one of the most reliable ones but it will mainly depend on maintenance stuff professionalism. Thus quality and stability of Linux-based web hosting won’t depend on some sudden system bugs and the operating system consistency itself secures your web site operating dependability.

Functionality

In this area Linux differs the most from other popular platforms. It can handle a lot of processes that happen at the same time. This gives you a possibility to get more from the server.
What Scripting Languages Are Available For Unix?
Unix supports a wide variety of application languages, more than any other operating system. The most common applications of such kind include C, C++, Shell, Perl, Tcl, Python, Java and PHP.
What Databases Does Unix Support?
Databases available for Unix are mSQL and mySQL. The one you choose would depend on your own needs and your Host Provider’s offers. This is important for you to review when choosing a hosting company.

Cost

Linux operating system was developed by Linus Torvalds as an alternative to other operating systems and is being improved by many specialists all around the world. Most of its versions are free of charge. This circumstance makes Linux-based hosting much cheaper than any other. As for Linux versions they are sometimes called Linux Distributions. The most popular Distributions are RedHat and Mandrake. Which are easy to install have a lot of different utilities and suitable for any web hosting type.

Why choose Linux/Unix-based hosting?

So, as it was mentioned before using this platform is cheaper and more convenient than others. All existent scripts, like PHP, function best when using the Linux-based web hosting. Linux/Unix based web hosting upgrading possibilities increase when using Shell and Telnet access. The Linux/Unix-based platform is probably the most stable and reliable.

A dedicated hosting service, dedicated server, or managed hosting service is a type of Internet hosting in which the client leases an entire server not shared with anyone. This is more flexible than shared hosting, as organizations have full control over the server(s), including choice of operating system, hardware, etc. Server administration can usually be provided by the hosting company as an add-on service. In some cases a dedicated server can offer less overhead and a larger return on investment. Dedicated servers are most often housed in data centers, similar to colocation facilities, providing redundant power sources and HVAC systems. In contrast to collocation, the server hardware is owned by the provider and in some cases they will provide support for your operating system or applications.

Operating system support

Availability, price and employee familiarity often determines which operating systems are offered on dedicated servers. Variations of Linux (open source operating systems) are often included at no charge to the customer. Commercial operating systems include Microsoft Windows Server, provided through a special program called Microsoft SPLA. Red Hat Enterprise is a commercial version of Linux offered to hosting providers on a monthly fee basis. The monthly fee provides OS updates through the Red Hat Network using an application called yum. Other operating systems are available from the open source community at no charge. These include CentOS, Fedora Core, Debian, and many other Linux distributions or BSD systems FreeBSD, NetBSD, OpenBSD.

Support for any of these operating systems typically depends on the level of management offered with a particular dedicated server plan. Operating system support may include updates to the core system in order to acquire the latest security fixes, patches, and system-wide vulnerability resolutions. Updates to core operating systems include kernel upgrades, service packs, application updates, and security patches that keep server secure and safe. Operating system updates and support relieves the burden of server management from the dedicated server owner.

Bandwidth and connectivity

Bandwidth refers to the data transfer rate or the amount of data that can be carried from one point to another in a given time period (usually a second) and is often represented in bits (of data) per second (bit/s). For example, visitors to your server, web site, or applications utilize bandwidth as the traffic moves from your server to the Internet and vice versa. Connectivity refers to the “access providers” that supply bandwidth, or data transfer rate, through various connection points across a network or footprint to one or multiple data centers where dedicated servers are housed.

Bandwidth measurements are defined (per telecom standards) as the following:

* First – 95th (measured using average bits and speed of transfer)
* Second – Unmetered (measured in speed or bits)
* Third – Total Transfer (measured in bytes transferred)

95th Method: line speed, billed on the 95th percentile, average or peak usage, refers to the speed in which data flows from the server or device. Line speed is measured in bits per second (or kilobits per second, megabits per second or gigabits per second).

Unmetered Method: The second bandwidth measurement is unmetered service where providers cap or control the “top line” speed for a server. Top line speed in unmetered bandwidth is the total Mbit/s allocated to the server and configured on the switch level. For example, if you purchase 10 Mbit/s unmetered bandwidth, the top line speed would be 10 Mbit/s. 10 Mbit/s would result in the provider controlling the speed transfers take place while providing the ability for the dedicated server owner to not be charged with bandwidth overages. Unmetered bandwidth services usually incur an additional charge.

Total Transfer Method: Some providers will calculate the Total Transfer, the measurement of actual data leaving and arriving, measured in bytes. Measurement between providers varies, though it is either the total traffic in, the total traffic out, whichever is the greater or the sum of the two.

One of the reasons for choosing to outsource dedicated servers for web hosting is the availability of high powered networks from multiple providers. As a dedicated server provides you with quality web hosting by utilizing massive amounts of bandwidth, they are able to secure lower volume based pricing to include a multi-provider blend of bandwidth. To achieve the same type of network without a multi-provider blend of bandwidth, a large investment in core routers, long term contracts, and expensive monthly bills would need to be in place. The expenses needed to develop a network without a multi-provider blend of bandwidth does not make sense economically for hosting providers.

Many web host’s dedicated server providers include a service level agreement based on network uptime. Some dedicated server hosting providers offer a 100% uptime guarantee on their network. By securing multiple vendors for connectivity and using redundant hardware, providers are able to guarantee higher uptimes; usually between 99-100% uptime if they are a higher quality provider. One aspect of higher quality providers is they are most likely to be multi-homed across multiple quality uplink providers, which in turn, provides significant redundancy in the event one goes down in addition to potentially improved routes to destinations.

Bandwidth consumption over the last several years has shifted from a per megabit usage model to a per gigabyte usage model. Bandwidth was traditionally measured in line speed access that included the ability to purchase needed megabits at a given monthly cost. As the shared hosting model developed, the trend towards gigabyte or total bytes transferred, replaced the megabit line speed model so dedicated server providers started offering per gigabyte.

Prominent players in the quality web hosting dedicated server market offer large amounts of bandwidth ranging from 500 gigabytes to 3000 gigabytes using the “overselling” model. It is not uncommon for major players to provide dedicated servers with 1Terabyte (TB) of bandwidth or higher. Usage models based on the byte level measurement usually include a given amount of bandwidth with each server and a price per gigabyte after a certain threshold has been reached. Expect to pay additional fees for bandwidth overage usage. For example, if a dedicated server has been given 3000 gigabytes of bandwidth per month and the customer uses 5000 gigabytes of bandwidth within the billing period, the additional 2000 gigabytes of bandwidth will be invoiced as bandwidth overage. Each provider has a different model for billing. As of yet, no industry standards have been set.

Looking to buy some quality VPS web hosting? Here is what you need to know:

A virtual private server (VPS, also referred to as Virtual Dedicated Server or VDS) is a method of partitioning a physical server computer into multiple servers such that each has the appearance and capabilities of running on its own dedicated machine. Each virtual server can run its own full-fledged operating system, and each server can be independently rebooted.

The practice of partitioning a single server so that it appears as multiple servers has long been common practice in mainframe computers, but has seen a resurgence lately with the development of virtualization software and technologies for other architectures.

Contents:

The physical server boots normally. It then runs a program that boots each virtual server within a virtualization environment (similar to an emulator). The virtual servers have no direct access to hardware and are usually booted from a disk image.

There are two kinds of virtualizations: software based and hardware based. In a software based virtualization environment, the virtual machines share the same kernel and actually require the main node’s resources. This kind of virtualization normally has many benefits in a quality web hosting environment because of quota incrementing and decrementing in real time with no need of restarting the node. The main examples are Xen, Virtuozzo, Vserver, and OpenVZ (which is the open source and development version of Parallels Virtuozzo Containers).

In a hardware based virtualization, the virtualization mechanism partitions the real hardware resources. In typical implementations, no burst and/or realtime quota modification is possible; the limits are hard and can only be modified by restarting a virtual machine instance. This kind of environment is potentially more secure in the sense that it is less subject to “Quality of Service crosstalk” between VM instances; on the other hand, its security is typically dependent on the correctness of a larger and more complicated Trusted Computing Base. It is more commonly used in enterprise/commercial deployments. Examples include Microsoft Virtual Server, VMware ESX Server, and Xen.

Uses

Virtual private servers bridge the gap between shared quality web hosting services and dedicated web hosting services, giving independence from other customers of the VPS service in software terms but at less cost than a physical dedicated server. As a VPS runs its own copy of its operating system, customers have superuser-level access to that operating system instance, and can install almost any software that runs on the OS. Certain software does not run well in a virtualized environment, including firewalls, anti-virus clients, and indeed virtualizers themselves; some VPS providers place further restrictions, but they are generally lax compared to those in shared hosting environments. Due to the number of virtualization clients typically running on a single machine, a VPS generally has limited processor time, RAM, and disk space.

Due to their isolated nature, VPSs have become common sandboxes for possibly-insecure public services or update testing. For example, a single physical server might have two virtual private servers running: one hosting the production-level (live) website, and a second which houses a copy of it. When updates to crucial parts of software need to be made, they can be tested in the second VPS, allowing for detailed testing to be conducted without requiring several physical servers.

Virtual private servers are also sometimes employed as honeypots, allowing a machine to deliberately run software with known security flaws without endangering the rest of the server. Multiple honeypots can be quickly set up via VPSs in this fashion.

Virtual private server web hosting

A growing number of companies offer virtual private server hosting, or virtual dedicated server hosting as an extension for Web hosting services. Some web hosting companies call a Virtual Private Server a Virtual Dedicated Server/Dynamic Dedicated Server or the other way around.

VPS Quality Web Hosting is administered in several ways:

Managed Hosting:

The hosting provider takes an active role in monitoring and administering your hosting services.

Unmanaged Hosting:

The customer is left to monitor and administer their own server.

Unmetered Hosting:

Similar to unmanaged hosting but a fixed bitrate is offered so that it is not possible to exceed a monthly budget.

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So you’ve heard of web hosting right? You may have even tried a couple of web hosting sites. But what’s out there? What are all the different types of web hosting?

Here is a detailed explanation of the different types of web hosting:

Free Web hosting:

Free web hosting is offered by different companies with limited services, sometimes advertisement-supported web hosting, and is often limited when compared to paid hosting.

Shared Web hosting:

One’s Web site is placed on the same server as many other sites, ranging from a few to hundreds or thousands. Typically, all domains may share a common pool of server resources, such as RAM and the CPU. The features available with this type of service can be quite extensive. A shared website may be hosted with a reseller.

Reseller web hosting:

Allows clients to become web hosts themselves. Resellers could function, for individual domains, under any combination of these listed types of hosting, depending on who they are affiliated with as a provider. Resellers’ accounts may vary tremendously in size: they may have their own virtual dedicated server to a collocated server. Many resellers provide a nearly identical service to their provider’s shared hosting plan and provide the technical support themselves.

Virtual Dedicated Server:

Known as a Virtual Private Server (VPS for short) divides server resources into virtual servers, where resources can be allocated in a way that does not directly reflect the underlying hardware. VPS will often be allocated resources based on a one server to many VPSs relationship, however virtualisation may be done for a number of reasons, including the ability to move a VPS container between servers. The users may have root access to their own virtual space. This is also known as a virtual private server or VPS. Customers are sometimes responsible for patching and maintaining the server.

Dedicated Web hosting:

The user gets his or her own Web server and gains full control over it (root access for Linux/administrator access for Windows); however, the user typically does not own the server. Another type of Dedicated hosting is Self-Managed or Unmanaged. This is usually the least expensive for Dedicated plans. The user has full administrative access to the box, which means the client is responsible for the security and maintenance of his own dedicated box.

Managed hosting:

The user gets his or her own Web server but is not allowed full control over it (root access for Linux/administrator access for Windows); however, they are allowed to manage their data via FTP or other remote management tools. The user is disallowed full control so that the provider can guarantee quality of service by not allowing the user to modify the server or potentially create configuration problems. The user typically does not own the server. The server is leased to the client.
Colocation web hosting service: similar to the dedicated web hosting service, but the user owns the colo server; the hosting company provides physical space that the server takes up and takes care of the server. This is the most powerful and expensive type of the web hosting service. In most cases, the colocation provider may provide little to no support directly for their client’s machine, providing only the electrical, Internet access, and storage facilities for the server. In most cases for colo, the client would have his own administrator visit the data center on site to do any hardware upgrades or changes.

Cloud hosting:

Is a new type of hosting platform that allows customers powerful, scalable and reliable hosting based on clustered load-balanced servers and utility billing. Removing single-point of failures and allowing customers to pay for only what they use versus what they could use.
Clustered hosting:

Having multiple servers hosting the same content for better resource utilization. Clustered Servers are a perfect solution for high-availability dedicated hosting, or creating a scalable web hosting solution. A cluster may separate web serving from database hosting capability.

Grid hosting:

This form of distributed hosting is when a server cluster acts like a grid and is composed of multiple nodes.

Home server:

Usually a single machine placed in a private residence can be used to host one or more web sites from a usually consumer-grade broadband connection. These can be purpose-built machines or more commonly old PCs. Some ISPs actively attempt to block home servers by disallowing incoming requests to TCP port 80 of the user’s connection and by refusing to provide static IP addresses. A common way to attain a reliable DNS hostname is by creating an account with a dynamic DNS service. A dynamic DNS service will automatically change the IP address that a URL points to when the IP address changes.