The best prices for official DELL PowerEdge R760 servers in Ukraine.
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Available server models from the warehouse in Kyiv:
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Server Dell PowerEdge R760 - Intel Xeon Silver 4510 2.4-4.1Ghz 12 Cores
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Server Dell PowerEdge R760 - Intel Xeon Silver 4514Y 2.0-3.4Ghz 16 Cores
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Server Dell PowerEdge R760 - Intel Xeon Gold 6526Y 2.8-3.9Ghz 16 Cores
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Server Dell PowerEdge R760 - Intel Xeon Gold 5420+ 2.0-4.1Ghz 28 Cores
Web servers and application servers are technologies that enable the exchange of data and services over the Internet. The client-server architecture is the underlying mechanism of the Internet. When you visit a website or application, your browser (as the client) requests data from a remote server and displays the response. A web server is a software component that serves static data, such as images, files, and text, in response to client requests. An application server adds business logic to compute the web server's response. The two terms are used interchangeably, and the most popular server software solutions today are hybrid web application servers.
How they work: web server or application server
Web servers and application servers have different independent processes. However, they are invisible to the end user.
How a web server works
A web server is the technology that hosts the code and data of a website. When you type a URL into a browser, that URL is actually an identifier for the address of the web server.
Your browser and web server interact in the following way.
The browser uses the URL to look up the server's IP address.
The browser sends an HTTP request to retrieve information
The web server communicates with the database server to retrieve relevant data.
A web server returns static content, such as HTML pages, images, videos, or files, to the browser in an HTTP response.
The browser then displays the information to you.
A website that hosts static content, such as blogs, header images, or articles, can run on a web server. However, most websites and web applications are much more interactive and require an application server.
How an application server works
An application server extends the capabilities of a web server by supporting dynamic content generation, application logic, and integration with various resources. It provides a runtime environment in which application code can run and interact with other software components, such as messaging systems and databases. It uses business logic to transform data more efficiently than a web server.
When you try to access interactive content on a website, the process occurs as follows.
The browser uses the URL to look up the server's IP address.
The browser sends an HTTP request to retrieve information
The web server passes the request to the application server
The application server applies business logic and interacts with other servers and third-party systems to fulfill the request.
The application server renders the new HTML page and returns it in response to the web server.
The web server returns a response to the browser
The browser displays the information for you
In the example of an e-commerce website, when you add items to a cart or place an order, you are interacting with the application server.
Key Differences: Web Server vs. Application Server
There are several key differences between web servers and application servers.
Tasks covered
A web server hosts websites and provides responses to simple requests. Web servers also log server activity and allow server-side scripting.
On the other hand, application servers have a more complex set of tasks. Application servers use business logic to create dynamic content by connecting to corporate systems, services, and databases.
Protocols used
The primary protocol used by web servers is HTTP. However, various web servers also support FTP and Simple Mail Transfer Protocol (SMTP). These two protocols facilitate the storage and transfer of files, as well as e-mail.
In addition to the protocols used by web servers, application servers use additional protocols to communicate with other software components. For example, they can use remote method invocation (RMI) and remote procedure call (RPC).
Content types
Web servers mostly serve static content. Static content is content that the server does not need to modify or process before sending. For example, image files (such as PNG, GIF, and JPEG), downloadable documents (PDF files), videos, and HTML files are static content.
Application servers primarily serve dynamic content. Dynamic content is content that changes based on how the user interacts with it. For example, dynamically generated reports, customizable data views, personalized user interfaces, database results, and rendered HTML code are all dynamic content.
Multithreading
Threads on a server are separate paths of work that enable parallel processing of tasks. In multithreading, the server creates and runs multiple threads simultaneously, each of which processes a separate task or part of a task. Multithreading support helps deliver web content faster while handling large amounts of web traffic.
Most web servers do not support multithreading. Web servers place each new connection request on a queue and use an event loop to track new entries and dequeues. To improve efficiency, the server processes requests using non-blocking I/O and callbacks. Non-blocking operations and an event-driven architecture allow web servers to handle parallel connections.
Application servers use multithreading to provide high scalability and efficiency. When a request requires external resources, the application server uses separate threads to cover these interactions. It can handle multiple threads at the same time, servicing many client interactions in parallel.
How do application servers and web servers interact?
Application servers and web servers work together to process client requests and deliver the desired content to the user. The web server always receives a new request first. If it can generate the information itself, it does so and sends an HTTP response. It also checks to see if the cache contains the data that the user requested.
If the web server cannot access the content that the user wants, it forwards the request to the application server. The application server processes the data and uses business logic to provide the correct information. The request is then passed back to the web server, which delivers it to the user. In some architectures, application servers can also be configured to handle HTTP requests themselves.
How can we help?
Server Solutions sells Dell PowerEdge R760 and Dell PowerEdge R760xs servers throughout Ukraine, our clients include small, medium and large businesses. If you or your company needs advice and the purchase of quality server equipment, then you should contact us.