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Web Servers : Apache Web server, IIS

What is a WebServer ?

Now lets us know what is a web server, it is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time. Web servers store, process and provide the webpages that are requested by the user. For e.g.: A user has a computer connected to internet, types www.h2kinfosys.com in the web browser like Internet explorer, firefox, chrome etc. The web server takes the request and process it by displaying the web page of h2kinfosys.com.

For huge software, the organization can have their own web servers, which is maintained by their own IT team or the task is given to some IT company. For simple web application, for e.g. a marketing website of a small business, a third party web server services can be purchased. We consider to examples of web servers: Apache Webserver, IIS.

Apache Web servers:

It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server. 

5: Workflow of apache web server | Download Scientific Diagram

As we call Apache webserver, it is not a physical server but rather software that runs on a server. Its job is to create a connection between the server and the browsers when visitors visit the websites while delivering files back and forth. Apache is customisable software. As it has a module based structure, these allow server administrators to turn additional functionalities on/off. Apache has various modules which include security modules, caching, URL re-writing, password authentication and more.

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Some common features in Apache include .htaccess, IPV6, FTP, HTTP/2, perl/Lua, WebDav, Load balancing, URL rewriting, session tracking. An Apache webserver can host multiple websites on the same server without separating the server machine and apache software for each websites. This concept is called as Virtual Host or VHost.

There are two types of Apache Virtual Host:

  1. Name-Based Virtual – Host
  1. Address-based virtual – Host

Name based virtual host is used to host multiple virtual sites in one IP address. By setting the IP address on apache requests of desired websites are received. IP or address based virtual hosting we need to set more IP addresses configured on the server. If the server has 10 IP addresses then 10 virtual hosts can be created. Apache webserver is widely used by web hosting companies for the purpose of providing virtual hosting. Apache machine differentiates between different hosts and reside on the same machine.

IIS Web servers:

IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable. The internet cannot survive without webservers. Webserver is process of hosting web applications. This allows to process messages that arrive through particular TCP ports. 

The two main processes of handling the web requests are : either handle by single thread or to spawn a new thread for each request. The thread per request model of which that IIS uses will grab a thread from a thread pool for each request. 

IIS is rich in features. IIS is used to host ASP.Net web applications and static websites. It can also be used as an FTP Server and extended to host web applications built on different platforms.

There are many built in authentication options such as Basic, ASP.Net and windows authentication. One of the key features of IIS is the application pool. An invaluable feature is remote management. IIS can be managed via the CLI using power Shell. IIS works through a various standard languages and protocols. HTML is to create different elements like text, buttons, and image placements, direct interactions and hyperlinks. Developers can create IIS websites with a number of tools, including WebDAV which can create and publish web content.

The Differences between Apache and IIS are:

  1. IIS comes as a package with windows and apache is an open software.
  2. While IIS runs only on the windows, Apache can run on different OS.
  3. IIS integrates with other Microsoft programs like .Net and ASP scripting language.
  4. IIS has help desk to handle most of the issues while support for the apache comes from the user community.
  5. The security features of IIS makes it safer than Apache.
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  1. Web server it is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time.
    For huge software, the organization can have their own web servers, which is maintained by their own IT team or the task is given to some IT company. For simple web application, for e.g. a marketing website of a small business, a third party web server services can be purchased. We consider to examples of web servers: Apache Webserver, IIS
    Apache Web servers:
    It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server.An Apache webserver can host multiple websites on the same server without separating the server machine and apache software for each websites. This concept is called as Virtual Host or VHost.

    There are two types of Apache Virtual Host:

    Name-Based Virtual – Host
    Address-based virtual – Host

    IIS Web servers:
    IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable. The internet cannot survive without webservers. Webserver is process of hosting web applications. This allows to process messages that arrive through particular TCP ports.
    IIS is rich in features. IIS is used to host ASP.Net web applications and static websites. It can also be used as an FTP Server and extended to host web applications built on different platforms.

    The Differences between Apache and IIS are:
    IIS comes as a package with windows and apache is an open software.
    While IIS runs only on the windows, Apache can run on different OS.
    IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    The security features of IIS makes it safer than Apache.

  2. Web server is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Apache Web servers are an open source of free software which gives powers many websites.
    Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server. IIS means Internet Information Services, which runs on the Microsoft Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable.
    The internet cannot survive without webservers. Webserver is process of hosting web applications. This allows to process messages that arrive through particular TCP ports.

  3. The Web Server (IIS) role in Windows Server 2012 provides a secure, easy-to-manage, modular and extensible platform for reliably hosting websites, services, and applications. With IIS 8 you can share information with users on the Internet, an intranet, or an extranet.

  4. Webserver is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time. Web servers store, process and provide the webpages that are requested by the user.
    It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server.
    There are two types of Apache Virtual Host:
    Name-Based Virtual – Host
    Address-based virtual – Host
    Name based virtual host is used to host multiple virtual sites in one IP address. By setting the IP address on apache requests of desired websites are received. IP or address based virtual hosting we need to set more IP addresses configured on the server. If the server has 10 IP addresses then 10 virtual hosts can be created. Apache webserver is widely used by web hosting companies for the purpose of providing virtual hosting. Apache machine differentiates between different hosts and reside on the same machine.
    IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable. The internet cannot survive without webservers. Webserver is process of hosting web applications. This allows to process messages that arrive through particular TCP ports.
    The two main processes of handling the web requests are : either handle by single thread or to spawn a new thread for each request. The thread per request model of which that IIS uses will grab a thread from a thread pool for each request.
    IIS is rich in features. IIS is used to host ASP.Net web applications and static websites. It can also be used as an FTP Server and extended to host web applications built on different platforms.
    The Differences between Apache and IIS are:
    IIS comes as a package with windows and apache is an open software.
    While IIS runs only on the windows, Apache can run on different OS.
    IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    The security features of IIS makes it safer than Apache.

  5. What is a Web Server ?
    It is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time. Web servers store, process and provide the webpages that are requested by the user.
    Apache Web servers:
    It is an open source of free software which powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is a very old and reliable web server.
    IIS Webservers:
    IIS means Internet Information Services, which runs on the Microsoft . Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable.
    The Differences between Apache and IIS are:
    IIS comes as a package with windows and apache is an open software.
    While IIS runs only on the windows, Apache can run on different OS.
    IIS integrates with other Microsoft programs like . Net and ASP scripting language.
    IIS has a help desk to handle most of the issues while support for the apache comes from the user community.
    The security features of IIS makes it safer than Apache.

  6. – Webserver is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time.
    – Web servers store, process and provide the webpages that are requested by the user. For e.g.: A user has a computer connected to internet, types http://www.h2kinfosys.com in the web browser like Internet explorer, firefox, chrome etc. The web server takes the request and process it by displaying the web page of h2kinfosys.com.
    Examples of web servers:
    1. Apache Webserver,
    2.IIS.
    Apache Webserver:
    – It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites.
    – It is a software that runs on a server. Its job is to create a connection between the server and the browsers when visitors visit the websites while delivering files back and forth.
    – it has a module based structure, these allow server administrators to turn additional functionalities on/off. Apache has various modules which include security modules, caching, URL re-writing, password authentication and more.
    – An Apache webserver can host multiple websites on the same server without separating the server machine and apache software for each websites. This concept is called as Virtual Host or VHost.
    There are two types of Apache Virtual Host:
    1. Name-Based Virtual – Host
    2. Address-based virtual – Host
    IIS webservers:
    – IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS.
    – IIS is rich in features. IIS is used to host ASP.Net web applications and static websites. It can also be used as an FTP Server and extended to host web applications built on different platforms.
    – There are many built in authentication options such as Basic, ASP.Net and windows authentication. One of the key features of IIS is the application pool. An invaluable feature is remote management.
    The Differences between Apache and IIS are:
    1. IIS comes as a package with windows and apache is an open software.
    2. While IIS runs only on the windows, Apache can run on different OS.
    3. IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    4. IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    5. The security features of IIS makes it safer than Apache.

  7. It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server we call Apache webserver, it is not a physical server but rather software that runs on a server. Its job is to create a connection between the server and the browsers when visitors visit the websites while delivering files back and forth. Apache is customizable software. As it has a module based structure, these allow server administrators to turn additional functionalities on/off. Apache has various modules which include security modules, caching, URL re-writing, password authentication and more.

    Some common features in Apache include .hatches, IPV6, FTP, HTTP/2, Perl/Lua, WebDAV, Load balancing, URL rewriting, session tracking. An Apache webserver can host multiple websites on the same server without separating the server machine and apache software for each websites. This concept is called as Virtual Host or VHost.er.
    There are two types of Apache Virtual Host:
    1. Name-Based Virtual – Host
    2. Address-based virtual – Host

  8. A web server acts as a middleman between the server and the client. Web servers store, process and provide the webpages that are requested by the user. For huge software, the organization can have their own web servers, which is maintained by their own IT team or the task is given to some other IT company. Examples of web servers are Apache and IIS web servers. IIS is from Microsoft and security features of IIS makes it safer to use than Apache. Apache HTTP server is the old server and it is owned by Apache Foundation. Web server is process of hosting web applications. IIS rubs only on the windows but Apache can run on different OS.

  9. Web server is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time.

    Apache Web Servers: It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache Foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server. As we call Apache web server, it is not a physical server but rather software that runs on a server. Its job is to create a connection between the server and the browsers when visitors visit the websites while delivering files back and forth. Apache is customizable software. There are 2 types of Apache Virtual Host:
    1. Name Based Virtual Host which is used to host multiple virtual sites in one IP address. Here by setting the IP address on apache requests of desired websites are received.
    2. Address Based Virtual Host where we need to set more IP addresses configured on the server. If the server has 10 IP address then 10 virtual hosts can be created.

    IIS Web Servers: IIS means Internet Information Services which runs on the Microsoft. Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable. The internet cannot survive without web servers. Web-servers is process of hosting web applications This allows to process messages that arrive through particular TCP ports. IIS is rich in features. IIS is used to host Asp.Net web applications and static websites. It can also be used as an FTP server and extended to host web applications built on different platforms.

    Key Difference Between Apache and IIS are:
    1. IIS comes as a package with windows and apache is an open software.
    2. While IIS runs only on the wndows, Apache can run on different OS.
    3. IIS integrates with other Microsoft programs like .Net and Asp scripting language.
    4. The security features of IIS makes it safer than Apache.
    5. IIS has help desk to handle most of the issues while support for the apache comes from the user community.

  10. What is IIS?
    IIS (Internet Information Services) is Microsoft’s web server offering, playing second fiddle to market leader Apache. As is expected of a core Microsoft product, it only runs and is bundled on Windows operating systems, but is otherwise free for use. It is a closed software product and supported solely by Microsoft.

    What is Apache?
    Apache, or to use its full royal title The Apache HTTP web server, is an open-source Web server application managed by the Apache Software Foundation. The server software is freely distributed, and the open-source license means users can edit the underlying code to tweak performance and contribute to the future development of the program – a major source of its beloved status among its proponents.

    Difference between IIS and Apache:
    IIS only runs on Windows. Apache comes from the community itself. IIS has a dedicated staff to answer most problems while support. Apache optimized most of the OS including UNIX, Apple’s OS X, Linux.

  11. A web server is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time. Web servers store, process and provide the webpages that are requested by the user. For e.g.: A user has a computer connected to internet, types http://www.h2kinfosys.com in the web browser like Internet explorer, firefox, chrome etc. The web server takes the request and process it by displaying the web page of h2kinfosys.com.
    Examples of web servers: Apache Webserver, IIS.:
    Apache Web servers:
    It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server.
    IIS Web servers:
    IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable. The internet cannot survive without webservers. Webserver is process of hosting web applications. This allows to process messages that arrive through particular TCP ports.
    The Differences between Apache and IIS are:
    IIS comes as a package with windows and apache is an open software.
    While IIS runs only on the windows, Apache can run on different OS.
    IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    The security features of IIS makes it safer than Apache.

  12. Webserver is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time. web browser like Internet explorer, fire fox, chrome etc. For huge software, the organization can have their own web servers, which is maintained by their own IT team. We consider to examples of web servers: Apache Webserver, IIS.
    Apache web server is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Apache has various modules which include security modules, caching, URL re-writing, password authentication and more. An Apache webserver can host multiple websites on the same server without separating the server machine and apache software for each web sites. This concept is called as Virtual Host or V Host. There are two types of Apache Virtual Host: 1. Name-Based Virtual Host 2. Address-based virtual – Host
    IIS web server means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable. IIS is rich in features. IIS is used to host ASP.Net web applications and static websites. It can also be used as an FTP Server and extended to host web applications built on different platforms.

  13. What is a WebServer ?
    Web servers store, process and provide the webpages that are requested by the user.
    Apache Web servers
    It is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server.
    There are two types of Apache Virtual Host:
    1. Name-Based Virtual – Host
    2. Address-based virtual – Host
    IIS Web servers
    IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS.
    The two main processes of handling the web requests are : either handle by single thread or to spawn a new thread for each request. The thread per request model of which that IIS uses will grab a thread from a thread pool for each request.
    The Differences between Apache and IIS are:
    1. IIS comes as a package with windows and apache is an open software.
    2. While IIS runs only on the windows, Apache can run on different OS.
    3. IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    4. IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    5. The security features of IIS makes it safer than Apache.

  14. A web server is software that serves websites on the internet, to achieve a particular goal. It acts as a middleman between the server and the client. For example, a user who has a computer connected to the internet types http://www.google.com in the web browser like Internet explorer, firefox, chrome, etc. The web server takes the request and processes it by displaying the web page of google.com. Examples of web servers are Apache Webserver, IIS, etc. There are some differences between Apache and IIS:
    1. IIS comes as a package with windows and apache is open software.
    2. While IIS runs only on windows, Apache can run on different OS.
    3. IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    4. IIS has a help desk to handle most of the issues while support for apache comes from the user community.
    5. The security features of IIS make it safer than Apache.

  15. web server is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. there are 2 types of web servers are there.
    1. Apache web server.
    2. IIS webserver.
    The Differences between Apache and IIS are:
    IIS comes as a package with windows and apache is an open software.
    While IIS runs only on the windows, Apache can run on different OS.
    IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    The security features of IIS makes it safer than Apache.

  16. Web Server is software which server websites on the internet, to achieve a particular goal. I t acts as a middleman between the server and the client. servers are huge computers that stores large amount of data and are accessible by many users at a time. They store, process and provided the web pages that are requested by user.

    Apache Web Server: It’s old and reliable server. Apache is customisable software. It’s not physical server but a software that runs on server. Two types of Apache Virtual Host are:
    1. Name—based—virtual—-host
    2. address—-based—virtual—host
    Apache has various modules like caching, URL re-writing, password authentication and more.

    IIS= Internet Information Services which runs on the Microsoft .Net platform on the window operating system. While it’s possible to run IIS on Linux and Macs using Mono but it’s unstable. The internet can’t survive without web servers. Two main process of handling web req:
    1. either handle by single thread
    2. OR to spawn a new thread for each request.
    The thread per request model of which that IIS uses will grab a thread from a thread pool for each request.

    Difference between Apache and IIS:
    1. IIS comes as package with windows and Apache is an open software.
    2. While IIS runs only on windows, Apache can run on different Operating Systems.
    3. IIS integrates with other Microsoft like .NET OR ASP languages
    4. IIS has help desk to handle most of the issues. Apache relies on support from user community.
    5. The security feature of IIS makes it safer than Apache.

  17. Webserver is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Apache HTTP or apache web servers is an open source of free software which powers many websites. Its job is to create a connection between the server and browsers when visitors visit the websites whilep.. delivering files back and forth. Apache is customizable software. It has a module based structure, these allow server administrators to turn additional functionalities o/off. An apache webserver can host multiple websites on the same server without separating the server machine an apache software for each website. This concept is called as virtual host or VHost. There are two types of apache virtual host. They are name based virtual host and address based virtual host. Name based host is used to host multiple virtual sites in one IP address. Address based virtual hosting we need to set more IP addresses configured on the server.

    IIS web servers means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. Webserver is a process of hosting web applications. The two main processes of handling the web requests are: either handle by single thread or spawn a new thread for each request. IIS is rich in features. IIS is used to host ASP. Net web applications and static websites. It can also be used as an FTP server and extended to host web applications built on different platforms. One of the key features of IIS is the application pool. An invaluable feature is remote management. IIS can be managed via the CLI using power Shell. IIS works through a various standard languages and protocols.
    The differences between Apache and IIS are:
    1. IIS comes as a package with windows and apache is an open software.
    2. While IIS runs only on the windows, Apache can run on different OS.
    3. IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    4. IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    5. The security features of IIS makes it safer than Apache.

  18. It is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time.
    For huge software, the organization can have their own web servers, which is maintained by their own IT team or the task is given to some IT company.
    Examples of web servers: Apache Webserver, IIS.
    Apache Web servers:
    Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server.
    Apache has various modules which include security modules, caching, URL re-writing, password authentication and more.
    Some common features in Apache include .htaccess, IPV6, FTP, HTTP/2, perl/Lua, WebDav, Load balancing, URL rewriting, session tracking.
    There are two types of Apache Virtual Host:
    Name-Based Virtual – Host
    Address-based virtual – Host
    IIS Web servers:
    IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable.
    The two main processes of handling the web requests are : either handle by single thread or to spawn a new thread for each request.
    IIS is rich in features. IIS is used to host ASP.Net web applications and static websites. It can also be used as an FTP Server and extended to host web applications built on different platforms.
    The Differences between Apache and IIS are:
    1.IIS comes as a package with windows and apache is an open software.
    2.While IIS runs only on the windows, Apache can run on different OS.
    3.IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    4.IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    5.The security features of IIS makes it safer than Apache.

  19. A web server is a system that delivers content or services to end users over the internet. A web server consists of a physical server, server operating system (OS), and software. A web server is also known as an internet server. Web servers store, process, and provide the web pages that are requested by the user. For e.g.: A user has a computer connected to the internet, and types http://www.google.com in a web browser like Internet explorer, firefox, chrome, etc. The web server takes the request and processes it by displaying the web page of google.com.We consider two examples of web servers: Apache Webserver and IIS
    Apache is a remarkable piece of application software. It is the most widely used Web Server application in the world with more than 50% share in the commercial web server market. Apache is the most widely used Web Server application in Unix-like operating systems but can be used on almost all platforms such as Windows, OS X, OS/2, etc. The word, Apache, has been taken from the name of the Native American tribe ‘Apache’, famous for its skills in warfare and strategy making.
    IIS: IIS is a web server specific to the Microsoft .NET platform. As such, it is also referred to as Windows Web Server.
    IIS is rich in features. IIS is used to host ASP.Net web applications and static websites. It can also be used as an FTP Server and extended to host web applications built on different platforms one key feature of IIS is the application pool. We’ll have to take a closer look at the application pool, as it’s a critical component of the IIS process model.
    An invaluable feature is a remote management. IIS can also be managed via the CLI or using PowerShell. You can script everything, which is great if you like the power that comes with being able to do so.
    The Differences between Apache and IIS are:
    * IIS comes as a package with windows and apache is open software.
    * While IIS runs only on windows, Apache can run on different OS.
    * IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    * IIS has a help desk to handle most of the issues while support for apache comes from the user community.
    * The security features of IIS make it safer than Apache.

  20. A web server is a software which serves websites on the internet, to achieve a particular goal it acts as a middleman between the server and the client. Servers are huge computers that store large amount of data and are accessible by many users at a time. Web servers store, process and provide the webpages that are requested by the user. 
    For huge software, the organization can have their own web servers, which is maintained by their own IT team or the task is given to some IT company. For simple web application, for e.g. a marketing website of a small business, a third party web server services can be purchased. We consider to examples of web servers: Apache Webserver, IIS.
    Apache Web server is an open source of free software which gives powers many websites. Its official name is Apache HTTP Server which is maintained by Apache foundation. Its main job is serving the website owners, the content of the websites. It is very old and reliable web server. 

    Some common features in Apache include .htaccess, IPV6, FTP, HTTP/2, perl/Lua, WebDav, Load balancing, URL rewriting, session tracking. An Apache webserver can host multiple websites on the same server without separating the server machine and apache software for each websites. This concept is called as Virtual Host or VHost.
    There are two types of Apache Virtual Host:
    * Name-Based Virtual – Host
    * Address-based virtual – Host

    IIS means Internet Information Services, which runs on the Microsoft .Net platform on the windows OS. While it is possible to run IIS on Linux and Macs using Mono, this is considered as unstable. The internet cannot survive without webservers. Webserver is process of hosting web applications. This allows to process messages that arrive through particular TCP ports. 
    The two main processes of handling the web requests are : either handle by single thread or to spawn a new thread for each request. The thread per request model of which that IIS uses will grab a thread from a thread pool for each request. 

    The Differences between Apache and IIS are:
    * IIS comes as a package with windows and apache is an open software.
    * While IIS runs only on the windows, Apache can run on different OS.
    * IIS integrates with other Microsoft programs like .Net and ASP scripting language.
    * IIS has help desk to handle most of the issues while support for the apache comes from the user community.
    * The security features of IIS makes it safer than Apache.

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