Microsoft IIS vs nginx

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Microsoft IIS vs nginx: What are the differences?

What is Microsoft IIS? A web server for Microsoft Windows. Internet Information Services (IIS) for Windows Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable and open architecture is ready to handle the most demanding tasks.

What is nginx? A high performance free open source web server powering busiest sites on the Internet. nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.

Microsoft IIS and nginx can be categorized as "Web Servers" tools.

"Great with .net" is the top reason why over 77 developers like Microsoft IIS, while over 1437 developers mention "High-performance http server" as the leading cause for choosing nginx.

nginx is an open source tool with 9.1K GitHub stars and 3.43K GitHub forks. Here's a link to nginx's open source repository on GitHub.

Airbnb, Uber Technologies, and Spotify are some of the popular companies that use nginx, whereas Microsoft IIS is used by Intuit, Accolade, and CampusBookRentals. nginx has a broader approval, being mentioned in 8669 company stacks & 2556 developers stacks; compared to Microsoft IIS, which is listed in 1498 company stacks and 312 developer stacks.

- No public GitHub repository available -

What is Microsoft IIS?

Internet Information Services (IIS) for Windows Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable and open architecture is ready to handle the most demanding tasks.

What is nginx?

nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.
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      What are some alternatives to Microsoft IIS and nginx?
      Apache Tomcat
      Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations.
      SharePoint
      It empowers teamwork with dynamic and productive team sites for every project team, department, and division. Share and manage content, knowledge, and applications to empower teamwork, quickly find information, and seamlessly collaborate across the organization.
      Apache HTTP Server
      The Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Originally designed as a replacement for the NCSA HTTP Server, it has grown to be the most popular web server on the Internet.
      OpenResty
      OpenResty (aka. ngx_openresty) is a full-fledged web application server by bundling the standard Nginx core, lots of 3rd-party Nginx modules, as well as most of their external dependencies.
      LiteSpeed
      It is a drop-in Apache replacement and the leading high-performance, high-scalability server. You can replace your existing Apache server with it without changing your configuration or operating system details. As a drop-in replacement, it allows you to quickly eliminate Apache bottlenecks in 15 minutes with zero downtime.
      See all alternatives
      Decisions about Microsoft IIS and nginx
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      How developers use Microsoft IIS and nginx
      Avatar of MaxCDN
      MaxCDN uses nginxnginx

      The original API performed a synchronous Nginx reload after provisioning a zone, which often took up to 30 seconds or longer. While important, this step shouldn’t block the response to the user (or API) that a new zone has been created, or block subsequent requests to adjust the zone. With the new API, an independent worker reloads Nginx configurations based on zone modifications.It’s like ordering a product online: don’t pause the purchase process until the product’s been shipped. Say the order has been created, and you can still cancel or modify shipping information. Meanwhile, the remaining steps are being handled behind the scenes. In our case, the zone provision happens instantly, and you can see the result in your control panel or API. Behind the scenes, the zone will be serving traffic within a minute.

      Avatar of AngeloR
      AngeloR uses Microsoft IISMicrosoft IIS

      This is a legacy system requirement. We have some portions of our website written in PHP. Normally this wouldn't be an issue but at the time they decided to use PHP+Windows they were also trying to use MSSQL databases (All the microsoft influence was due to some azure credits the company received early on). The particular driver they ended up picking forced them into using the mssql_* functions instead of PDO. This meant that the majority of the site used these rather outdated calls and replacing them was a rather large endeavour. So while we migrate some of the PHP backend away to various node.js api systems we are simply sustaining the existing PHP portions.

      Avatar of Cloudcraft
      Cloudcraft uses nginxnginx

      Nginx serves as the loadbalancer, router and SSL terminator of cloudcraft.co. As one of our app server nodes is spun up, an Ansible orchestration script adds the new node dynamically to the nginx loadbalancer config which is then reloaded for a zero downtime seamless rolling deployment. By putting nginx in front or whatever web and API servers you might have, you gain a ton of flexibility. While previously I've cobbled together HAProxy and Stun as a poor man's loadbalancer, nginx just does a much better job and is far simpler in the long run.

      Avatar of datapile
      datapile uses nginxnginx

      Used nginx as exactly what it is great for: serving static content in a cache-friendly, load balanced manner.

      It is exclusively for production web page hosting, we don't use nginx internally, only on the public-facing versions of static sites / Angular & Backbone/Marionette applications.

      Avatar of Pēteris Caune
      Pēteris Caune uses nginxnginx

      We use NGINX both as reverse HTTP proxy and also as a SMTP proxy, to handle incoming email.

      We previously handled incoming email with Mandrill, and then later with AWS SES. Handling incoming email yourself is not that much more difficult and saves quite a bit on operational costs.

      Avatar of Wirkn Inc.
      Wirkn Inc. uses nginxnginx

      NGINX sits in front of all of our web servers. It is fantastic at load balancing traffic as well as serving as a cache at times when under massive load. It's a robust tool that we're happy to have at the front lines of all Wirkn web apps.

      Avatar of Performance Assessment Network (PAN)
      Performance Assessment Network (PAN) uses Microsoft IISMicrosoft IIS

      Web server for our 9 web applications and associated web services and external integrations

      Avatar of David Flynn
      David Flynn uses Microsoft IISMicrosoft IIS

      We host our ASP.NET Core APIs on Windows Server 2016 / IIS.

      Avatar of Yue Wang
      Yue Wang uses Microsoft IISMicrosoft IIS

      Web Server. Deployed on Windows 2012 r2.

      Avatar of Proactima Solutions AS
      Proactima Solutions AS uses Microsoft IISMicrosoft IIS

      Our web frontends are running on IIS

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