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To limit the size of client requests, the maxAllowedContentLength parameter can be modified in web.config, such as setting it to 104857600 (100MB), and synchronizing the maxRequestLength of ASP.NET at the same time; to reasonably set the connection timeout time, it can be modified through the IIS manager or appcmd.exe command, with the default of 120 seconds, and the API scenario is recommended to set it to 30-90 seconds; if the request queue is full, you can increase MaxClientConn and QueueLength, optimize application performance, and enable load balancing to relieve stress.

Configuring HTTP response headers in IIS to optimize cache and improve security can be achieved by setting cache-related headers and adding security response headers. 1. Set cache-related headers: By configuring the clientCache element in the web.config file, set the Cache-Control and Expires headers for static resources, for example, use cacheControlMaxAge to specify the cache time, and fine-grained control can also be performed for specific file types (such as .jpg), but avoid HTML page caching for too long. 2. Add security-related headers: Configure X-Content-Type-Optio through customHeaders in web.config

ToenableandcustomizedirectorybrowsinginIIS,firstinstallandenabletheDirectoryBrowsingfeatureviaServerManagerandIISManager;next,customizetheappearanceusingheaderandfooterHTMLsnippets;thenconfiguredefaultdocumentstopreventunintendeddirectorylistings;fin

VirtualdirectoriesandapplicationsinIISdifferinindependenceandconfiguration.1.Virtualdirectoriesactasaliasestoexternalcontent,sharingtheparentsite’sapplicationpoolandconfiguration,idealfororganizingstaticfileswithoutduplication.2.Applicationsrunindepe

SharedconfigurationinIISallowsmultipleserverstouseacentralizedapplicationHost.configfile,ensuringconsistencyacrossawebfarm.1.Itenablesallserverstopointtoasharedconfigurationlocation.2.SetupinvolvesusingaUNCpath,enablingthefeatureinIISManager,andimpor

Windows authentication is suitable for internal applications and is automatically authenticated through domain accounts; the steps are to open IIS Manager, select a site, enable Windows authentication, and ensure HTTPS is used. Forms authentication is suitable for custom login pages. You need to configure the login URL and timeout time in web.config, and develop a login page to verify users, encrypt your password and use HTTPS. Basic authentication is lightweight but not secure. It is only used when HTTPS is enabled. It needs to be enabled in IIS and cooperate with local or domain accounts. Password leakage is often caused by ignoring HTTPS.

Strengthening IIS security requires five steps: 1. Disable unnecessary functions and services, such as WebDAV, FTP, etc.; 2. Close the default website and test pages, delete or prohibit access to useless script directories; 3. Configure request filtering rules to prevent illegal extensions, directory traversal and super long URLs, and use URLs to rewrite and hide the real path; 4. Enable HTTPS and force jumps, and set security response headers such as HSTS, X-Content-Type-Options; 5. Regularly update system patches, enable logging and use tools to analyze abnormal access behavior. Through these measures, we can effectively prevent common attack methods such as SQL injection, XSS, directory traversal, and improve the overall security of the server.

MIME type is a mechanism by which the server identifies file content types, and missing or incorrect configuration can cause resource loading to fail. There are two main ways to manage MIME types with specific extensions in IIS: 1. Add or modify them through the IIS manager graphical interface; 2. Configure in the web.config file. Common MIME types that need to be added manually include .webmanifest, .woff2, .svg, .mp4 and .pdf. Notes include inheritance issues, IIS version differences and browser cache impact. Proper configuration is essential to ensure that modern web resources are loading properly.