HighCPUusageinIISworkerprocessesistypicallycausedbyinefficientcode,poorconfiguration,orunexpectedtrafficpatterns.Todiagnosetheissue,firstidentifythespecificw3wp.exeprocessusinghighCPUviaTaskManagerorResourceMonitoranddetermineitsassociatedapplication

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.

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.

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

Yes,youcanuseARRwithIISasareverseproxybyfollowingthesesteps:firstinstallARRandURLRewriteviaWebPlatformInstallerormanually;nextenableproxyfunctionalityinIISManagerunderARRsettings;thenconfigurereverseproxyrulestospecifywhichrequeststoforwardtobackends

When configuring dynamic compression in IIS, selecting content types reasonably can improve performance. First enable the dynamic compression module, install and configure web.config or IIS manager through the server manager. Secondly, set appropriate content types, such as HTML, CSS, JavaScript, and JSON, text content is suitable for compression, while pictures and videos are not suitable. Finally, pay attention to the impact of client compatibility and performance, monitor CPU load, client support status and small file compression effects, and adjust the configuration based on actual traffic to obtain the best benefits.

ToenableandcustomizedirectorybrowsinginIIS,firstinstallandenabletheDirectoryBrowsingfeatureviaServerManagerandIISManager;next,customizetheappearanceusingheaderandfooterHTMLsnippets;thenconfiguredefaultdocumentstopreventunintendeddirectorylistings;fin

When encountering an IIS500 error, 1. First check whether the Web.config file has syntax errors or configuration conflicts, such as the tag is not closed or repeated configuration; 2. Confirm whether the application pool status and settings are correct, including the running status, .NETCLR version and access permissions; 3. Turn on detailed error information to obtain specific error clues, which can be implemented through IIS manager or web.config configuration; 4. Check for code exceptions and dependency problems, such as database connection failure, DLL missing or unhandled backend exceptions. The above steps help accurately locate and resolve the specific causes of 500 errors.