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.

HighCPUusageinIISworkerprocessesistypicallycausedbyinefficientcode,poorconfiguration,orunexpectedtrafficpatterns.Todiagnosetheissue,firstidentifythespecificw3wp.exeprocessusinghighCPUviaTaskManagerorResourceMonitoranddetermineitsassociatedapplication

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

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.

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.

Yes,youcanuseARRwithIISasareverseproxybyfollowingthesesteps:firstinstallARRandURLRewriteviaWebPlatformInstallerormanually;nextenableproxyfunctionalityinIISManagerunderARRsettings;thenconfigurereverseproxyrulestospecifywhichrequeststoforwardtobackends

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.

To solve the IIS application pool authentication account permission problem, first, you need to confirm the identity account used by the application pool. The default is IISAppPool{AppPoolName}, which can be viewed or modified through the IIS manager; secondly, make sure that the account has corresponding permissions to the website physical path (such as D:\MyWebSite). The operation steps are: Right-click the folder → Properties → Security → Edit → Add the corresponding account and set the read, write and other permissions; common errors such as 401.3 is due to lack of read permission, 500.19 may be due to insufficient permissions for web.config file, and failure to upload may be due to lack of write permissions; pay attention to whether the inheritance permissions are effective, the UNC path needs to be configured with a username and password, and it may be necessary to modify it after the username and password.