Shulou(Shulou.com)06/02 Report--

This article will explain in detail what error code means. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Error code means: system error code.

Refers to the phenomenon that software and hardware do not work properly when people use software and hardware.

Because there are many types of errors, in order to distinguish between errors, the system will set the error code.

If there are errors in the operation of the software and hardware, the operator will be judged and identified according to the original settings and displayed by the error code. operators can quickly find the specific reasons for the failure of software and hardware through error code identification.

Error code interpretation of various web pages (400.404.504, etc.)

1. Summary of the meaning of IIS status code

When a user tries to access content on a server running Internet Information Service (IIS) through HTTP or File transfer Protocol (FTP), IIS returns a numeric code indicating the status of the request. The status code is recorded in the IIS log and may also be displayed in a Web browser or FTP client. The status code can indicate whether a specific request was successful or not, and it can also reveal the exact reason why the request failed. ? More information?

2. Location of log files

By default, IIS places its log files in the% WINDIR\ System32\ Logfiles folder. Each WWW site and FTP site has a separate directory under this directory. By default, log files are created in these directories every day and are named with a date (for example, exYYMMDD.log).

3. HTTP  

1xx-Information prompt  

Represents a temporary response. The client should be prepared to receive one or more 1xx responses before receiving a regular response.  

100-go on.  

101-switch protocol.  

2xx-successful  

Indicates that the server successfully accepted the client request.  

200-OK. The client request was successful.  

2018-created.  

202-accepted.  

203-non-authoritative information.  

204-No content.  

205-resets the content.  

206-part of the content.  

3xx-redirect  

The client browser must do more to implement the request. For example, a browser may have to request a different page on the server or repeat the request through a proxy server.  

301-the object has been permanently removed, that is, permanent redirection.  

302-the object has been temporarily moved.  

304-not modified.  

307-temporary redirection.  

4xx-client error  

An error has occurred and there seems to be a problem with the client. For example, the client requests a page that does not exist and the client does not provide valid authentication information. 400-wrong request.  

401-access denied. IIS defines a number of different 401 errors that indicate a more specific cause of the error. These specific error codes are displayed in the browser, but not in the IIS log:  

401.1-login failed.  

401.2-the server configuration caused the login failure.  

401.3-not authorized due to resource restrictions imposed by ACL.  

401.4-filter authorization failed.  

401.5-ISAPI/CGI application authorization failed.

401.7-access denied by the URL authorization policy on the Web server. This error code is specific to IIS6.0.  

Forbidden access: IIS defines many different 403 errors that indicate a more specific cause of the error:  

403.1-Executive access is prohibited.  

403.2-read access is prohibited.  

403.3-write access is prohibited.  

403.4-SSL is required.  

403.5-SSL128 is required.  

The 403.6-IP address is rejected.  

403.7-client certificate is required.  

403.8-site access denied.  

403.9-too many users.  

403.10-invalid configuration.  

403.11-password change.  

403.12-access to the mapping table is denied.  

403.13-the client certificate is revoked.  

403.14-reject directory list.  

403.15-client access permission exceeded.  

403.16-the client certificate is not trusted or invalid.  

403.17-the client certificate has expired or is not yet valid.  

403.18-the requested URL cannot be executed in the current application pool. This error code is specific to IIS6.0.  

403.19-CGI cannot be executed for clients in this application pool. This error code is specific to IIS6.0.  

403.20-Passport login failed. This error code is specific to IIS6.0.  

404-not found.  

404.0-(none)-No files or directories were found.  

404.1-the Web site cannot be accessed on the requested port.  

The 404.2-Web service extension locking policy blocks this request.  

The 404.3-MIME mapping policy blocks this request.  

405-the HTTP predicate used to access this page is not allowed (methods are not allowed).  

406-the client browser does not accept the MIME type of the requested page.  

407-proxy authentication is required.  

412-prerequisites failed.  

413-the request entity is too large.  

414-the request Uri is too long.  

415-unsupported media type.  

416-the requested range cannot be met.  

417-execution failed.  

423-Lock error.  

5xx-Server error  

The server was unable to complete the request because it encountered an error.  

500-Internal server error.  

500.12-the application is busy restarting on the Web server.  

The 500.13-Web server is too busy.  

500.15-No direct request for Global.asa is allowed.  

The 500.16-UNC authorization credentials are incorrect. This error code is specific to IIS6.0.

The 500.18-URL authorization store cannot be opened. This error code is specific to IIS6.0.  

500.100-Internal ASP error.  

501-the header value specifies the unimplemented configuration.  

The 502-Web server received an invalid response when it was used as a gateway or proxy server.  

The 502.1-CGI application timed out.  

An error occurred in the 502.2-CGI application. Application  

503-the service is not available. This error code is specific to IIS6.0.  

504-the gateway timed out.  

The 505-HTTP version is not supported.  

FTP  

1xx-affirmative preliminary reply  

These status codes indicate that an operation has started successfully, but the client wants another reply before continuing with the new command.  

110 restart mark reply.  

The 120 service is ready and will start in nnn minutes.  

125 data connection is open and transfer is starting.  

150 file status is normal, ready to open data connection.  

2xx-affirmatively complete reply  

An operation has been completed successfully. The client can execute the new command.

Command 200 is confirmed.  

202 commands were not executed, there are too many commands on the site.  

211 system status, or system help reply.  

212 directory status.  

213 file status.  

214 help message.  

215NAME system type, where NAME is the official system name listed in the AssignedNumbers document.  

220 the service is ready to execute requests from new users.  

221 the service closes the control connection. If appropriate, please log out.  

225 the data connection is open and there is no transmission in progress.  

226 close the data connection. The requested file operation was successful (for example, transfer or discard files).  

227 enter passive mode (h 2, recital, h3, recital, h4, p5, p1, p2).  

230 users are logged in and continue.  

250 the requested file operation is correct and completed.  

257 "PATHNAME" has been created.  

3xx-affirmative intermediate reply   the command was successful, but the server needs more information from the client to complete the processing of the request.

331 the user name is correct and a password is required.  

332 A login account is required.  

350 the requested file operation is waiting for further information.  

4xx-transient negative completion reply   the command was not successful, but the error is temporary. If the client retries the command, it may execute successfully.

421 service is not available, closing control connection. If the service determines that it must be shut down, this reply will be sent to any command.  

425 unable to open the data connection.  

426Connectionclosedittransferaborted.  

450 the requested file operation was not performed. Files are not available (for example, files are busy)

About what error code means to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.