Shulou(Shulou.com)06/03 Report--

When I went to work this morning, I opened the management backend and found that the private network security management backend could not be accessed:

First of all, take a look at the 404 page, Baidu encyclopedia:

The 404 page is the page returned when the client browses the web, the server cannot provide information normally, or the server cannot respond and does not know the reason. It is said that before the third technological revolution, the Internet took the form of a large central database, which was set up in Room 404. At that time, all requests were done manually, and if the file needed by the requestor was not found in the database, or because the requester wrote the wrong file number, the user would get a return message: room 404: file not found. 404 error messages are usually displayed after the target page is changed or removed, or when the client enters a page address error, people are used to using 404 as the error code that the server could not find the file. Of course, the legendary room 404 does not exist. In the 3-digit return code of http request, the beginning of 4 represents the client error and the beginning of 5 represents the server side error.

When you encounter a 404 error page for the first time, the test is still 404 error page on other colleagues' intranet computers. Is the server down? The network speed of the Ping server is also normal, and the test remote login is normal. In the server to take a look at the Web server (IIS), the system service: 5 are running. The operation restarts and cannot be opened after refreshing.

Finally, after restarting the server! Normal page access ~

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