The first step in active and passive modes

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aminaas1575
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Joined: Sun Dec 22, 2024 4:34 am

The first step in active and passive modes

Post by aminaas1575 »

Initial connection: When setting up the FTP server, a default path will be selected for the client as the connection path. It should be noted that there is generally no way to use "./" or "../" on the program side or the client. This method obtains the files or information on the upper level of the folder, so the program terminal only has permissions for the initial connection folder and its subfolders and files. Pay more attention to the settings.



Program details

When writing programs in C#, we often use Path.Combine to combine file paths. However, because our programs generally run on Windows systems, the slashes in the path are usually "\" backslashes, but the general path on ftp is The main ones are "/" forward slashes, so to be safe, it is best to replace all backslashes with forward slashes after the argentina whatsapp phone number combination is completed to ensure that the program can correctly find the target path on ftp.



In addition, as mentioned above, the settings of active and passive modes , codepage , transmission mode , initial connection information , etc. are recommended to be written in configuration files. Because many clients actually do not know much about the ftp of their own environment, so they are written in settings. This makes it easier to adjust and test in a timely manner. It is safer to write the connection path and related settings into a log so that the problem can be easily found when an error occurs.



Summarize

Even people who have many years of experience in writing programs may not have the opportunity to write ftp-related programs. Even if they have the opportunity to do so, program errors may not necessarily occur due to setting problems, but it is precisely because of the chance of encountering them. It is not high, so it is more difficult to find the source of the problem when actually encountering it. If you can only solve the problem from the program side, you can only improve your understanding of the FTP operating mode and principles, and infer the relevant causes when encountering the problem. The accuracy can also be more accurate.
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