Shulou(Shulou.com)06/01 Report--

This article will explain in detail what is the method of using PASV in FTP. The content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Nowadays, many people ask FTP how to use PASV, so the editor answers this question, but reminds you that this method can only be used when you can't log in and download. Follow the editor and have a look.

The method to cancel the pasv mode:

The FTP server of many friends does not support PASV mode, so you need to cancel PASV mode when you log in. The cancellation methods of several FTP download tools are announced as follows:

1. The way to turn off the pasv mode of flashget

Click "tools"-> "options"-> "proxy Server"-> "Direct connection"-> Edit-> uncheck the box before "pasv mode" and make sure all the way back.

two。 The way to turn off the pasv mode of Cutftp

Click "File"-> "site Administration"-> in the "site Manager" window-> "New site"-> fill in "Domain name"-> "Edit"-> "General"-> uncheck "use pasv mode".

3. The way to turn off the pasv mode of FlashFXP

Click "site"-> "site Manager"-> site Manager window-> "New site"-> fill in "Domain name"-> "options"-> uncheck "use passive mode"-> "apply".

4. The way to turn off the pasv mode of NetAnts

Click "options"-> "Parameter Settings"-> "Agent"-> "Direct connection"-> Edit-> uncheck the box before "pasv mode" and make sure all the way back.

Everyone is familiar with FTP, but many people don't know what PASV and PORT are, or don't know exactly how to use them.

Here's a look at these two modes:

PORT is actually another name for the Standard pattern, also known as the Active pattern. It means "active mode" in Chinese.

PASV is the abbreviation of Passive. Chinese is "passive mode".

What's the difference between the two:

The difference is that PORT requires the server to send data through its own TCP 20 after being connected to port TCP 21. And a new connection needs to be established to transfer files. The PORT command contains some useless information on the client, so there is the emergence of PASv.

The PASV model certainly has the advantages of the PORT model and removes some of the disadvantages of PORT. The way PASV works is that when the server receives a PASV command, it automatically selects randomly from ports 1024 to 5000, and uses the same port to transmit data without establishing a new connection.

The above is the summary of the editor. I hope it can help you to know more about the relevant knowledge points.

So much for sharing about FTP's method of using PASV. I hope the above content can be helpful to everyone and learn more knowledge. If you think the article is good, you can share it for more people to see.

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