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Tutorial For Working With The FTP Command Line

Updated by John Carl Villanueva on

This tutorial is for those who 1) understand the vulnerabilities of FTP but still want to learn how it's used AND 2) prefer doing things on the FTP command line.

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Topics: Tutorials, FTP, FTP command line, ftp put command

Active vs. Passive FTP Simplified: Understanding FTP Ports

Updated by John Carl Villanueva on

If a client encounters problems when connecting to your FTP server, one of the first things you might want to check is your FTP data transfer mode. Depending on specific network configurations, this mode should be active or passive. In this post, you’ll understand the salient points of active and passive FTP and learn how to avoid associated connectivity issues.

Before discussing which mode is best for what scenario, let’s first cover one crucial topic: the two channels of an FTP session.

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Topics: SFTP, FTP, ftp active mode, ftp active vs passive, ftp passive mode, sftp port, passive ftp

Protecting Your File Transfer Service from Internal Threats

Updated by John Carl Villanueva on

Overview

[Last updated: December 2020] Malicious insiders and careless insiders are increasingly posing serious risks to file transfer systems. If nothing is done to mitigate them, these internal threats can cause data loss or, worse, massive penalty-inducing data breaches. In this post, we take a closer look at internal threats, how they put file transfer systems at risk, and what you can do to mitigate them.

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Topics: JSCAPE MFT, Business Process Automation, Secure File Transfer, FTP

FTP Binary And ASCII Transfer Types And The Case Of Corrupt Files

Updated by John Carl Villanueva on

Overview

Are you receiving corrupt files during FTP transfers? It might simply be due to an incorrect data type setting. In this post, we help you understand the nuances and differences between FTP binary and ASCII data types (transfer modes) so you can avoid these issues.

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Topics: FTP, ASCII, Transfer mode, file transfer, binary mode, binary transfer

Understanding Key Differences Between FTP, FTPS And SFTP

Updated by Van Glass on

Three common protocols still used in file transfer today are FTP, FTPS, and SFTP. While the acronyms for these protocols are similar, there are some key differences among them, in particular, how data is exchanged, the level of security provided, and firewall considerations. Learning these key differences can help you choose a secure file transfer protocol or troubleshoot common connection issues.

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Topics: Managed File Transfer, Secure File Transfer, SFTP, FTPS, FTP

Excluding Passive IP for Internal FTP/S Connections To Your Reverse Proxy

Updated by John Carl Villanueva on

Overview

Last time, we tackled the problem system administrators encounter when their passive FTP or FTPS connections have to pass through a NAT firewall or router. A similar problem can happen when you're dealing with the same type of connections and a reverse proxy. It gets even more complicated when you have to deal with both external and internal users. Let me show you how to deal with that.

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Topics: JSCAPE MFT, Tutorials, FTPS, FTP, Reverse Proxy

Setting Up An FTPS Server Behind A Firewall or NAT For PASV Mode Data Transfers

Updated by John Carl Villanueva on

It’s never easy to set up an FTP server the moment firewalls get involved. But it gets even more complicated once you start using the secure version of FTP, known as FTPS. In this post, we’ll talk about the problem you’ll usually encounter when your FTPS server is behind a firewall and your client attempts to perform a file transfer using passive mode or PASV.

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Topics: JSCAPE MFT, Secure File Transfer, FTPS, FTP

What Is The FTP/S EPSV Command and When Do You Use It?

Updated by John Carl Villanueva on

EPSV is a command issued by an FTP/S client to signal the server that it wishes to enter into what is known as Extended Passive Mode. But what is Extended Passive Mode, and when is it appropriate to use EPSV? Let’s find out.

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Topics: JSCAPE MFT, Managed File Transfer, FTPS, FTP, FTP/S

Setting Up A Trading Partner For Automated FTP/S

Updated by John Carl Villanueva on

Overview

As explained in the first section of the article Preparing Trading Partner Servers For SFTP Automation, the process of establishing an automated file transfer can be greatly simplified by employing what is known as a trading partner. In this post, we'll teach you how to set up a trading partner designed for automated FTP/S transmissions. What you'll be able construct by the end of this tutorial can then be used for a variety of automated FTP/S-based transactions.

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Topics: JSCAPE MFT, Managed File Transfer, Business Process Automation, FTP

Choosing Between SSL Implicit, Explicit, and Forced Explicit Modes

Updated by John Carl Villanueva on

Overview

There will be times when you'll want to transfer files over a secure connection. One option is to use FTPS (FTP over SSL) which provides data-in-motion encryption through SSL (Secure Sockets Layer). When you setup an FTPS service in JSCAPE MFT Server, you'll notice that you actually have 3 modes to choose from explicit SSL, forced explicit SSL and implicit SSL.

This post was originally published on May 6, 2012 but was updated and republished on November 4, 2018.

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Topics: JSCAPE MFT, Secure File Transfer, FTPS, FTP

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