If your company has high SFTP traffic, a single server may not be able to handle it properly, because SFTP protocol is quite CPU intensive. In this case, you need to use an SFTP reverse proxy with multiple SFTP servers. Our Wing Gateway and Wing FTP Server can meet this requirement perfectly. By performing a few steps of configuration on WingFTP's Administration interface, all SFTP connections can be evenly distributed to multiple WingFTP servers through Wing Gateway.
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Most companies transfer files via HTTPS/FTPS/SFTP protocols, these application protocols rely on TCP as their underlying protocol, and TCP works well in most situations because network conditions are typically good. However, when you transfer files with poor network conditions (like transoceanic transfer), the network throughput can be substantially decreased, this is primarily due to TCP's sliding window algorithm which reduces the throughput when network latency increases. To solve the slow speed issue in long-distance file transfer, we introduced a UDP-based protocol "FastUDP" in the new version of WingFTP/Wing Gateway, it uses the advantage of UDP protocol and adds a reliable retransmission policy and has a much better performance than TCP in high latency network.

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Wing FTP Server supports two-factor authentication (based on TOTP protocol) for Web Client. Two-factor authentication will greatly improve the account security, if someone wants to login to Web Client, he needs both password and dynamic TOTP code.

To turn on this function, just enable the option "Web administration -> Domain > Users > Add/Edit a user > General > Enable two-factor authentication (TOTP) for Web Client".
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Most companies run Wing FTP Server on a single server machine, it is enough for low or medium FTP traffic. But if your company has heavy FTP traffic (like hundreds of secure FTP connections), maybe single CPU can't handle it correctly. Then you can try our Wing Gateway for FTP server load balancing, you just need to setup Wing Gateway on one server machine, and setup Wing FTP Server on two or more server machines, with a few minutes of configuration on WingFTP's side, all the incoming connections can be distributed to those FTP servers evenly.

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Wing FTP Server supports LDAP or Active Directory authentication without creating any local users, and it is very convenient. But if your company does not have an LDAP/AD server, then how to handle user authentication without adding a local user? Yes, it is possible if you have an SMTP (email) server enabled in your company, just use your email address and its password for the FTP server login.
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Today, let's talk about how to set up an FTP reverse proxy. First, assume that you have already installed Wing FTP Server and Wing Gateway. If you setup Wing Gateway in the demilitarized zone (DMZ), then there is no need to forward any port in the firewall, just configure something under WingFTP's web admin like the following steps:

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What is an FTP server?

An FTP server is an ordinary computer with FTP server software installed. With the help of FTP server software, the server can provide an FTP service that allows clients to download and upload files from the server.
The physical server can be stored somewhere in your company with a connection to your company's local network that makes employees can share files. You can also connect the FTP server to the internet, so the clients or employees can access the data stored on the server from any location at any time.
The following picture illustrates various FTP Clients (PC and Mobile) connecting to the same FTP Server over the different networks (LAN and Internet).

What can FTP server software do?

In addition to providing basic file transfer service, FTP server software usually also offers the following advantages.

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What is FTP?

The File Transfer Protocol (FTP) is a network protocol used to transfer data from one computer to another through a network (intranet or internet). And FTP is a commonly-used protocol for exchanging files over any TCP/IP based network to manipulate files on another computer on that network.

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