How to solve the problem of slow FTP file transfer speed and security within the enterprise

In the age of data, large file transmission within the enterprise is always a necessity. Because of the simplicity, ease of use, and wide support of the FTP protocol, it was commonly used by many enterprises as B2B file transfer in the early days.

With the increase in the number of large file transfers, and the increasing demand for security, FTP has also been exposed to a number of problems. This article will analyze the causes of slow FTP transfer and the common ways for enterprises to solve this problem. 

FTP currently some of the shortcomings and problems

Slow transmission speed: FTP protocol uses the TCP protocol as the transport layer. TCP protocol in order to ensure the reliable transmission of data, the use of three handshakes, sliding window, congestion control, retransmission mechanism and other technologies. Although these techniques can ensure the integrity of the data, it also increases the transmission delay and overhead, reducing the efficiency of transmission. Especially in cross-country, cross-region, high-latency, high packet loss network environments, the transmission speed of the FTP protocol will be significantly reduced, and even transmission failure.

Insufficient security: In the transmission process, FTP protocol data is transmitted in plaintext without any encryption or authentication, which gives hackers or intermediaries an opportunity to attack. They can easily steal, tamper with or delete the transmitted data, causing data leakage or damage.

Complicated management: FTP protocol does not provide convenient file management and transmission monitoring functions, users can not classify, search, synchronize and other operations on the transferred files, nor can they view and analyze the status, progress, logs and other real-time transmission, which brings inconvenience and trouble to users.

Possible reasons for slow FTP file transfer speed and security problems

The root cause of the FTP file transfer speed and security problems is that the FTP protocol is flawed in its design and fails to adapt to the modern network environment and the growth of user needs, thus failing to meet the big file transfer requirements of the big data era. The main problems include:

Server Configuration: FTP server hardware, software, network configuration and other impact on file transfer speed and security, unreasonable or non-optimized configuration will lead to bottlenecks and hidden dangers.

Network bandwidth: There is the use of TCP, and TCP's congestion control mechanism in the high latency, high packet loss network environment leads to a decline in the transmission rate, and can not fully utilize the bandwidth.

Transport Protocol: FTP uses TCP which brings problems including three times handshake, sliding window, congestion control, etc., increasing latency and overhead. At the same time, plaintext transmission is vulnerable to hacker or man-in-the-middle attacks.

Encryption: FTP is not encrypted in transit, risking data leakage or corruption. Even if SSL/TLS encryption technology is used, it increases latency and overhead, and there are security vulnerabilities.

User authentication: FTP user authentication is simple, and it is not possible to realize the access control of different files for different users or user groups, which increases the security risk of data. Even if SSL/TLS is used, it is difficult to realize two-way authentication and there are security vulnerabilities.


Effective Methods to Solve FTP File Transfer Slowdown and Security Problems

Optimize server hardware, software, and network configuration to improve large file transmission efficiency and security. Enhance server resources, update system and service software, and optimize network topology. Enhance network quality and use technologies such as dedicated lines, VPN, and CDN. Select appropriate transmission protocols, such as UDP instead of TCP or HTTP instead of FTP. introduce strong encryption algorithms, such as AES, RSA, SHA, to ensure data security. Implement strict user management with authentication and privilege control to prevent unauthorized access. These measures work together to build an efficient and secure file transfer environment.

Of course, if enterprises need a one-stop solution for large file transfer, they can consider using Raysync. Raysync is an efficient, safe, and convenient file transfer software, which can solve the problem of slow FTP file transfer speed and security issues, with the following advantages:

Fast transfer speed: Raysync uses the self-developed Raysync protocol. It is based on UDP protocol, combined with application layer checksum retransmission mechanism, which can fully utilize the network bandwidth and improve the efficiency of transmission. Moreover, it can automatically adapt to the network conditions, dynamically adjust the transmission rate, avoid network congestion and interference, and improve the stability of transmission. According to the test results, the transmission speed of Raysync is more than 10 times faster than FTP protocol, and it can complete the transmission of large files within seconds.

High security: Raysync uses the international standard AES-256 encryption algorithm to encrypt and decrypt the transmitted data, preventing the data from being stolen or tampered. It uses digital signatures, digital certificates, public key infrastructure and other technologies to authenticate and authorize the transmitted data, preventing the data from being accessed or used by unauthorized users.

Easy to use: It can support a variety of file formats, sizes, types, etc. without any conversion or compression. And it can support functions such as intermittent transfer, incremental synchronization, batch processing, etc. to improve the convenience and flexibility of file transfer.


Slow FTP file transfers and security issues are common challenges faced by many organizations in data exchange and collaboration. In addition to some common ways to solve the problems of FTP transfer, you can also use Raysync, a one-stop file transfer solution, to help enterprises transfer files more efficiently. Of course, Raysync also has an FTP acceleration function, which can help enterprises solve the corresponding transmission problems more comprehensively.


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