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 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. Summary 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.  

To maintain competitiveness, chip manufacturers have invested in new technologies, including digital supply chains, connected production lines, and predictive analytics. How to efficiently and securely transfer and share the massive digital information generated by these technologies is a real challenge for enterprises. Traditional data transmission tools such as FTP are gradually unable to keep up with this trend, resulting in increased enterprise costs and decreased productivity. As a pioneer in the field of big data transmission synchronization, Raysync has overcome these challenges in a groundbreaking way, achieving secure, reliable, and efficient data migration. Part 1: Industry Needs With the continuous development and growth of global business, chip manufacturers' headquarters often need to regularly collect a large amount of data from production environment clients in various factories for analysis. During the transmission process, there are many transmission problems such as slow transmission, high latency, and packet loss, and it requires the intervention of operation and maintenance personnel in each factory to perform the transmission task, which increases the operation and maintenance time cost of the headquarters to collect data from various factories.  Part 2: The problems faced by the chip industry: ➤ Due to the impact of transmission distance and network conditions, the transmission efficiency of huge data volumes lags behind. ➤ Poor transmission reliability, unable to ensure the accuracy and security of transmitted data. ➤ The existing transmission methods cannot automatically transmit large amounts of data to a specified storage location on a regular basis. ➤ Due to the large number of data files collected by each production plant, the use of TCP protocol file transfer often only utilizes 25%-35% of the storage performance, resulting in a waste of hardware resources. Part 3: Raysync solution Raysync provides transmission solutions between the headquarters of chip manufacturers and their factories, as well as between the centralized storage servers and terminal devices of each factory. Raysync's self-developed transfer protocol helps chip manufacturers to transfer data at high speed between their daily operations and factories around the world.   1. Automation synchronization between headquarters and factories The headquarters machine room deploys the Raysync server system, and each factory deploys the Raysync client to achieve automated high-speed file transfer synchronization between the headquarters and factories. At the same time, the Raysync server is deployed in a clustered manner, and files are synchronized from the centralized storage servers in each factory through multiple concurrent tasks, effectively improving storage performance utilization and avoiding waste of hardware resources. 2. Automation synchronization between factories and terminal devices Each factory deploys a centralized storage server for the Raysync, and a Raysync client for the terminal devices, enabling the automatic collection of data files from various terminal devices in the factory. At the same time, through the Raysync multi-node management function, centralized management by the server is achieved, and the automatic synchronization and uploading of file data from each client are controlled in a unified manner, without the need for manual upload/download by human intervention, without the need to adjust the existing network architecture, and without the need for new network/hardware costs. The Raysync is hundreds of times faster than the original speed Raysync 's UDP optimized transmission technology is an innovative software that eliminates the fundamental shortcomings of traditional file transmission technology based on TCP. It transmits through Raysync's self-developed transfer protocol, which is hundreds of times faster than FTP/HTTP, greatly reducing the time required for user file decompression and significantly improving the efficiency of file upload/download by 75%-85%. At the same time, the headquarters effectively utilizes storage performance through cluster deployment to avoid waste of hardware performance.  Guarantee data integrity Relying on Raysync's transfer mechanisms such as resume from a breakpoint, multiple checks, and automatic error retransmission, it effectively guarantees the reliability of file transfers and ensures the integrity of data across factories. Algorithm encryption secure transfer SSL security features are added to the transmission protocol and data channel, and TLS algorithm encryption is used to achieve AES-256 financial-level encryption strength , protecting the privacy and integrity of data transmission across factories. Reduce human operation, improve efficiency, and reduce personnel costs Raysync has an automatic synchronization function that enables client data from factories around the world to be synchronized with a centralized storage server in real time. The data is then automatically uploaded to the corresponding storage server at headquarters on a regular basis through the centralized storage server, ensuring that headquarters can obtain the latest data in a timely manner. Reducing manual uploads and downloads, operation and maintenance time is greatly reduced, and personnel efficiency is effectively improved. Sammary In general, Raysync Accelerated Transmission technology provides strong support for the development of the chip industry. Through Raysync's efficient and reliable file transmission system, companies in the chip industry can quickly, securely, and efficiently receive, share, and send business data files, meeting the company's requirements for business data file exchange. In the future, with the rapid development of 5G, cloud computing, artificial intelligence and other technologies, the application scenarios of chips will become more and more extensive, and the requirements for transmission speed and capacity will also continue to increase. Raysync will continue to be committed to providing more professional, efficient, and secure file transmission solutions for the chip industry, and to assisting the development of the chip industry.  

In today's digital age, efficient large files transfer is an essential part of organizations and corporate teams. In this article, we will introduce wetransfer business, a professional online big file transfer tool and analyze its advantages, disadvantages, and application scenarios. Part 1. What’s Wetransfer business? Wetransfer business, the paid version of wetransfer, is specifically designed for medium and large enterprises, offering enhanced features and flexibility. It provides the capability to customize the branding appearance, allowing businesses to align the large file transfer tool with their corporate identity. Additionally, wetransfer business offers greater file transfer capacity and extended file retention periods. wetransfer business also provides collaboration and communication tools to facilitate exchange and collaboration among team members. Wetransfer business is the paid version of wetransfer, specifically tailored for medium and large enterprises, offering enhanced features and flexibility. Part 2: Advantages, disadvantages and application scenarios of wetransfer business Advantages: 1. Large file transfers: Compared to the free version of wetransfer, wetransfer business provides greater file transfer capacity, catering to the needs of enterprises requiring the transfer of large files. 2. Extended file retention: wetransfer business allows enterprises to extend the duration for which files are saved, ensuring accessibility within the required timeframe. 3. Security and confidentiality: wetransfer business offers password protection, limiting file access to authorized personnel, thereby enhancing the security and confidentiality of file transfers. 4. Collaboration and communication tools: wetransfer business provides collaboration and communication tools, such as file commenting and collaboration space, allowing team members to communicate and collaborate in real-time, thereby improving efficiency. Application scenarios: 1. Enterprise team collaboration: The collaboration and communication tools of wetransfer business enable team members to provide real-time comments and collaborate while sharing files, facilitating teamwork, and improving work efficiency. 2. Client communication and file sharing: Enterprises can use wetransfer business to send important files, such as reports and presentations, to clients, ensuring file security through password protection and enhancing customer satisfaction. 3. Marketing and branding: By leveraging the branding customization feature, enterprises can incorporate wetransfer business into brand promotion strategies, thereby effectively communicating their corporate image and brand values. Considering the needs and security requirements of enterprises, wetransfer business offers additional functionality and services, enhancing the efficiency and confidentiality of file transfers. However, it may be too complex and costly for individual users and small teams, so an evaluation based on specific needs is recommended before opting for this solution. Part 3: Benefits of WeTransfer Business in Business Collaboration and Communication 1. File commenting and collaboration: WeTransfer Business provides file commenting and collaboration features, allowing team members to provide real-time comments, suggest modifications, or leave feedback on shared files. This collaborative tool facilitates communication and cooperation among team members, enhancing work efficiency. 2. Collaboration workspace: WeTransfer Business offers a collaboration workspace where team members can share files, discuss project progress, and collaborate in real-time. This simplifies file transfer processes, reduces information fragmentation, and ensures consistency among team members. 3. Access control: WeTransfer Business provides more granular access control, allowing restriction of file access to specific individuals or teams. This ensures that files are accessed only within authorized boundaries, enhancing file transfer security. 4. Statistics and Analytics: WeTransfer Business provides statistics and analysis functionalities, allowing tracking of file usage and understanding recipients' feedback on the files. This helps teams to assess the effectiveness of files and make appropriate adjustments and improvements. Through these functionalities, WeTransfer Business provides team members with convenient and efficient collaboration tools, reducing communication costs and improving work efficiency. Whether it is internal team collaboration or communication with clients, WeTransfer Business can help businesses achieve better collaboration and communication experiences. Part 4. Alternative Solution: Raysync Large File Transfer Solution Raysync is a professional large file transfer solution known for its fast, stable and secure features. It supports multiple transfer modes such as point-to-point, multipoint and cluster transfers and provides highly customizable parameter options to meet different needs. Raysync also features file encryption and authorized access to protect the security of important files. Key Features: Lightning-Fast Speeds: A Quantum Leap in Data Transfer ·Raysync doesn't just move fast; it's like a quantum leap in the world of data transfer speed. Picture it as a supercharged engine for your files. Thanks to its high-speed transfer protocol, Raysync turbocharges the movement of your data. It's like giving wings to your files, ensuring that even those hefty ones zoom through the digital highway at speeds you've never seen before. Robust Security Measures: Safeguarding Your Digital Assets · In today's world of online risks, keeping your important data safe is a big deal. That's where Raysync steps in like a digital guardian. It puts a special lock on your data called encryption, making sure it stays private and safe while it travels. Think of it like a secret code only you and Raysync can understand, keeping your files secure and sound. User-Friendly Interface: Navigating Complexity with Simplicity · Even though Raysync is super powerful, it keeps things easy for you. Using it is like a walk in the park because the features are so easy to find and understand. Whether you're a pro or just starting out with fancy data stuff, high-speed file transfer and syncing become a breeze with Raysync. Raysync isn't just a tool; it's a revolution in how we perceive and execute file synchronization. It's a paradigm shift that empowers individuals and organizations alike to break free from the constraints of traditional transfer methods and embrace a future where speed, security, and simplicity coexist harmoniously. As we delve deeper into the functionalities of Raysync, you'll witness firsthand how this high-speed transfer protocol transcends the boundaries of conventional folder sync, setting a new standard for efficiency in the digital age.  Conslusion： Wetransfer business is a professional file transfer tool for small, medium, and large businesses with highly customizable features and collaboration tools. For individual users and small teams, wetransfer business can be too complex and expensive. As an alternative to wetransfer business, Raysync offers a fast, secure, and highly customizable solution for transferring large files. Depending on the needs, users can choose the solution that suits their needs and improves the efficiency and security of file transfer.

In this age of digitalization, video content is trending on every online platform. Whether it is marketing specialists, media production professionals, or content creators, all noticed a prominent surge in video demand this year. However, handling these huge files is not that simple anymore due to the exponential growth in their size. Uploading or sending these files online or other systems has become a challenge for users. If you are tired of waiting for your large video file transmission, you need to stick to this guide as we go over the best way to send large video files. Here, we will discuss the 6 ways to transfer large video files. Let's get started! Part 1: Why Is Video File Transmission Important? We are living in the age of video content hype. There is an increased demand in the film and television industry due to the rapid growth of online streaming platforms and social media videos. Netflix, YouTube, TikTok, and similar others are just examples that are making video content overtake traditional search engines. Interestingly, the video shares on social media score 1200% more than text and image content combined, which speaks about the potential. So, the increased demand for video content is thereby increasing the demand for video production. This means that there is a growing need for video file transmission, as it is essential to ensure collaboration among video producers, editors, and distributors. Part 2. 6 Ways to Transfer Video There are many ways to transfer and send large video files. So, we have compiled 6 popular ways to send big video files, as follows: Way 1: UDP-based File Transfer UDP-based file transfer is one of the fastest ways of sending video files. This solution works with User Datagram Protocol, which is a connectionless file protocol ensuring direct and high-speed file transmission. Organizations prefer UDP-based file transfer to send large files reliably and quickly, especially media files like videos. Aspera, File Catalyst, and Signiant are popular UDP-based file transfer providers. These solutions offer reliable features like pause/resume or auto-retry functionality. However, they are quite expensive. Way 2: FTP servers If you want to try an in-house and old-school file transfer method, you can go for FTP servers. Dating back to 4 decades, an FTP is used for transferring files in organizations. It was particularly designed for transmitting large files online. Using this method, you don't send the files directly to the recipient. Rather, they are sent to a central server, which acts as the storage unit and handles all uploads and downloads. Without any size restrictions on single transfers, you can transfer multiple files simultaneously or schedule future transfers. Some free FTP clients include FileZilla and Xlight. However, FTP servers are not completely secure. Way 3: Cloud Storage Solutions Another best way to send videos is cloud storage solutions. They are great for uploading video files to share or store. Google Drive, Dropbox, and OneDrive are giant cloud service providers that offer click-based interface, free cloud storage, and a seamless way to send large video files. These solutions support most file formats and are easily accessible. Moreover, these tools are cost-effective and don't cost you hefty amounts for extra storage. For instance, Google Drive offers free storage for your first 15 GB of space and is undoubtedly the best way to send video online. Way 4: Shipping Hard Disk or USB Flash Drive If you or your recipient is experiencing limited internet bandwidth, you can ship a hard disk or USB flash drive through a local courier service or international shipping provider like FedEx. Hard disk and USB flash drives are great for transferring media files to your friends or coworkers manually. This helps secure the content from online theft, but it is time-consuming and less efficient than other advanced options. Way 5: Compression and ZIP Another effective method to send large video files is to compress and reduce their size. In this way, the files require less space to be transferred. The best thing is that the ZIP option is available on every computer . You only need to right-click the folder and tap "Compress to ZIP file". Once done, your file is ready to be sent. You can try some free compression tools like WinZip, 7-Zip, and Express Zip. Way 6: Raysync Raysync is the most advanced, robust, and high-speed large file transfer solution method. It offers 100 times faster speed than FTP/HTTP with unlimited transfer volume for any video file size. Its cutting-edge technology enables smooth transfers of bulky files over long distances regardless of network conditions. Some of the key reasons that make Raysync stand apart in the industry are: ●       100 Gbps bandwidth ●       High-speed petabyte-scale large file transfer ●       Flexible and easy to integrate ●       Support data transfer across platforms , devices, networks, and storage ●       AES-256 and TLS encryption for high-end security for safe video file transmission ●       Auto files sync & data backup ●       Intelligent management dashboard In short, Raysync's advanced file transfer capabilities make it best to send long videos through an encrypted and reliable channel. Part 3: Raysync vs. Other Transfer Methods - Advantages and Disadvantages Raysync is an advanced solution for handling large file transfers effectively. Other than being a smooth and seamless way to send large video files, it has an edge over other methods with exceptionally fast speed, a military-grade encrypted framework, and super simple integration. Below are the key advantages and disadvantages of Raysync vs. other transfer methods: Advantages: ·   Super-fast speed ·   Multi-OS support ·   Peer to Peer transfers ·   Unidirectional and bidirectional sync transfers ·   Easy and simple installation ·    Cost-effective solution ·    User-friendly interface ·    Unlimited transfer volume ·    AES-256 and TLS encryption for high-end security ·    Antivirus functionality ·     Responsive technical support team ·    Intelligent management dashboard Disadvantages: ·    Limited language support Part 4: How to use Raysync to transfer large files? Now that we know the capabilities of Raysync in efficient and super-fast large file transfer, let's quickly look at the steps to use Raysync to transfer large files: First step: Server Deployment: First, you need to have a machine that will serve as your server. Download the Raysync Transfer package and unpack and start it on your server. Then, open TCP ports 8090, 9090 and UDP port 32001 on your firewall to ensure smooth data transmission. Second step: Client Deployment: Transfer users can visit the webpage of Raysync client at http://ip:8090, download and install Raysync client on their computers to start high-speed data transfer, which realizes the synchronization of data from different nodes with the server and the high-speed transfer between data nodes. Third step: Activate the license: After the deployment is completed, open your backend management webpage http://ip:9090/admin and log in with the default administrator account password. Request an activation authorization code from Raysync technical support team to make sure you activate the server and take full advantage of Raysync's features and benefits. Forth step: Create Transfer User: After successful activation, you can create your transfer user. Conclusion Video file transmission is a widespread practice today. However, connectivity issues, delivery distance, and transmission speed can drastically delay your video transmission. Therefore, we suggest you opt for efficient ways to send large video files. One best way to transfer large video files is Raysync. It serves as an all-in-one, ultimate software for quick large file transfer in a secure and efficient way. So, if your videos are in gigabytes or terabytes, then opt for Raysync to seamlessly send big video files.

The way businesses conduct operations has changed significantly with digitalization and technological advancements. Remote working, paperless workplaces, and online collaboration have become a new norm. However, all such modernized activities are dependent on one thing, i.e., real-time access to information. This is where file synchronization comes into action. So, let's talk in detail about file synchronization, covering its importance, types, and methods. Part 1. What is File Synchronization? File synchronization is the process of ensuring two or more copies of the same file in multiple locations are up to date. It ensures that the same files present in different devices, locations, and platforms are identical and any changes in the files are updated in real-time. File synchronization is performed through a file sync tool that can detect changes and synchronize files and folders. For instance, you made some changes to a file on your laptop. Now, the file sync app will detect those changes and update the same file on all the other devices/platforms where that file is saved. Part 2. Types of File Synchronization Although the core purpose of file synchronization is to offer users the latest versions of files, it involves different types, as follows: Type 1: Unidirectional File Synchronization Unidirectional or one-way file synchronization involves synchronizing files and folders from one system to another. This type of file synchronization is commonly used to create a backup of files where the main files are kept in the main system while a backup copy is saved in another system. Type 2: Bidirectional File Synchronization Bidirectional or two-way file synchronization involves synchronizing files and folders in multiple systems. So, if any change in the file is made in any system, it is synced across all the other connected devices/locations. This type of file synchronization is used where the same set of information, such as project documents, should be accessed by multiple individuals. Type 3: Cloud-Based File Synchronization Cloud-based file synchronization is to synchronize files between computers using a cloud platform. The cloud platform serves as a central platform to store, access, and share files. Google Drive, OneDrive, and Dropbox are common cloud-based file synchronization examples. Type 4: Server-Based File Synchronization Server-based file synchronization involves keeping the files on a server. So, all files on the server are synced with the connected devices, and changes made are also synced automatically. Basically, it's exactly like cloud-based file synchronization but replaces the cloud with the server. Type 5: Network-Based File Synchronization Network-based file synchronization is a way to sync files between computers through a network. It is used by companies that want to transfer/backup sensitive data. In this type, the latest version of files will be accessible to all computers connected to the network. Type 6: Device-Based File Synchronization Device-based file synchronization uses flash drives, external hard drives, or pen drives to synchronize files between computers. This type of file synchronization requires manual transferring of data across systems, which is time-consuming. However, this approach is used when the organization needs to share sensitive data and avoid security threats. Part 3. Best large file synchronization tool--Raysync If you just Google "file sync tool", you will come up with a never-ending list of tools. So, we have below shortlisted one best tool for file synchronization: Compared to all the file synchronization methods we have discussed so far, Raysync is the most powerful and ideal file synchronization tool for organizations. Raysync is a secure, automatic, and fast file synchronization tool with no size and quantity restrictions. With high-speed transfer protocol and high-speed engine technology, it offers secure and encrypted one-way/two-way data sync across devices and platforms at the scheduled time interval. The key features of Raysync include:  Multiple ways of data sync, i.e., one-to-one, one-to-many, and many-to-many sync 10 Gbps high-speed transfer of hundreds of files Sync files/folders in real-time Intelligent identification and skipping of the same files Schedule-based syncing One-way and two-way syncing Sync files across platforms , storage , devices, and networks. Encrypted syncing of files/folders.    Overall, Raysync is an all-in-one and the most powerful file sync program organizations need to strategically structure their file synchronization needs. Below are the steps to configure and use Raysync for file syncing: First step: Server Deployment: First, you need to have a machine that will serve as your server. Download the Raysync Transfer package and unpack and start it on your server. Then, open TCP ports 8090, 9090 and UDP port 32001 on your firewall to ensure smooth data transmission. Second step: Client Deployment: Transfer users can visit the webpage of Raysync client at http://ip:8090, download and install Raysync client on their computers to start high-speed data transfer, which realizes the synchronization of data from different nodes with the server and the high-speed transfer between data nodes. Third step: Activate the license: After the deployment is completed, open your backend management webpage http://ip:9090/admin and log in with the default administrator account password. Request an activation authorization code from Raysync technical support team to make sure you activate the server and take full advantage of Raysync's features and benefits. Forth step: Create Transfer User: After successful activation, you can create your transfer user. Conclusion File synchronization is essential in today's data-driven business era. Without an effective file sync framework, a business has to deal with delays, errors, and miscommunication. Therefore, the outcome of this guide is to implement file synchronization practices to ensure consistent file organization. You can pick any file sync tool of your choice, but Raysync is one ideal tool to ensure super-fast, secure, and intelligent synchronization of files and folders across multiple devices.  

1. MQTT data encryption transfer algorithm An improved MQTT protocol data transfer encryption algorithm MQTT-EA is proposed. In this algorithm, the IoT device side and the server-side randomly generate their private keys, then notify each other of their private keys and combine them into the final session master key through the algorithm, which is encrypted and decrypted by DES to transmit secure data. The attack on the data transfer process by adversaries A and B is simulated, and it is verified that MQTT-EA is safe under the premise that the session key generation algorithm is not leaked. 2. Summary of key protocols and application scenarios of time-sensitive networks With the development of information technology, there is an increasing demand for scenarios where things and things are the main body of communication, such as factory automation control, automatic driving, etc. The requirements for data transfer delay of this type of communication far exceed the controllable range of traditional Ethernet. , The time-sensitive network came into being. Time-sensitive networks are based on standard Ethernet, providing standardized technologies for deterministic information transfer, minimizing jitter through time-aware scheduling mechanisms, and providing reliable data transfer guarantees for time-sensitive applications. Through the description of relevant international standards for time-sensitive networks, the core features and mechanisms are introduced, and application scenarios such as in-vehicle networks, industrial Internet, avionics networks, and mobile fronthaul networks are analyzed and researched. 3. Design of LoRa's Remote Distributed Agricultural Environment Monitoring System To solve the problems of complex networking of traditional Internet of Things, short transfer distance, and high power consumption, and agricultural environment monitoring system based on LoRa technology is proposed. The system uses the peripheral functions of the STM32 microcontroller to drive the sensors to monitor a variety of environmental data and uses the LoRa wireless communication module to build a data transfer network. The summary node in the data transfer network receives all the data transmitted from the monitoring node, then packs the data and uploads it to the server through the General Packet Radio Service communication network. The upper computer developed by the C language can realize the monitoring data Real-time display and save. After testing, the system can accurately monitor agricultural environmental data in real-time, is stable and reliable, and can meet the needs of agricultural environmental monitoring.

Perfect World is the world's leading cultural and entertainment enterprise. For a long time, the products of Perfect World have spread to more than 100 countries and regions in the world such as the United States, Europe and Asia. Perfect World has branches in Beijing, Hong Kong, Shanghai, Chongqing, Chengdu and Zhuhai, and over 20 overseas branches in the United States, the Netherlands, France, South Korea and Japan. At present, the business scope of Perfect World Holding Group has expanded to many fields such as film and television, games, movies, animation, literature, media, education, etc. Perfect World has produced many excellent animation works for the development of the animation industry in the future. In 2015, Perfect Kunpeng animation technology co., ltd was established. It combines science and technology with humanities closely and is devoted to creating high-quality animation content for Chinese and global users. In Perfect Kunpeng, the animation department needs to work closely with overseas artists and domestic copyright companies in Beijing, so there are many large files and data that need to be transferred every month. - Business challenges Transfer files with overseas artists The file transfer with overseas artists can be time-consuming and troublesome. That will affect the progress of the project. Delivery of finished animation products The finished animation product needs to be sent to the copyright party. Generally, the file size of a 3D animation movie is at least 1TB. With the traditional way, it takes several days, several nights or even more than ten days to transfer the finished product to the destination. The cost of time is so high that it is unacceptable to most people. Security of the files For movies and series that have not yet been shown, the safety requirements are very high. Once leaked, it will lead to a huge impact on the whole project. - The solution First of all, we need to deploy the Raysync server in Perfect Kunpeng animation technology co., ltd. After the deployment is completed, those overseas artists and domestic partners can efficiently transfer 3D animation files and data to the headquarters of the company through the Raysync Client. - Characteristics of the solution Based on the patented transfer technology, Raysync can overcome the instability of the network conditions and ensures the stable and high-efficiency transfer with minimal packet loss rate under the changeable network environment. Make sure the safety of all the data via the AES-256 encryption. Raysync helps to accelerate the transfer speed, simplify the workflow, and comprehensively improve the efficiency of the enterprise. Through link sharing and some other functions such as automatic mail notification, help enterprises improve overall efficiency. The fully functional management system and flexible authority control help the enterprise to monitor and manage the branches or partners that need file interaction, making the overall business logic of the enterprise clearer and simpler, and helping the enterprise to improve the capacity output.

With the development of big data, artificial intelligence and other technologies, the digitization process is accelerating, and huge amounts of big data are surging. In modern enterprises, efficient large file transfer has become an important part of daily work, office documents, emails, pictures, research reports, laws and regulations, all kinds of reports, audio/video information, these unstructured data become the main form of enterprise data. However, many enterprises are facing all the limitations and troubles of traditional file transfer methods, such as slow transfer speed, lack of security, data loss during transmission, traditional file transfer methods are easily affected by data size, transmission distance and network conditions, and difficult to control. To meet the urgent needs of enterprises in large file transfer, we launched RAMSON - an efficient, reliable, convenient, and secure one-stop enterprise large file transfer solution. Part 1: Raysync Overview: Who are we? Raysync - a one-stop large file transfer solution for enterprises. Based on the application of cloud computing, Internet and big data architecture, Raysync's self-developed Raysync ultra-high-speed transfer protocol can easily meet the demand for high-speed transmission of petabyte-level large files and massive small files. As a leading brand of enterprise-level large file transfer, Raysync has provided efficient and secure file distribution, file sharing, data sorting and synchronization, and other file transfer services for 2W+ enterprises in many fields, such as IT and Internet, intelligent manufacturing, biogenetics, film and media, and finance, etc. Raysync is dedicated to meeting the needs of large data transfer within the enterprise or with external partners, providing efficient and controllable large file transfer, ultra-long distance, cross-border network data transfer, secure external file asset sharing, file management and organizational permission management, to meet the needs of data transfer, synchronization, and collaboration in a variety of enterprise application scenarios, and support Custom Branding, to help enterprises to better manage and track files transfer. For governmental enterprises and corporate customers, Raysync will be your first choice for file transmission. Part 2: Five major products of Raysync Large file transfer system It meets the functions of efficient and controllable large file transfer, internal and external network data exchange, organization, and organizational permission management, etc., and realizes 100% efficient operation of enterprise data transfer management. SDK integration solution Seamlessly integrates with major application systems, supporting web applications, browser plug-ins, PC clients, mobile terminals, and data transfer docking between local systems and three-party cloud platforms to meet the needs of various integration scenarios. Proxy acceleration Applicable to the enterprise's own system transmission acceleration, the original application system does not need to carry out secondary development, only through the standard Proxy protocol can be integrated with the high-speed transmission capacity of Raysync Transmission, saving development time and labor costs. File transfer protocol FTP acceleration Customized specifically for the enterprise development of a complete alternative to the existing file transfer protocol FTP efficient transfer software, can be based on the existing structure to achieve high-speed file transfer, file transfer radium speed protocol can be increased by 10-100 times. RaySSH Acceleration RaySSH acceleration tool integrates the function of RaySSH transfer protocol, which is a perfect substitute for openSSH ssh/sshd/scp/rsync tools, and it is a special and efficient transfer tool product for Linux/Unix systems. Part 3: Product Features High performance transmission The Raysync protocol transfer speed 100 times faster than FTP/HTTP, support for enterprise large files, massive small files tens of thousands of concurrent, bandwidth utilization rate of up to 96%, and effectively reduce the impact of network delay, packet loss and other impact. Financial level security Raysync adopts AES-256 bank-standard encryption technology and TLS data transmission encryption in the transmission process, supports the standard of National Cryptography, the breakpoint resume, error retransmission, multiple file verification , also supports encrypted storage for the files stored in the server.  Stable and efficient data Support intelligent breakpoint transmission, error retransmission, timely troubleshooting; at the same time - built-in multiple file verification mechanism to protect the normal operation of the whole process of intelligent, stable, and efficient guarantee. Multi-mode transfer The transfer mode not only supports uploading and downloading of local and server storage, but also supports peer-to-peer transfer, unidirectional and bidirectional sync transmission and other functions; it also allows you to view the exclusive user space and specific rights management. Centrally Control Raysync supports centralized control platform control, providing exclusive user space and specific permission management, which enables real-time monitoring of transmission and traceable transmission logs. Convenient Deployment & Excellent Compatibility Raysync supports mainstream operating systems, 1-minute flexible deployment, installation, and use; cross-platform deployment, while supporting virtual machine deployment/high availability deployment/container deployment. Part 4: Eight application scenarios Raysync large file transfer tool provides autonomous, secure, and private data transfer solutions for multiple industries, strengthens enterprise security system, helps customers build information channels and integrate data resources. Part 5: Our customers' industry distribution Intelligent manufacturing, biogenetics, media and entertainment, multinational enterprises, supercomputing centers, medical, R&D and design, new energy, government agencies, automotive, IT, and Internet.  As a leading brand of enterprise-level large file transfer, Raysync has provided high-performance, secure, and stable data transfer services for 2W+ enterprises in IT, finance, film and television, biogenetics, manufacturing, and many other fields.   Part 6: Product Price Program Final words  The era of big data has come, big data architecture must break through the traditional centralized shackles, towards the distributed, scalable, and diversified development, data interaction speed must become a key part of the industry to seize the first opportunity. With the basic credo of "Efficient data flow creates value for enterprises", Raysync provides one-stop big data file transfer solution to meet the demand of big data industry for efficient and safe data transfer, and the big data transfer engine is bound to improve the efficiency of enterprises in mining the value behind big data.