In today's information age, network security has become an issue that cannot be ignored by various enterprises and institutions. In order to protect internal data and systems from attacks and leaks from external networks, some companies and institutions involving sensitive information such as national security, business secrets, personal privacy, etc. usually isolate the internal and external networks, that is, establish an independent internal network and The external network is completely isolated. This practice is called network isolation.
Network isolation can effectively improve the security and stability of internal networks and prevent malicious intrusions and data theft from external networks. However, network isolation also brings some inconveniences and difficulties, especially in file transfer. Since there is no direct connection between the internal and external networks, how to achieve efficient and convenient file transfer while ensuring security has become an urgent problem to be solved.
Several common file transfer methods under network isolation currently on the market include the following:
Removable media copy : Use physical media such as USB flash drives and mobile hard disks to copy files between internal and external networks. This method is the simplest and most intuitive, but also the most unsafe and inefficient. Removable media can easily be lost or stolen, leading to data leakage; removable media can also easily carry viruses or malware, leading to infection of the internal network; the capacity of removable media is limited, making it difficult to transfer large files; the operation of removable media is cumbersome, resulting in low transmission efficiency .
FTP transmission : Use the FTP protocol to establish a file transfer channel between the internal and external networks. Compared with removable media copying, this method has certain security and efficiency improvements. FTP transfer can perform authentication and data protection through password or encryption; FTP transfer can support the transfer of large files and batch files; FTP transfer can be automated through scripts or programs. However, FTP transfer also has some disadvantages and risks. FTP transmission requires opening a port or channel between the internal and external networks, which may be exploited by hackers, causing vulnerabilities in the internal network; FTP transmission requires data conversion or formatting between the internal and external networks, which may result in data damage or loss. ; FTP transmission requires data synchronization or verification between the internal and external networks, which may lead to data redundancy or inconsistency.
Gatekeeper/light gate ferry : that is, using dedicated hardware equipment to establish a one-way or two-way file transfer channel between the internal and external networks. This method is currently a relatively mature and widely used method, with high security and efficiency. The gatekeeper/optical gate ferry can achieve complete isolation between internal and external networks through physical isolation or photoelectric isolation; the gatekeeper/optical gate ferry can achieve strict control of the file transmission process through multiple authentication or auditing methods; the gatekeeper/ Optical gate ferry can optimize file transfer speed through caching or compression. However, the gate/light gate ferry also has some shortcomings and limitations. Gate/light gate ferrying requires the purchase and maintenance of expensive hardware equipment, resulting in higher costs; gate/light gate ferrying requires the configuration and management of complex software systems, making operation difficult; gate/light gate ferrying requires adaptation and Supports multiple file formats and protocols, resulting in poor compatibility.
Enterprise network disk : It uses cloud computing technology to establish a file storage and sharing platform between internal and external networks. This method is currently relatively new and popular, and has strong flexibility and convenience. However, enterprise network disks also have some problems and challenges. Enterprise network disks need to rely on network environments such as the Internet or dedicated lines, which affects transmission stability and speed; enterprise network disks need to comply with relevant laws, regulations and policies, resulting in restrictions on data security and compliance; enterprise network disks need to be protected Users' privacy and rights have led to disputes over data ownership and control.
To sum up, the existing methods of file transfer under network isolation have their own advantages and disadvantages, and no method is perfect. Therefore, when choosing an appropriate file transfer method, you need to comprehensively consider various factors, such as security, efficiency, cost, operation, compatibility, etc., based on different scenarios and needs. At the same time, we also need to continue to explore and innovate to find better solutions.
In this regard, Raysync (privatized deployment solution, which can also be connected to the public cloud, and users of enterprises and social organizations can apply for free trials), as a relatively well-known platform in China, is currently the preferred solution for enterprises. Raysync's internal and external network file exchange system supports cross-network file exchange under multiple network isolation architectures, supports secure exchange logic between multiple isolation networks, and supports approval and traceability of original files to solve the problem of inter-network data security under network isolation conditions. An ideal solution for sending and receiving, ferrying and sharing. Raysync has the following features and advantages:
A multi-level security mechanism ensures the security of cross-network data exchange . It has three parts: internal network space, two-way gatekeeper and external network space. Files on both internal and external networks must go through a predetermined security review process before the data can be delivered to the other side through the two-way gatekeeper to ensure data security.
An additional approval process is added to ensure that the transmission content is compliant . According to different security requirements, multi-dimensional security protection is implemented for the content and extraction of data packages, and an additional approval process is added to ensure that the transmission content and behavior are safe and compliant.
Provide log auditing, visual tracking, log auditing and query . The sender of the data package and relevant administrators can continuously track the location and current status of the package, greatly improving the visibility of the entire data exchange process and improving business operation efficiency.
Based on secure digital packages, it ensures that data cannot be tampered with . It adopts a new digital package data transmission method to ensure the integrity and correctness of a batch of business data and prevent subsequent tampering.
In short, the existing method of file transfer under network isolation is not completely safe, and there is still a lot of room for improvement. As a professional secure cross-network file exchange system , Raysync provides a new choice and possibility for file transfer under network isolation.