Alt: graphical user interface, application, Teams
Title: VPN File Sharing Interface

Discover how to securely allow SMB file sharing connections between local networks using Kaspersky Security Cloud and VPN configurations.

Introduction

In today’s interconnected world, SMB file sharing is a cornerstone for efficient collaboration within and across organizations. However, ensuring the security of these file-sharing operations, especially across different networks, can be challenging. Implementing a VPN for file sharing adds an extra layer of protection but introduces its own set of complexities, particularly when integrating with security solutions like Kaspersky Security Cloud.

Server Message Block (SMB) is a network protocol used for providing shared access to files, printers, and serial ports between nodes on a network. When combined with a Virtual Private Network (VPN), SMB allows secure file sharing across geographically dispersed networks by establishing an encrypted tunnel.

Secure file sharing ensures that sensitive data remains protected from unauthorized access and cyber threats. For businesses dealing with confidential information, implementing robust security measures for SMB file sharing is non-negotiable.

Challenges with Kaspersky Security Cloud Firewall

Users have reported issues where enabling the Kaspersky Security Cloud Firewall disrupts SMB file sharing between networks connected via VPN. Specifically, when Kaspersky’s firewall is active on either computer within the LANs, file sharing becomes non-functional despite proper configuration of Windows’ built-in firewall.

Common Issues Faced

Firewall Restrictions: Kaspersky’s firewall may block SMB traffic due to its extensive list of monitored applications.
Network Classification: Difficulty in correctly classifying networks as trusted, especially when dealing with multiple LANs connected through a VPN.
Complex Configuration: Navigating through numerous settings to allow specific traffic can be time-consuming and error-prone.

To ensure seamless and secure SMB file sharing across networks while using Kaspersky Security Cloud, follow these best practices:

1. Configure Kaspersky Firewall Rules

Identify SMB Applications: Instead of whitelisting individual Microsoft applications, focus on allowing SMB-related traffic.
Create Custom Rules: Define rules that specifically permit SMB traffic between the designated LAN IP ranges (e.g., 192.168.255.0/26 and 192.168.254.0/26).
Enable Required Ports: Ensure that ports 445 and 139, essential for SMB, are open and allowed through the firewall.

2. Set Network Profiles Appropriately

Define Trusted Networks: In Kaspersky, manually set your VPN-connected LANs as trusted networks.
Avoid Default Settings: Relying on default network classifications can lead to unintended blocking of legitimate SMB traffic.

3. Leverage VPN Configurations

Use Encrypted Tunnels: Ensure that your VPN setup provides robust encryption to protect SMB file sharing from potential eavesdropping.
Optimize VPN Settings: Configure the VPN to prioritize SMB traffic, reducing latency and improving file transfer speeds.

4. Utilize Advanced Features with Peony

Integrating Peony, an AI-powered document management solution, can enhance your file-sharing security and efficiency. Peony offers:

AI-Driven File Organization: Automatically categorize and manage files to streamline access and collaboration.
Secure Data Rooms: Create branded, secure environments for sensitive document sharing.
Real-Time Analytics: Monitor file engagement and access patterns to detect and respond to potential security threats.

If you encounter issues despite following the best practices, consider these troubleshooting steps:

Check Firewall Logs: Review Kaspersky’s firewall logs to identify blocked SMB traffic and adjust rules accordingly.
Verify VPN Stability: Ensure that the VPN connection between LANs is stable and consistently maintains the designated IP ranges.
Update Kaspersky: Keep Kaspersky Security Cloud updated to benefit from the latest security patches and feature enhancements.

Conclusion

Securing SMB file sharing across networks is crucial for maintaining data integrity and confidentiality in today’s hybrid work environments. By effectively configuring Kaspersky Security Cloud Firewall and leveraging the capabilities of VPN file sharing, businesses can achieve a robust and secure file-sharing infrastructure. Additionally, integrating solutions like Peony can further enhance document management and security, ensuring seamless and protected collaboration across all networks.

Ready to elevate your document management and file-sharing security? Discover Peony today!