NoPorts provides secure access to SMB shares from any location
Like most file-sharing protocols, the SMB needs open ports to communicate, specifically port 445, and relies on TCP/IP for transport. This makes SMB a dynamic and flexible protocol with the ability to share over complex networks including the public Internet.
NoPorts bolsters SMB security by closing all listening ports on external interfaces, including port 445, and adds simplicity to an already powerful network protocol.
Learn how NoPorts adds security superpowers to SMB shares below:
SMB File Sharing
SMB File Sharing with
Complicated network configuration: Handling precise network settings, including IP addresses and subnet masks, can be time-consuming and error-prone.
Simplified network configuration: There is no need for static IP addresses or complex network setups.
Firewall restrictions: Firewalls often block SMB traffic, necessitating specific configuration changes or exceptions.
Firewall agnostic: NoPorts does not require firewalls for security, but is still compatible with existing network security systems.
Complex authentication process: Managing people’s credentials and permissions can be cumbersome, especially in large environments.
Streamlined authentication: Cryptographic authentication replaces credential management. No one has access without permission.
Security concerns: SMB shares do not employ encryption by default. Adding encryption may incur additional hardware and software costs.
Bolstered security: SMB shares, coupled with NoPorts, are protected with end-to-end encryption by default.
Is SMB secure?
SMB is used by a large number of organizations, and is generally considered secure—but only when it’s being carefully configured and monitored. Real-time attack tracking[1] shows that SMB continues to be one of the primary attack vectors for intrusion attempts[2], even after the 2014 Sony Pictures attack[3] and the WannaCry ransomware attack[4] of 2017 illustrated the vulnerabilities with SMB.
With NoPorts and SMB, security and simplicity are greatly enhanced with easier authentication setup and end-to-end encryption included by default.
To learn more about strengthening your SMB security, check out our docs site which has set up instructions and in-depth tutorials.
Learn more about SMB File Share and NoPorts
NoPorts, developed by Atsign with our open-source SDK, represents the next generation of Internet technology—focused on simplicity, security, and privacy. For inquiries or feedback, please contact us.
