"We have received excellent support, the team really knows their way around the interface"
Clement Ngoma, INQ Digital (Ex Skyband), Malawi "DNSBOX is easy to use, and you get real value from the product"
Jim Shreve, Director of Technology, Nome Public Schools, AK, USA "ApplianSys offers a very helpful service. DNSBOX seems to fit the bill regarding functions"
Matthew Parris, GE Appliances, USA "It's simple, stable and easy to manage. We are very satisfied with DNSBOX so far"
Jostein Solvang, Sparebanken Nord-Norge 1, Norway "ApplianSys responded within a day, and we shortly scheduled a meeting to discuss the need further"
Matthew Parris, GE Appliances, USA

Hardened Operating System for Security and Reliability

DNSBOX-hardwareDNSBOX’s security hardened Linux based operating system (OS) is a custom-built appliance ‘distribution’, developed by ApplianSys to maximise security and reliability. The OS has been stripped clean and locked down:

  • Programs, services and files found on a standard Linux distribution that are not required for a DDI appliance are removed. This makes DNSBOX more secure and boot significantly faster than a standard Linux server.
  • The appliance is protected by a fully configurable on-box firewall: ports are only opened in the firewall as needed when services are enabled. All other traffic is dropped.
  • DNSBOX uses a read-only compressed file-system. This is best practice for appliances, being extremely solid and reliable. The fact that core operating system files are maintained read-only adds an extra security layer and avoids accidental damage from user errors.

The OS has a small footprint: once booted, it is retained in RAM, making it very fast.

Next: Hardware >
Because DNSBOX is versatile and scalable, our customers around the world come in all shapes and sizes. ISPs, enterprises, government agencies and even internet registers simplify, control and protect their DDI services with DNSBOX.

How can we make your visit easier?


Give us a few details about your requirement and we'll make your life easier by serving the most relevant information.
I work in a...
I prefer to read...
Start with...
GO