We have just released SilverSHielD version 126.96.36.199, which comes with a long-awaited and important improvement: the ability to tarpit client IP addresses during the authentication-request phase, and not only during the actual authentication phase.
As many of you know, in fact, the SSH (and therefore the SFTP) protocol requires the client to “requests authentication” first, and only if allowed the client can then perform the actual authentication. This could lead to bots trying to harvest usernames (although it wouldn’t be impossible to harvest their password). This new release totally prevents this kind of behavior.
Warning: if you’re upgrading from a version prior to 188.8.131.52, installing this new version may lead to loss/invalidation of your license. So if you are a licensed customer, please, contact Extenua before applying this update/upgrade. Thank you.
This maintenance update fixes an annoying bug that affected only the 64-bit version of SilverSHielD and prevented the correct traversal of multi-level empty directory structures.
Even though this wasn’t a common issue, some of our customers needed such (empty) structures for unattended file transfer operations performed by clients they have no control on.
Also, the hardware identification algorithm (Hardware-ID) has been slightly modified to better address non-western character sets. So be careful: this update may invalidate your license, please contact Extenua if you’re planning on installing this update. Thank you.
If you have upgraded SilverSHielD from an old version (5.x or earlier) to the latest version you may see a “SQLite3 Error 8″ message when attempting to save the configuration through the management console, or to apply a new license code.
SilverSHielD provides two alternative methods for license activation behind a corporate firewall/proxy, or when the server is totally offline (private LAN with no Internet access).
If the Internet is accessible through a proxy, there is a specific configuration panel in the Management Console, as shown in the image below.