Please note

DEFENDO is distributed by authorized Linogate resellers only. Therefore, please direct your DEFENDO-related questions to your Linogate reseller, since he is the one in charge to supply end users with first level support. You help us a lot to achieve Linogate's main goal: improve DEFENDO day by day!
Direct requests from end users or non-certified resellers will be accepted in case of exceptional problems only. Thank you for your cooperation!

Please have the following information at hand before you get in contact with technical support:

  • Details about your DEFENDO from the administration interface (in particular "DEFENDO info")
  • Detailed problem description
  • Excerpt from the corresponding logfile and/or exact error message
Please fill in the following form to file a problem report with Linogate's technical support: Enduser Support.
Please fill in this support form as complete as possible. You'll make our job easier if you include the error messages that you're getting as well as problem-related logfiles.
*Required information.
How can we get in touch with you?
Device information (see menu "My Account > Contact" in administration interface)
Optional attachments like logfiles (1 MB max. in total)


DEFENDO forces a collection of best-of-breed security modules like firewall, VPN, proxies, virus scanner and anti spam system to interact for one purpose:
To be protected from all online threats and unwanted contents like malicious code, spam and hacker attacks.


Each IT scenario is different. The DEFENDO product family will adapt precisely to your demands.
DEFENDO applies for simple Internet connections of small companies, for headquarters / branch office WANs, as well as for complex multi-tiered firewall systems.

More good reasons

  • No backdoors
  • More than 20 years of Internet security experience
  • Award-winning product
  • Support by our development engineers
  • Reseller loyalty
  • Made in Germany