SSL Certificates


If you use the web client it is recommended to use the DESY certificates chain in your browser. You should install the following certificates.

T-TeleSec GlobalRoot Class 2↵
DFN-Verein Global Issuing CA↵
DFN-Verein Certification Authority 2↵

They proof that you are connected to our bastion service. You can simply download these certificates from

Normaly it should be enough to just follow the link, your browser will offer to install the certificates. It might be necessary to download the certifcates and to import them. For further information please ask the UCO