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preslav_ilevski's avatar
preslav_ilevski
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Aug 23, 2017

Auto renewal of device certificate

Hello everyone,   We have a customer who has two f5 machines in HA pair. And for them we have device trust based on default device certificates. After this trust was established we import new cer...
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preslav_ilevski's avatar
preslav_ilevski
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Aug 23, 2017

Hi all,

 

I found the explanation. There's no option to renew device certificate automatically. And one correction - the device certificate is not used to establish trust relationship between HA units. In order to establish secure channel between HA peers we use /config/ssl/ssl.crt/dtdi.crt and /config/ssl/ssl.crt/dtca.crt certificates.

 

Device certificate (System -> Device certificates -> Device certificate) does not affect DSC (HA) synchronization. It does, however, affect DNS synchronization and iQuery communication.

 

More on BIG-IP certificates can be found here: https://support.f5.com/csp/article/K15664

 

Regards,

 

Preslav