Client certificate authentication to remote site

[TAtkins]

Is there any way to make FortiGate use the proxy function to perform client certificate authentication to a site instead of the client on the internal network? Mainly this would come in handy if multiple internal clients need to access the same site, but the remote site client requires cert authentication and I don't want to distribute the same cert+key pair to all machines.

[amenfro]

Glad you got this resolved! but what am I missing your final edit says you had to add all 3 certs but originally you said you had installed all of them, where were they not installed?

[ebilcari]

I don't think it's possible with FortiGate but it can be done using a FortiWeb, you can find more details in this article.