I've inherited a JSS from someone else and see steps detailed in link below to set up a JSS - GSX connection but in our case we will be renewing it — 1) are those same steps needed for that?
Also 2) can the same GSX certificate once renewed be added to two JSSes?
Thanks for pointing me in the right direction...
(I know I'm responding to an old post, hopefully this will help someone at some point.)
1) Kinda. I generate the CSR manually with (this is a copy of my internal documentation):
openssl genrsa -aes256 -out privatekey.pem 2048
openssl req -new -sha256 -key privatekey.pem -out certreq.csr
After receiving the certs back from Apple, you can then follow the guide you linked, specifically the step "Converting the Apple Certificate (.pem) to .p12 Format."
2) Yes, you can use the same GSX Cert in multiple Jamf Pro instances, HOWEVER, each instance will need its own, unique GSX user account (and Partner API Token).