Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 603)

Importing a root certificate for FTPS
If you specified [ FTPS ] FTP mode when configuring connection settings, the root certificate
used by the FTP server must be imported to the camera.
Only the root certificate with a file name of “ ROOT.CER ,” “ ROOT.CRT ,” or “ ROOT.PEM ”
can be imported to the camera.
Only one root certificate file can be imported to the camera. Insert a card containing the
root certificate file in advance.
The priority card selected for [
Record/play ] or [ Playback ] in [ : Record func+card/
folder sel. ] is used to import a certificate.
It may not be possible to trust servers you try to connect to in FTPS connections with a
self-signed certificate.
1.
Select [ : Network settings].
2.
Select [Connection option settings].
3.
Select [FTP transfer settings].
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