SSH -SFTP fail

hi there, i have setup sftp server , and created a tunnel to point to it.

when trying to SSH to the domain or accessing sftp to the domain it wont work.

i did found , this
https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/use-cases/ssh/ssh-cloudflared-authentication/

which i guess would've work, however a device i am using cannot install cloudflare .

i would like for a web camera to upload to the sftp server .
i have no ways or able to install cloudflare on that camera .

what can i do ?
Cloudflare Docs
End users can connect to an SSH server without the WARP client by authenticating through cloudflared in their native terminal. This method requires having cloudflared installed on both the server machine and on the client machine, as well as an active zone on Cloudflare. The traffic is proxied over this connection, and the user logs in to the se...
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