Adding the following line to ~/.ssh/known_hosts is enough to have dput-ng connect via ssh without requiring key confirmation each time.
ssh.upload.debian.org ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA0bFhL96yrZySCTW9KtUvPnZFVzwFKiAz++XYFnzdEu root@usper (Even before adding in this line I could ssh to both ssh.upload.debian.org and usper.debian.org without prompting, so I'm not sure what this is actually adding; perhaps paramiko and openssh disagree which name to check in the case of aliases?) -- Stuart Prescott http://www.nanonanonano.net/ stu...@nanonanonano.net Debian Developer http://www.debian.org/ stu...@debian.org GPG fingerprint 90E2 D2C1 AD14 6A1B 7EBB 891D BBC1 7EBB 1396 F2F7