upspin suffix setup
basic setup for servers and clients is described at upspin.io/doc/. to use suffixes (normal and +snapshot), a bit more setup is required on the client side.
to use snapshot functionality, you need to add a configuration for the firstname.lastname@example.org user:
upspin user > /tmp/user # edit /tmp/user, adding +snapshot suffix to name upspin user -put < /tmp/user
normal suffixes to create a suffixed user with a new set of keys, first generate the keypair:
mkdir ~/.email@example.com && upspin keygen ~/.firstname.lastname@example.org
edit the user configuration like for the snapshot user, additionally changing the publickey to the new one:
upspin user > /tmp/user # edit /tmp/user: # - add +suffix to name # - change publickey to contents of ~/.email@example.com/public.upspinkey upspin user -put < /tmp/user
the new suffixed user doesn't have permissions to access the tree of the main user. setting up access is described at upspin.io/doc/access_control.md.