GnuPG Quickreference
List all known public keys
gpg --list-keys
Sign a key
gpg --sign-key foo@example.com
Upload all public keys (including signatures) to server
gpg --send-key foo@example.com
Upload single public key (including signatures) to server
gpg --send-key foo@example.com
Get a key from server
gpg --search-keys foo@example.com
Update keys and signatures from server
gpg --refresh-keys
~/.gnupg/gpg.conf
default-key me@example.com
encrypt-to me@example.com
keyserver hkp://subkeys.pgp.net
keyserver-options auto-key-retrieve