Given that your key has expired.
$ gpg --list-keys
$ gpg --edit-key KEYID
Use the expire command to set a new expire date:
# goes in /etc/nginx/sites-available & link in ../sites-enabled | |
upstream graphite { | |
server unix:///tmp/uwsgi.sock; | |
} | |
server { | |
listen 9002; | |
server_name localhost; |