FirefoxSync

>> Install Dependencies
apt install python-dev git-core python-virtualenv g++ make sqlite3

>> Download and Setup Firefox Syncserver 1.5
cd /opt
git clone https://github.com/mozilla-services/syncserver
cd syncserver
make build
head -c 20 /dev/urandom | sha1sum < Copy this output <

nano syncserver.ini
#########################################################################################
# Change the following
# if your running FFSyncin a LXD Container change this to your Static IP of the container
# Yes you can leave it to listen to all interfaces (the 0.0.0.0) but i dislike that ...
host = 0.0.0.0
# edit this for the public domain / virtual host of nginx. FFSync is the location on my
# Nginx Reverse proxy, you can change it to what you like but keep this location in mind
# we will need it later
public_url = https://domain.com/ffsync/
# This is the server database.
sqluri = sqlite:////opt/syncserver/syncserver.db
# Paste here the result of the "head -c 20 /dev/urandom | sha1sum" Command
secret = <Content<
# Because this runs on HTTP and i was reverse proxy it through HTTPS, i was getting an error
# and locking me out of the server, change this to true to avoid this
force_wsgi_environ = true
# This is not needed NOW, but once your done uncomment this line.
#allow_new_users = false
###########################################################################################

>> Create the service
nano /etc/systemd/system/ffsync.services
###########################################################################################
[Unit]
Description=A gunicorn server running Mozilla's Firefox sync server
After=syslog.target network.target

[Service]
ExecStart=/opt/syncserver/local/bin/gunicorn --paste /opt/syncserver/syncserver.ini --log-file=/var/log/sync.log

[Install]
WantedBy=multi-user.target
###########################################################################################

systemctl daemon-reload
systemctl start ffsync
systemctl status ffsync

>> Configure the reverse proxy
nano /etc/nginx/sites-available/domain.com
###########################################################################################
# i m just adding the location block, if you changed the location to something else in the
# Firefox Syncservice change the location block, also change the proxy_pass parameter.
        location /ffsync/ {

                access_log /var/log/nginx/access.ffsync.domain.com.log;
                error_log /var/log/nginx/error.ffsync.domain.com.log;

                rewrite  ^/ffsync(.+)$ $1 break;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header Host $http_host;
                proxy_pass http://1.0.0.1:5000;
                proxy_redirect off;
        }
###########################################################################################

>> Configure FireFox
about:config > identity.sync.tokenserver.uri = https://domain.com/ffsync/token/1.0/sync/1.5/
Next go to settings, Sync create an account (since your only hosting the server for the data and
not for the authentication, create a firefox account (you will get an email from them)

To see Firefox syncing with your server in the reverse proxy server do this and force Firefox Sync:
tail -f /var/log/nginx/access.ffsync.domain.com.log

Your done, don't forget to uncomment "allow_new_users" and set it to false and restart the
Firefox Syncserver.