http://docs.services.mozilla.com/howtos/run-sync.html
yum install python-virtualen\*
# get latest version from:
https://hg.mozilla.org/services/server-full
# centos
http://www.jethrocarr.com/2012/03/04/mozilla-sync-server-rpms/
# fedora
https://wiki.mozilla.org/QA/Sync/Sync_Server_Install_Fedora