## Note, this is a fist guide and i know can be enhanced removing hardlink a using variables
First of all install "curl", then create a file under /opt/zenoss/backupmyzenoss.sh like this
#!/bin/sh
#This is a zenoss backup script that after make a backup it will copy
#on a ftp server and remove source file
/opt/zenoss/bin/zenbackup --save-mysql-access
#sleep 900 if needed
tar czf /tmp/lastbackups.tgz /opt/zenoss/backups/
#sleep 900 if needed
curl -v -u user:password -T /tmp/lastbackups.tgz ftp://ipserverftp/
#sleep 900 if needed
#make a cleanup of old backups
rm -rf /tmp/lastbackups.tgz
rm -rf /opt/zenoss/backups/*.tgz
then modify crontab
[zenoss@zenoss ~]$ crontab -l
0 0 1 * * /opt/zenoss/backupmyzenoss.sh >> /dev/null