xymon won't display cpu, disk, memory and other system parameters

I have setup xymon on my ubuntu EC2 instance,but my web monitor is not showing columns for disk, memory, cpu and other important parameters as shown below except for the main xymon server:

Below is my xymon server hosts.cfg config:

#group Servers
127.0.0.1       xymon-1043-cnnxdv.aylacnnxdv.net        # bbd http://xymon-1043-cnnxdv.aylacnnxdv.net/
172.*.*.11    mysql-general-11011      # CLIENT:client ssh mysql:3306 NOCOLUMNS:ports,files
172.*.*.12    mysql-general-12011      # CLIENT:client ssh mysql:3306 NOCOLUMNS:ports,files
172.*.*.13    mysql-general-11011      # CLIENT:client ssh mysql:3306 NOCOLUMNS:ports,files
172.*.*.14    cass-11022-cnnxdv        # CLIENT:client ssh cassandra:7000 NOCOLUMNS:ports,files
172.*.*.13    cass-12022-cnnxdv        # CLIENT:client ssh cassandra:7000 NOCOLUMNS:ports,files
172.*.*.14    cass-13022-cnnxdv        # CLIENT:client ssh cassandra:7000 NOCOLUMNS:ports,files

How can i get the system specs (cpu, disk, memory etc) showing on the symon node also show on other nodes as well?