[Xymon] Install dnsreg on xymon server

Hello,

We would like to install the dnsreg script on my xymon server, not on client side, should be from server side, somebody can help me?, i have the script and i move to /home/xymon/server/ext, then where i need to fill with this lines?:

[dnsreg] ENVFILE $XYMONHOME/etc/xymonserver.cfg CMD $XYMONCLIENTHOME/ext/dnsreg.sh LOGFILE $XYMONCLIENTLOGS/dnsreg.log INTERVAL 5m

By other side, this lines is correct?

Thank you very much.