Recommendations for /etc/rc.d/rc.nodeinfo

Hi,  I was wondering if anyone had recommendations for the best setup of
some of probably the most common services/apps used on openssi.  i.e.
sendmail, httpd, bind, radius etc etc in the /etc/rc.d/rc.nodeinfo file?
Note:  These services are served through a CVIP.

i.e. it looks to me that if you setup   " sendmail	all	Y" then
sendmail starts on all nodes of the cluster, whereas if you setup "
sendmail	initnode	Y"  it only starts on the primary node.
What are the benefits of either setup?

For a public facing cluster running web, email, mysql what is the
recommended setup for these applications?

My current setup has:  (But I do not know if these are getting the best
out of a 3 node SSI cluster).
mysql	initnode	Y
apf	all	Y
snortd	all	Y
httpd	all	Y
syslog	all	Y
sendmail	all	Y
spamassassin	all	Y
radiusd	initnode	Y
named	initnode	Y

Also is it safe to edit this file directly or should it be done through
a specific CLI command instead?
cheers.


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