I'm not sure about number 3, but I can at least shed some light on 1 and 2:
Red Hat uses a Sys V style init setup. Basically, you have a bunch of scripts in /etc/init.d . Those scripts are symlinked to locations in /etc/rc?.d, where the ? is a number between 1 and 6.
Did you install Sendmail and Samba from the RPM packages? They should have placed those entries in there. If not, I'd study up on using the chkconfig utility-- that is what Red Hat uses to configure the scripts located in /etc/rc?.d directories.
alc6379
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Under Fedora which is similar to redhat use redhat-config-services and set smb and winbind to on then save so they is activated on bootup. Also,I know of lots of monitors and packet spy programs but excel - I dont think so...
jbennet
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