Well i am just asking this to clearify some apache stuff
For the domain and subdomains i would do a type A dns entry to my linode ip for this lets say (just example) 69.56.173.160

i want to point
tuxtech.us to /var/www/htdoc
forums.tuxtech.us to /var/www/htdoc/
java.tuxtech.us to /home/ircd/public_html/java
hub.ca.us.tuxtech.us /home/ircd/public_html


same ip as above
gileada.net to /home/gileada/public_html
forums.gileada.net /home/gileada/public_html/forums/
java.gileada.net /home/ircd/public_html/java/
hub.ca.us.gileada.net /home/ircd/public_html/



etc prob 2 more domains but i can use the examples from above.
Thanks

You need to set-up vhosts in the httpd.conf file.

Details can be found in the apache docs or search goggle.

Adam