Hi hjnvejlen
Good point. Found on
http://codex.gallery2.org/index.php/Gallery2:MultisiteMultisite is an installation option of G2 to save diskspace and administrative work when installing and upgrading multiple independent G2 installs on the same webserver. Independent means that the multisite G2 installs don't share albums, photos, users, or anything else. They all use their own database and their own storage directory.
It isn't the way to go since I don't want two simular databases to maintain

It could be done by using this script:
<html>
<script>
location = "http://primarydomain.com/gallery2ibayname/main.php";
</script>
</html>
saved as index.html in a empty subdir in the ibay virtualdomain called gallery2ibayname. I would like a more "clean" Apache alias. Something like in the custom template fragment for Apache, I use for my phpBB2 installation, the one Dan Brown pointed out in his howto years ago.
[root@e-smith httpd.conf]# pico 93phpBB -->
doesn't it matter what I name this fragment, as long as it isn't 93phpBB?#-------------------------------------------
# phpBB 2.0.19
#-------------------------------------------
Alias /phpBB2 /opt/phpBB2
#Alias /gallery2ibayname/ /home/e-smith/files/ibays/gallery2ibayname/
<Directory /opt/phpBB2>
#<Directory /home/e-smith/files/ibays/gallery2ibayname>
AddType application/x-httpd-php .php .php3 .phtml
Options Indexes +Includes FollowSymLinks
order deny,allow
deny from all
allow from all
</Directory>
<Files /opt/phpBB2/config.php>
#<Files /home/e-smith/files/ibays/gallery2ibayname/config.php>
order deny,allow
deny from all
</Files>
#------------------------------------------
Then rebuild httpd.conf and restart apache:
[root@e-smith httpd.conf]# /sbin/e-smith/expand-template /etc/httpd/conf/httpd.conf
[root@e-smith httpd.conf]# /etc/rc.d/rc7.d/S85httpd-e-smith restart
No problem testing it out, but I could use a bit of advice if it would be the way to go. I would hate to chrash my new 70 machine, after spending hours converting and testing.