Dear,
i have a debian system with apache when i see that there is a new version of apache i uninstall apache and install apache2 i go to

/etc/apache2/httpd.conf to configure the server like old apache do but i found this file is like this:

# This is here for backwards compatability reasons and to support
# installing 3rd party modules directly via apxs2, rather than
# through the /etc/apache2/mods-{available,enabled} mechanism.
#
#LoadModule mod_placeholder /usr/lib/apache2/modules/mod_placeholder.so

so my Question is where is the config file for apache2 is it use the old one /etc/apache/httpd.conf

and if not why the dir apache doesn't remove when i make uninstall for the old apache.

thank you.

To erase package with configuration file use --purge option to apt-get
# apt-get --purge remove apache

You apahce config file is /etc/apache2 dir only use that one and remove old one with
rm -rf /etc/apache

l