apxs - APache eXtenSion tool
mod-authn-otp - Apache module for one-time password authentication
apt-get install build-essential apache2 apache2-dev apache2-utils
apt-get autotools-dev automake checkinstall
apt-get unzip zip
apt-get install libssl-dev
./autogen.sh
./configure
make
apxs -i -a mod_authn_otp.la
chown www-data:www-data otp
chown www-data:www-data otp/otp-users.txt
a2enmod authn_otp proxy_http headers
