Added repo for fc25 from https://zmrepo.zoneminder.com/ and added the exclude=zoneminder* as mentioned, then installed with dnf
  dnf install zoneminder

Set up database stuff (change user/password)
  mysql -uroot -p < /usr/share/zoneminder/db/zm_create.sql
  mysql -uroot -p -e "grant all on zm.* to \
    'zmuser'@localhost identified by 'zmpass';"
  mysqladmin -uroot -p reload
and adjust /etc/zm/zm.conf accordingly

set the timezone in php.ini "Europe/Paris"

installed mod_ssl
  dnf list mod_ssl

enable and start httpd & zoneminder
  systemctl enable httpd
  systemctl start httpd
  systemctl enable zoneminder
  systemctl start zoneminder

go to https://localhost/zm