I have fetched fail2ban package with clone git.
Now it needs not much anymore to activate it - but my terminal shows this output after
different attempts - how do I create a service for fail2ban ? - after this then sudo systemctl would work :

linux@home ~ $ cp files/debian-initd /etc/init.d/fail2ban
cp: der Aufruf von stat für 'files/debian-initd' ist nicht möglich: Datei oder Verzeichnis nicht gefunden
linux@home ~ $ cd fail2ban
linux@home /fail2ban $ cp files/debian-initd /etc/init.d/fail2ban
cp: reguläre Datei '/etc/init.d/fail2ban' kann nicht angelegt werden: Keine Berechtigung
linux@home /fail2ban $ sudo cp files/debian-initd /etc/init.d/fail2ban
linux@home /fail2ban $ update-rc.d fail2ban defaults
bash: update-rc.d: Kommando nicht gefunden.
linux@home /fail2ban $ service fail2ban start
bash: service: Kommando nicht gefunden.
linux@home /fail2ban $ systemctl start fail2ban
Failed to start fail2ban.service: Access denied
See system logs and 'systemctl status fail2ban.service' for details.
linux@home /fail2ban $ sudo systemctl start fail2ban
Failed to start fail2ban.service: Unit fail2ban.service not found.
linux@home /fail2ban $ cd
linux@home ~ $ sudo systemctl start fail2ban
Failed to start fail2ban.service: Unit fail2ban.service not found.
linux@home ~ $ sudo service fail2ban start
sudo: service: Befehl nicht gefunden
linux@home ~ $

When this thread is solved - then I sum it up to a tutorial for activating fail2ban.

    cp: der Aufruf von stat für 'files/debian-initd' ist nicht möglich: Datei oder Verzeichnis nicht gefunden

    means : cp: calling stat for 'files/debian-initd' is not possible: file or directory not found

    From where you got the weird idea to copy files that don't exists, especially debian initd ones on a solus system running systemd is a total mystery... Do you at least have any idea of what you're trying to do ?

    There isn't any such thing on the official github page (have you really cloned that repository ?
    https://github.com/fail2ban/fail2ban#configuration

    PS: Perhaps this is a better place for getting help on this ?

    dschinn1001
    You are aware that fail2ban is meant for server use, right ? And that on a non server machine (for example, the one you're running Solus on....) it's best to use a properly configured firewall to achieve the same results, ie blocking unwanted incoming traffick ?

        brent Okay - thank you - I was not aware of suricata ... I have not anything in my head at right place. Linux is complex. Means then this thread is at finish.