Kurdum csf'yi, şimdi ne yapmalıyım?

[EDIT]
Kurulumda şu şekilde hatalar vermiş:

create symbolic link `/usr/sbin/csf' to `/etc/csf/csf.pl'
create symbolic link `/usr/sbin/lfd' to `/etc/csf/lfd.pl'
`addon_csf.cgi' -> `/usr/local/cpanel/whostmgr/docroot/cgi/.'
cp: cannot create regular file `/usr/local/cpanel/whostmgr/docroot/cgi/.': No such file or directory
chmod: cannot access `/usr/local/cpanel/whostmgr/docroot/cgi/addon_csf.cgi': No such file or directory
Installing fwlogwatch...

mkdir: cannot create directory `/usr/local/cpanel/whostmgr/docroot/cgi/fw': No such file or directory
`fwlogwatch-1.1.tar.gz' -> `/usr/local/cpanel/whostmgr/docroot/cgi/fw/.'
cp: cannot create regular file `/usr/local/cpanel/whostmgr/docroot/cgi/fw/.': No such file or directory
fwlogwatch.sh: line 7: cd: /usr/local/cpanel/whostmgr/docroot/cgi/fw: No such file or directory
flex -B  -t cisco_ios.l > cisco_ios.c
/bin/sh: flex: command not found
make: *** [cisco_ios.c] Error 127
rm cisco_ios.c

Problem olur mu?
[/EDIT]