Hello,
1)
modsecparse.pl :
If you wish we will reinstall mod_security module for you.
2)
vzpp timeout :
Yes,
https://213.175.201.228:4643 was not working. I have disabled port redirection from the hardware node and now it is working fine. You should not face the same problem again.
3)
CSF blocking self :
Yeah, this is the only option. You can set CT_LIMIT as per your requirements from csf configuration file (csf.conf). This option specifies number of connection limit for all IPs.
It takes 2 mins for us to remove any ip from csf.deny list so, it is ok with us
4)
cron.php is 'suspicious process' :
I think "cmd : php" option will help you because it specifies exact path of the cron. Please get back to us if it not works.
Appreciate your patience and understanding.