CSF Firewall enable/disable the Ptrace block?
CSF CLOUD DISABLE PTRACE
csf CloudLinux Disable ptrace error tips



:
nano /etc/sysctl.conf


:
## CL. Disable ptrace for users
kernel.user_ptrace = 0
kernel.user_ptrace_self = 0
##


:
 $ sysctl -p
:
https://cloudlinux.zendesk.com/hc/en...-Ptrace-block-
https://docs.cloudlinux.com/cloudlin.../#ptrace-block