Or look in:
Linux distributions receive rapid kernel updates. If an automated patch tool (like yum update or apt-get upgrade ) bumps the Linux kernel version, the existing Deep Security driver may stop functioning because it does not recognize the new kernel interface. Check your current running kernel: uname -r Use code with caution.
Cons (critical)
sudo apt-get install linux-headers-$(uname -r) Restart the agent service: sudo systemctl restart ds_agent Use code with caution. Or look in: Linux distributions receive rapid kernel
Windows Device Install Service is disabled or stopped. Smart App Control on Windows 11 may block the installation of unsigned or non-Microsoft drivers.
Clear the agent's local state and force it to talk to the DSM:
To prevent the anti-malware driver from falling offline in the future, implement these operational guardrails: Clear the agent's local state and force it
A standard uninstall often leaves files behind. For a complete fix: Uninstall Deep Security 12-Sept-2022 —
Linux agents compile or load specific kernel modules ( ds_am ). If the Linux kernel was updated via yum update or apt-get upgrade , the existing Deep Security driver may fail to compile against the new kernel headers. Check your current kernel version: uname -r Use code with caution.
: On Windows, if Microsoft root certificate updates are missing, the OS cannot verify the driver’s digital signature, preventing installation. Or look in: Linux distributions receive rapid kernel
Impact
Avoid keeping legacy agents running on modern operating systems. Align your agent upgrade schedules to deploy stable DSA versions at least once a quarter.