The message "hidepid protection disabled" is related to a security feature in the Linux kernel that helps protect sensitive information about processes from being accessed by non-privileged users.

By default, Linux systems implement a feature called "hidepid" to restrict access to process information. This means that regular users can only see information about their own processes, and not those of other users. This helps protect user privacy and security.

If you're seeing the message "hidden protection disabled", it means that this feature has been explicitly disabled on your system. This could potentially expose process information to non-privileged users, which may be a security concern.

Here's what you can do:

1. Re-enable hided Protection:

You can re-enable hided protection by modifying the sysctl settings. Here's how you can do it:

1. Open the sysctl.conf file for editing:

   bash

• sudo nano /etc/sysctl.conf

• Add the following line to the file:

   
• kernel.pid_max = 65536

  This sets the maximum process ID value.

• Save and close the file.

• Apply the changes:

  CSS

4. sudo sysctl -p

2. Check for Security Policies:

Ensure that there are no custom security policies or configurations that explicitly disabling hidepid protection.

3. Verify System Integrity:

Check for any signs of system compromise or unauthorized changes. Run security scans and audits to ensure the system is in a healthy state.

4. Monitor System Logs:

Keep an eye on system logs for any suspicious activities or error messages related to this issue.

5. Consult with System Administrator or Security Expert:

If you're unsure about the implications of hidepid being disabled on your system, or if you're not sure why it was disabled in the first place, consider consulting with a system administrator or a security expert.

Remember, it's crucial to maintain a secure and up-to-date system. Always back up your data and configurations before making significant changes.