No valid key-based license found or HTTP Error 403:Forbidden errors for KernelCare and Imunify360

Issue

On a server with Imunify360, KernelCare patches cannot be installed and the KernelCare license cannot be verified due to errors:

# kcarectl --license-info
No valid key-based license found

# kcarectl -u
Downloading updates 
HTTP Error 403: Forbidden: https://patches.kernelcare.com/...

Environment

• Imunify360
• KernelCare
• Any OS
• Any panel

Solution

1. It is necessary to check if there is a separate file on the server, from which KernelCare gets the incorrect server ID. If there is such a file, it should be moved temporarily:

   # cat /etc/sysconfig/kcare/systemid
   server_id=SSABCDEabcde123
   # mv /etc/sysconfig/kcare/systemid /etc/sysconfig/kcare/systemid_bkp

2. It should be checked if the set-patch-type is set correctly:

   # kcarectl --set-patch-type default
   # kcarectl --update

   Note: When the "systemid" file is missing, KernelCare checks if there is a suitable license for Imunify360 available:

   7046 08:15:48 stat("/etc/sysconfig/kcare/systemid", 0x7ffc7dd9fbb0) = -1 ENOENT (No such file or directory) <0.000035>
   7046 08:15:48 stat("/var/imunify360/license.json", {st_mode=S_IFREG|0600, st_size=1675, ...}) = 0 <0.000027>
   7046 08:15:48 open("/var/imunify360/license.json", O_RDONLY) = 4 <0.000028>

   If so, KernelCare works as expected:

   # cat /etc/sysconfig/kcare/systemid
   cat: /etc/sysconfig/kcare/systemid: No such file or directory
   # kcarectl --license-info
   Key-based valid license found

3. If this does not help, please, create the ticket at our helpdesk.

Cause

From a separate file, the kcarectl gets the incorrect server ID, and cannot get updates or license information.

Useful links

• https://docs.kernelcare.com/command-line/