In this category, you will find KernelCare related guides, FAQs, setup instructions, and troubleshooting articles written by our Support Engineers. Those will help you to tackle the most frequent problems, answer the most frequent questions, and explain non-trivial setups. Visit our Documentation page for administration guides and manuals where all our features are described in detail: https://docs.kernelcare.com
Articles
- Dirty Frag V2/ Fragnesia vulnerability: Cloudlinux and TuxCare patching status
- Tuxcare self hosted mirror and early beta access to patches
- cannot stat /proc/sys/fs/enforce_symlinksifowner or /proc/sys/fs/symlinkown_gid
- Servers froze after updating tuned-profiles-cloudlinux to version 0.2-9.el8
- Stderr: New kernel detected / There are no updates for this kernel yet.
- kpatch_ctl: page allocation failure: order:6, mode:0x40cc0(GFP_KERNEL|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0
Extended Lifecycle Support
- How to activate CentOS 8 ELS with an activation key?
- How to activate CentOS 6 ELS with an activation key?
- How to activate CentOS 7 ELS with an activation key?
- 401 Authentication error on https://portal.tuxcare.com/api or https://cln.cloudlinux.com/api
- How can I check if CVE is patched on server with TuxCare ELS?
- tzdata and tzdata-java will break tomcat
Linux Support Services
Troubleshooting
- KernelCare error: "Unknown Kernel"
- The `2` patch level is not found for the `extra` patch type.
- KernelCare responses with the "HTTP Error 401: Unauthorized" error during update
- depmod: ERROR: fstatat(4, kcare.ko): No such file or directory
- KernelCare update. Error unpatching [255] ('default', '', '', False)
- The kcarectl --lib-update fails
FAQ
- Do I need to reboot if using KernelCare
- How to submit a Feature Request for TuxCare products?
- kcarectl --doctor does not generate the key
- The status of the KernelCare is inactive (dead)
- KernelCare ePortal takes too much space
- KernelCare+ (plus) and Imunify360