cPanel System's Kernel info

leonep

• January 17, 2017 02:05

Hello, In security advisor tells me failure to protect against symlink condition Since I have a Centos 6.7 server I would install the patch against symlink with cPanel hardened kernel but in the warning is written that you may experience reboots or even worse system failure ..... I have to be more concerned about the symlink vulnerability or patch? There are steps possible to do before applying the patch to get in security? thank you !

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  cPanelMichael

  • January 18, 2017 17:46

  Hello, Information about the cPanel hardened kernel is available at: How to Harden Your cPanel System's Kernel - cPanel Knowledge Base - cPanel Documentation While those warnings on this document are true, it's generally a straightforward process that doesn't result in any issues on the system. We're happy to help answer any questions you have about the documented installation steps. Thank you.

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  leonep

  • January 19, 2017 06:52

  thanks Michael, i have started this thread after reading it. I want to know if i can get trouble applying this kernel patch and i want to know if there are possible tasks to do before for avoid system failure or reboots like described in documentation ! i want to know system requirements, free memory needed, disk space needed, versions, file to backup,etc etc in other words a checklist ! it is better to open a ticket? thanks

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  cPanelMichael

  • January 24, 2017 14:24

  Hello, No additional steps are required when installing the cPanel hardened kernel, beyond what's documented. Feel free to post the output from the following commands and we can verify if your system supports it:
  uname -a cat /var/cpanel/envtype cat /etc/redhat-release arch
  Thank you.

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  leonep

  • January 26, 2017 06:55

  Thanks for help. This is the output root@host1 [~]# uname -a Linux host1.mediaqualitylab.com 3.10.23-xxxx-std-ipv6-64 #1 SMP Tue Mar 18 14:48:24 CET 2014 x86_64 x86_64 x86_64 GNU/Linux root@host1 [~]# cat /var/cpanel/envtype standardroot@host1 [~]# cat /etc/redhat-release CentOS release 6.8 (Final) root@host1 [~]# arch x86_64 root@host1 [~]#

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  cPanelMichael

  • January 26, 2017 14:50

  Hello, The information provided suggests your system would support the use of the cPanel hardened kernel. Let us know if there's any further questions we can help answer. Thank you.

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