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Author Topic: CentOS Dedicated Server Kernel Upgrades  (Read 465 times)

Offline vlad.panainte

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CentOS Dedicated Server Kernel Upgrades
« on: January 05, 2018, 11:29:33 AM »
Please review this support email in its entirety as it requires immediate attention from you.
A very serious security issue has been discovered within Intel CPUs. Meltdown CPU Vulnerability CVE-2017-5754 breaks the most fundamental isolation between user applications and the operating system. This attack allows a program to access the memory, and thus also the secrets, of other programs and the operating system. You may read more here: https://www.theguardian.com/technology/2018/jan/04/meltdown-spectre-worst-cpu-bugs-ever-found-affect-computers-intel-processors-security-flaw.
For our Managed Hosting Ultra and Intense customers, we will begin updating the kernel for your server starting today to the newest release. Please note that a kernel upgrade does require a server reboot. You are required to respond to this support email, or call our support center at 877-586-2772 or +1-714-521-8150, option 1 for technical support, then option 2 for dedicated support, and provide us with a specific date and time when you prefer to have your server rebooted. All times must be in Pacific Time please.
For our Managed Hosting Lite customers and those without any Managed Hosting services on their account, you may email us requesting we upgrade your kernel for a flat fee of $25.00. Please provide your control panel username, primary domain name and the last 4 digits of your credit card on file when requesting this feature in your email to dedicated@lunarpages.com
For those who prefer to perform the update themselves, you may do so in root shell with the following command:
First, always keep backups.
Second, note down the Linux kernel version running the following command:
$ uname -r
Type the following yum command:
$ sudo yum update
You must reboot your Linux server using shutdown/reboot command:
$ sudo reboot
This will then boot to the new kernel after the server is back online. You can always run the following command prior to the upgrade and after the upgrade to check that the kernel did update:
$ uname -r
If you have any questions on this, please let us know ASAP by emailing dedicated@lunarpages.com.
Thank you,
Lunarpages Systems Administration Team


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