CloudLinux - Igor Seletskiy - CloudLinux Blog
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CloudLinux is on a mission to make Linux secure, stable, and profitable, and Igor Seletskiy is at the helm of this undertaking. He is the CEO and founder of the company, and an innovator responsible for the strategic direction of the company and all products within the CloudLinux brand.

Igor is an accomplished technology guru focusing on Linux, kernel development, and the hosting industry. He is a frequent speaker at industry events, and has a successful track record of more than 15 years of delivering innovative products to market.

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Issues caused by CloudLinux OS 7.7 update and what we will do to ensure it never happens again

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We want to apologize for the issues that CloudLinux OS 7.7 updated caused. Earning your trust through providing stability, density, and security to your servers is our highest priority. We regret this issue and would like to say “Sorry” to all our customers who rely on us and have been affected by the CloudLinux OS 7.7 update. Issue inv...
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Recent Comments
LabShop Wrk
Have enabled my servers to update on some weekdays using Cron. Example: Server1 10 22 * * * root /usr/sbin/whmapi1 update_updateco... Read More
Friday, 04 October 2019 11:02
LabShop Wrk
Sorry, 20 22 * * 1 root /usr/sbin/whmapi1 update_updateconf UPDATES=daily RPMUP=daily SARULESUP=daily
Friday, 04 October 2019 11:04
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Make cPanel more cost-effective with Elastic Sites

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cPanel price increases: Now it's even more important to control your license costs. You may have read about cPanel's price increases . It may seem shocking at first glance—some shared hosts will pay 3 to 5 times more per server in license fees. But, in reality, most hosts will see only a $0.20 per account increase in fees per month. While it can ta...
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kernow
Your missing the point Igor, what's morally reprehensible and unethical is the whole idea of charging on a per account basis. Clou... Read More
Thursday, 11 July 2019 13:10
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mds2

MDS: We’re on the case

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You may have heard the news about the latest Intel CPU vulnerability, MDS , or more popularly, Zombieload . We have too, and we're working on releases for CloudLinux OS 6 & 7. We'll release them to Beta today, Stable tomorrow. The vulnerability is similar to Meltdown and Spectre, in that it involves the exploitation of speculative execution fea...
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Recent Comments
Kateryna Obiidykhata
Hello Jonathan, the patches will be delivered as regular kernel update in beta version, today. Regarding the KernelCare patches f... Read More
Wednesday, 15 May 2019 17:39
Eric
Hope this doesn't include another performance hit. At this rate, we'll need supercomputers to keep up with overhead of these patch... Read More
Wednesday, 15 May 2019 19:26
Inessa Atmachian
Hi Eric, We do not have reports about performance hit. Regarding vulnerability estimation, you can check /sys/devices/system/cpu... Read More
Thursday, 16 May 2019 13:28
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Major 9.8 vulnerability affects multiple Linux kernels— CVE-2019-8912 (af_alg_release())

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The KernelCare team are tracking a new vulnerability, CVE-2019-8912 . Our assessment is that the cause is this commit , the introduction of a " sockfs_setattr() "  function. This function neglects to null-out values in a structure, making their values usable after exiting from the function (a so-called ‘use-after-free’ error). Our team have al...
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Recent Comments
Igor Seletskiy
Correct. We initially thought that it was, but after detailed investigation figured out that only kernels 4.9 and higher are affec... Read More
Friday, 22 February 2019 19:06
Igor Seletskiy
CloudLinux 6 / CentOS 6 are not affected. SecurityFocus is wrong. We posted this post partially based on info from securityfocus. ... Read More
Friday, 22 February 2019 22:54
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CVE-2019-8912

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We have started working on patching CVE-2019-8912. We expect to start releasing patches for different kernels on Friday, 22nd February 2019, with all kernels patched up by Sunday.   We will provide more information as it becomes available. https://nvd.nist.gov/vuln/detail/CVE-2019-8912
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KernelCare / KVM crash on EL6

KernelCare / KVM crash on EL6

KernelCare / KVM crash on EL6
The latest KernelCare patchset for EL6 distributions had a bug that triggered crashes KVM hosts in some of the configurations. The patch was rolled back within ~50 minutes, and only a small number of customers were affected. No customers on delayed feeds were affected: http://docs.kernelcare.com/ index.html?delayed_feed.htm   No customers on e...
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5 Bad Reasons to Update Your Linux Kernel

5 Bad Reasons to Update Your Linux Kernel

5 Bad Reasons to Update Your Linux Kernel
A Linux kernel update is not to be taken lightly—change means risk. Whatever reasons you think you might have, there is really only one that matters. I tell you what it is in this blog post .
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CLN Downtime

[Update: Nov 17 8:50pm Pacific Timezone] All services Restored. If you experience any issues - please, contact support at https://cloudlinux.zendesk.com   [Nov 17 11am Pacific Timezone] Due to internal software issue CLN will be down for the next several hours. The issue affected current server registrations and licenses. We are restoring...
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A New Partnership: Committing to Better Security, Together

A New Partnership: Committing to Better Security, Together

A New Partnership: Committing to Better Security, Together
On August 20th, CloudLinux acquired Revisium , a company specializing in automated website malware cleanup. Revisium has 7 years of experience in malware cleanup automation and its products have cleaned hundreds of thousands of websites. CloudLinux is committed to continue growing and promoting the Revisium brand and its products. In the next versi...
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CloudLinux old helpdesk system data leak

Due to the misconfiguration of our old helpdesk system after a server reboot, during the period of August 5th to August 21st, 2018, some attachments from old helpdesk systems were indexed by the Google search engine (according to our server access logs, no other search engine indexed those pages). Less than 250 documents were affected. We have noti...
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