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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.

Imunify360 now protects against zero-day attacks, powered by the Wallarm machine learning engine
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Imunify360 now protects against zero-day attacks, powered by the Wallarm machine learning engine

Imunify360 now protects against zero-day attacks, powered by the Wallarm machine learning engine
I am pleased to share that Wallarm’s technology now helps defend our Imunify360 customers’ web applications against zero-day attacks. It analyzes huge troves of Web traffic looking for anomalies and detects ongoing zero-day attacks before they even become known to the public. It then automatically creates rules that block those attacks in real-time...
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Igor Seletskiy
No data is sent to Wallarm / Wallarms IP.
Wednesday, 12 July 2017 17:49
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Imunify360’s latest malware scanning engine outperforms other technologies

Imunify360’s latest malware scanning engine outperforms other technologies

Imunify360’s latest malware scanning engine outperforms other technologies
Yesterday, we released the latest version of Imunify360 . In addition to a few important features, such as Plesk support, it now includes new and greatly improved malware scanning engine. Our latest release shows significantly better malware scanning results than most popular free or paid solutions we have seen used in hosting industry. We have tes...
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Recent Comments
Igor Seletskiy
You shouldn't need it any more.
Thursday, 06 July 2017 17:52
Igor Seletskiy
July/August. UI is 99% ready, but the rest of the things need some more work.
Friday, 07 July 2017 13:35
Igor Seletskiy
Thank you.
Friday, 07 July 2017 13:35
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Major vulnerability: The Stack Clash security issue found that affects most Linux kernels
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Major vulnerability: The Stack Clash security issue found that affects most Linux kernels

Major vulnerability: The Stack Clash security issue found that affects most Linux kernels
[Last updated Jun 22, 12:05PM PDT] A new major local privilege escalation vulnerability in the Linux kernel was disclosed yesterday, June 19th, 2017 (CVE-2017-1000364). The vulnerability can be exploited to allows an unprivileged local user to gain root access to the server. The Qualys' security advisory shows practical methods for circumventing an...
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Igor Seletskiy
Yes, we will notify as it hits production. We just pushed CL7/CL6Hybrid patches to test. If anyone can test by running: kcarectl -... Read More
Tuesday, 20 June 2017 21:08
Igor Seletskiy
CentOS5 is EOL and new patches will not be added.
Wednesday, 21 June 2017 12:07
Igor Seletskiy
CL7 / CL6hybrid is out CL6 should be added in 6-8 hours
Wednesday, 21 June 2017 12:08
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Issues caused by the latest KernelCare update and what we will do to ensure it never happens again

Issues caused by the latest KernelCare update and what we will do to ensure it never happens again

Issues caused by the latest KernelCare update and what we will do to ensure it never happens again
UPDATE: Mar 30 - 10am pacific timezone. 24h feed was updated with the same issue due to technician incorrectly removing "at" job. This has been fixed shortly, but some systems have been affected. We want to apologize for the KernelCare incident that affected some of our customers yesterday. Unfortunately, the bug in POSIX ACL patch for CVE-2016-709...
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Igor Seletskiy
Thank you for the suggestion. We will implement such global controls. Right now this can be done using config file & AUTO_UPDATE s... Read More
Thursday, 30 March 2017 11:34
Igor Seletskiy
I want to personally apologize for that. It was suggested during initial half hour by one of our team members, but I chose not to ... Read More
Thursday, 30 March 2017 11:45
Igor Seletskiy
I am finally back in US - and that makes things a little easier from logistics standpoint. To all those who are rightfully pissed... Read More
Saturday, 01 April 2017 03:36
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Issues caused by the latest KernelCare update

We’ve received reports that our latest patchset affected some CentOS/CloudLinux/OpenVZ 6 kernels. We’ve immediately rolled back the patch, have evaluated the issue and identified the cause to prevent issues in the future releases. Please accept our apologies and standby for additional updates on the cause of the issue. Igor Seletskiy
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Just released, pricing announced: Imunify360 security for Linux VPS, dedicated, and shared servers
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Just released, pricing announced: Imunify360 security for Linux VPS, dedicated, and shared servers

Just released, pricing announced: Imunify360 security for Linux VPS, dedicated, and shared servers
“Imunify360”
Imunify360
Imunify360 is now out of beta and you can try the production version for free! Imunify360 starts at $5 per server/mo, and you also get the 20% off discount locked in on your account if you purchase 5 or more licenses by April 30th. We are excited to announce the release of Imunify360 , the all-in-one, automated security product that protects Linux ...
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We need your feedback - LVE Manager Beta 2 Released

We need your feedback - LVE Manager Beta 2 Released

We need your feedback - LVE Manager Beta 2 Released
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Be amongst the first to try our second beta of new admin UI for LVE Manager. The new user interface was released to beta two months ago, and it has been now improved! Our team fixed a number of bugs as well as improved overall performance and responsiveness of the interface. To find more about new LVE Manager watch our CloudLinux Academy webinar ( ...
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CloudLinux OS feature review - out with the old, in with the new

CloudLinux OS feature review - out with the old, in with the new

CloudLinux OS feature review - out with the old, in with the new
Dear CloudLinux OS customers, In this post, I’d like to share with you some of the CloudLinux OS plans and I’ll focus on its PHP/performance features. I’ll dive in for a bit more details on some. 1. alt-php is now HardenedPHP Originally, when we released PHP Alternatives, we just wanted a way for web hosts to provide multiple versions of PHP to the...
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Igor Seletskiy
there are no plans to discontinue PHP Selector for DirectAdmin
Monday, 13 March 2017 18:19
Igor Seletskiy
The question is -- what exactly are you testing? If you are hitting the same site over and over again -- it is not 'first' request... Read More
Monday, 13 March 2017 23:45
Bogdan
The "First Request Accelerator" is a CRIU engine for lsapi, please find install instructions and read more at http://docs.cloudlin... Read More
Wednesday, 15 March 2017 17:41
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New CloudLinux 6 kernel 2.6.32-673.26.1.lve1.4.22.el6 released to production
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New CloudLinux 6 kernel 2.6.32-673.26.1.lve1.4.22.el6 released to production

New CloudLinux 6 kernel 2.6.32-673.26.1.lve1.4.22.el6 released to production
In case you haven't been patched yet with KernelCare, CL6 kernel-2.6.32-673.26.1.lve1.4. 22.el6 has been released to stable Changelog: fix for  CVE-2015-8962 fix for  CVE-2017-6074 To update: $ yum install kernel-2.6.32-673.26.1.lve1.4.22.el6 kmod-lve-1.4-22.el6 $ reboot
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Security warning: major vulnerability found in Linux kernels that affects most kernels
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Security warning: major vulnerability found in Linux kernels that affects most kernels

Security warning: major vulnerability found in Linux kernels that affects most kernels
A new major local privilege escalation vulnerability in the Linux kernel was disclosed today by Andrey Konovalov ( see CVE-2017-6074 ). It is a memory corruption vulnerability where the same memory location is freed by kernel twice. The vulnerability can be exploited to escalate privileges and allows an unprivileged local user to gain root access t...
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Igor Seletskiy
yes, it would be. Yet, linux-distro list where such things are disclosed had been dysfunctional and doesn't accept any new members... Read More
Thursday, 23 February 2017 13:06
Igor Seletskiy
It takes much longer to prepare & test the fix for the full kernel.
Friday, 24 February 2017 13:01
Kateryna Obiidykhata
1. Here you can find the announcement about the vulnerability found - http://seclists.org/oss-sec/2017/q1/471 2. Because you have ... Read More
Friday, 24 February 2017 12:47
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