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How to use a single key to register multiple KernelCare servers

June 10, 2019 - TuxCare PR Team

How to use a single key to register multiple KernelCare servers

KernelCare is often deployed on a large number of servers. Adding those servers one by one is a hassle. In that case, KernelCare key can be used to deploy and register multiple servers at once.

Registration is still straightforward:

kcarectl –register [YOUR KEY]

The key can be obtained from CLN.


The same key can be used for all the servers!


Alternatively, you can partition servers in groups (a group per key). Such partitioning is convenient for monitoring – as you can monitor each group separately using Zabbix or Nagios.

It’s important and necessary to update your Linux servers, preferably by enabling automatic software updates. Performing regular software updates to address any vulnerabilities that could arise. Linux users have a tendency to fail to implement patches in a timely manner, which then results in software that is now easily exploited by hackers. These hackers are then privy to your enterprise’s sensitive information. By enabling and having automated updates to your Linux servers, you’re able to alleviate any stresses that come from addressing multiple, required security updates, that can be made available at any time. With automatic updates for your software systems, your security measures will be kept up-to-date, and not require any additional user resources or attention.

Keep Reading: How to Secure Linux by Patching in Real-Time


About KernelCare

KernelCare is a live patching system that patches Linux kernel vulnerabilities automatically, with no reboots. It’s used on over 300,000 servers, and has been used to patch servers running for 6+ years. It works with all major Linux distributions, such as RHEL, CentOS, Amazon Linux, and Ubuntu. It also interoperates with common vulnerability scanners such as Nessus, Tenable, Rapid7, and Qualys. To talk with a consultant about how KernelCare might meet your enterprise’s specific needs, contact us directly at [email protected].

Looking to automate vulnerability patching without kernel reboots, system downtime, or scheduled maintenance windows?

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