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What is KernelCare and Why Should You Use It?

What is Kernel?

The kernel is the central module of an operating system (OS). It is the part of the operating system that loads first, and it remains in main memory. Because it stays in memory, it is important for the kernel to be as small as possible while still providing all the essential services required by other parts of the operating system and applications.

So, in other words, the kernel is one of the very most important parts of the operating system. It is responsible for memory management, processes, task management, and disk management. More so, it is actually the kernel that connects the system hardware to the application software.

 

What is KernelCare and Why is it Important?

Now that you understand how important the kernel is, a responsible system admin has to always make sure that it stays up-to-date. By installing the latest kernel updates and kernel security patches, you may be able to avoid or minimize potential issues.

Keeping your kernels updated manually can take hours. In addition to server downtime, it can cause stress for system admins and clients alike.

After applying kernel updates and patches, a server has to be rebooted. Such reboots usually have to be done during off-peak hours. This additional stress is never welcome but avoiding server reboots altogether can create a plethora of issues and security concerns.

Sometimes, after a reboot, the server may face issues and not readily come back up. Fixing such issues may take hours. Sometimes a system admin has to roll back the kernel updates they’ve applied in order to get the server online as quickly as possible.

But what can be done to minimize these issues?

This is where KernelCare comes in. KernelCare provides a service that will patch security vulnerabilities inside the running kernel without creating any downtime or service interruptions. With KernelCare installed on your server, security updates are applied automatically every 4 hours on a running server (live server), without downtime. This completely removes the need to reboot the server after making updates.

 

KernelCare Details, Features, & Requirements

Before you can get started with KernelCare, you’ll need to make sure that your current operating system is supported.

Supported Operating Systems Include:

  • CentOS/RHEL 5, 6 and 7

  • Cloud Linux 5 and 6

  • OpenVZ

  • Virtuozzo

  • PCS

  • Debian 6 & 7

  • Ubuntu 14.04.

 

KernelCare’s Top 6 Features

The following list includes 6 of KernelCare’s top features. If you’re wondering if KernelCare is the right choice for you, check out these built-in benefits.

  1. Automated Kernel Patching, Without Reboots

    With KernelCare installed on your server, all kernel security updates are applied automatically as soon as the patch is available. This removes the need for a reboot which actually avoids downtime and keeps your server running with the latest versions of kernels installed. This way, you can be confident knowing that you always have an updated version running on your server.
     

  2. Latest Security & Stability Upgrades 

    KernelCare runs a check for newly available patches every 4 hours. If a new patch is found, it’s downloaded and applied automatically. With KernelCare, there’s no need to check and apply updates manually. This saves you time while KernelCare handles this critical aspect of server administration.
     

  3. Takes Only Minutes to Install 

    Installing KernelCare is easy and doesn’t require you to reboot the server. All it takes is a simple command via the command line.
     

  4. Prompt Patch Roll Outs 

    The KernelCare team is constantly monitoring security mailing lists. Once they notice there is a security vulnerability that affects one of the supported kernels, they prepare a patch for that vulnerability immediately.
     

  5. No Performance Impact

    KernelCare loads patches using a special kernel module. Since patches take only nanoseconds, they have no impact on overall system performance.
     

  6. Ability to Roll Back Changes

    With KernelCare, you can always roll back all applied changes by running a special command.

Now that you’ve seen some of the features and benefits available with KernelCare, I’m sure you understand why having KernelCare installed on your system is always highly recommended.

Thanks for reading, and should you have any questions or concerns, our support staff is always available to you through our phone and live chat system 24/7/365.

 

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Don’t see what you’re looking for? Use the search bar at the top to search our entire Knowledge Base.

 

The Hivelocity Difference

Seeking a better Dedicated Server solution? In the market for Private Cloud or Colocation services? Check out Hivelocity’s extensive list of products for great deals and offers.

With best-in-class customer service, affordable pricing, a wide-range of fully-customizable options, and a network like no other, Hivelocity is the hosting solution you’ve been waiting for.

Unsure which of our services is best for your particular needs? Call or live chat with one of our sales agents today and see the difference Hivelocity can make for you.

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If you are unable to reach your my.hivelocity.net account or if you are on the go, please reach out from your valid my.hivelocity.net account email to us here at: [email protected] We are also available to you through our phone and live chat system 24/7/365.

Rapid Restore

Backup your entire server’s data every night and have access to 5 days of rolling restore points.  Restore your server’s data, OS and configuration any time you need it.

Our Rapid Restore service saves the day during accidental data loss, hardware failures and virus contraction. Simply pick your recovery point and restore the data from that day. 

DDoS Protection

While our competitors may advertise DDoS protection, most often, they are merely implementing easily evaded router rules or simply black-holing targeted servers. They consider this “DDoS protecting their network.” However, neither of these solutions should give comfort to any online business. Should your site be attacked, chances are likely both of these options will end with your server being taken offline. At Hivelocity, we take the responsibility of keeping your servers online very seriously. For this reason, we offer two very serious forms of DDoS protection.

FREE

Every solution we provide includes our Filtering Edge of Network System (FENS). FENS is a series of proprietary systems that proactively monitors and protects the entire Hivelocity Network from most common Denial of Service (DOS) and Distributed Denial of Service (DDoS) attacks.

$15/MONTH PER SERVER

For an extra fee, you can enhance your server’s protection further with the addition of our Server Defense System. Our Server Defense System sits in front of your server, inspecting inbound data and looking for malicious traffic. The moment an attack is detected, it instantly begins scrubbing each data packet. Hivelocity’s Server Defense System delivers business continuity even in the face of massive and complex attacks.

Our Server Defense System is like adding an alarm and armed guard to your business, alerting you to and destroying anything attempting to jump that fence. Our Server Defense System utilizes internally developed proprietary systems in addition to Corero’s Threat Defense Smartwalls for data packet scrubbing. Each of our data centers is a scrubbing center with Corero Smartwalls on-premise, allowing us to provide on-prem zero-lag data scrubbing.

SSL Certificates

The security of your online commerce and protecting your customers’ data is as important to us as it is to you. When your customers see the green bar, they will know their connection to you is protected. We offer single domain, multi-domain, and wild-card certificates.

We offer industry leading 128-bit encryption certificates, allowing you to conduct e-commerce with complete security. Inspire confidence in your customers by displaying any number of seals and indicators certifying that your site is secure.

Load Balancing

Adding this service to two servers with identical content will allow you to distribute your load evenly across your hardware. Don’t lose business because you couldn’t handle the demand. Load balance and handle your biggest resource spikes with ease.

Firewalls

Stop attacks, prevent unauthorized access, and achieve regulatory compliance. Our Juniper hardware firewalls offload the work so your server never has to consume resources protecting itself from malicious traffic. A single firewall can be used to protect multiple servers.

Cloud Storage

Cloud storage offers users redundancy and easy accessibility, ensuring your data remains secure and readily available. Scale to as much as you need for only a 20¢/GB.

Cloud Storage is distributed and replicated across many servers, protecting your data from hardware failure. Highly scalable, it can handle thousands of client connections via TCP/IP. Connect to your virtual drive with SFTP, FTP, and SSHMount and in the future NFS and AFP. Cloud Storage is based on a stackable design which is upgradeable up to 2TB per instance.