Ever since Red Hat Enterprise Linux added KVM Virtualization as a kernel-based hypervisor to run virtual machines (way back in Red Hat Enterprise Linux 5.4), the operating system took on a dual personality.
Red Hat Enterprise Linux became both a Virtualization host for high density virtual data centers / cloud service platforms, and a guest operating system running on third party hypervisors such as VMware vSphere and Microsoft Hyper-V. As the topic is sufficiently broad, I plan to split my discussion of virtualization into two posts.
Today’s post will discuss Red Hat Enterprise Linux 7 beta as a hypervisor using KVM Virtualization technology and it will highlight a few key enhancements that make Red Hat Enterprise Linux the operating system of choice for modern hybrid data centers. While the features that I will review are inherently those that I find to be the most exciting (note: I’m hoping you will find them to be exciting and useful as well), a complete list is available in the Red Hat Enterprise Linux 7 beta release notes.
Continue reading “KVM Virtualization: Refining the Virtual World with Red Hat Enterprise Linux 7 Beta”
It’s difficult to overestimate the importance of networking in today’s business environment. Since networking provides a central means for data exchange and collaboration, it is often a critical factor when it comes to determining an organization’s ultimate potential for success.
At Red Hat, we understand the importance of networking and the role it plays in maintaining business continuity. As such, we made networking one of the primary focus areas of development for Red Hat Enterprise Linux 7. Having incorporated numerous enhancements and performance optimizations into the Red Hat Enterprise Linux 7 beta – I’d like to take this opportunity to talk about “what’s new” with respect to improvements in network management, bandwidth, and security.
Continue reading “Network Management, Bandwidth, and Security”
It seems that the daily news is full of the fallout that results when companies fail to protect online identities. The ability to limit access to sensitive applications and information to the right people with the right credentials is critical to ensuring the overall security of your infrastructure; critical… but not always easy.
Until recently, options for centralized identity management for the Linux environment were limited. There was no turnkey domain controller-like solution for the Linux/UNIX environment. Some Linux shops integrated open source tools like Kerberos and DNS to create centralized Linux-based identity management, but this option could be time-consuming to develop and expensive to maintain. Others integrated Linux clients directly into Microsoft Active Directory, but this option limited their ability to take advantage of some useful native Linux functionality like sudo and automount.
Continue reading “Who Goes There? Identity Management in Red Hat Enterprise Linux 7 Beta”
In an effort to round out my post from this past Tuesday I’d like to share a little additional information on both Network File System (NFS) updates and enhancements to the GFS2 shared disk file system (…all, of course, in the context of the Red Hat Enterprise Linux 7 beta).
Continue reading “NFS & GFS2”
Is there a best anything? Perhaps. I, personally, tend to think that home-made chocolate chip cookies are the best dessert. However, when it comes to file systems… there are no absolutes.
File systems come in all shapes and sizes; and where one may be perfect for a particular application or scenario – it may not be right for other use cases. This is where Red Hat Enterprise Linux 7 beta shines as it brings a variety of substantial enhancements to file systems in the form of scalability improvements, performance enhancements, and file system choices.
Continue reading “Is there a best Linux file system?”