Stream Control Transmission Protocol SCTP support separates messages and control of the information into separate streams, facilitating a less congested streaming of related content, such as video and voice. The result is lower latency while also enhancing the security of transmitted information.
In addition, SCTP supports the rerouting of streaming content to another network connection if a failed network occurs, without interruption to the application. This feature provides the option to interoperate with Microsoft Active Directory.
Enterprises can now manage Linux environments easily and cost-effectively. Centralized identity management and host-based access control reduces administrative overhead, streamlines provisioning and improves overall security.
As can be seen from the above, to call this latest version of RHEL a minor release does not quite do it justice. There is a lot here.
If you are already a RHEL customer, there really is no reason not to upgrade. If you are considering going Linux, RHEL can deliver the enterprise scalabity and functionality you need. Here are the latest Insider stories. More Insider Sign Out. Sign In Register.
Sign Out Sign In Register. Latest Insider. Fedora is supported by a wide community of developers and users but it is not commercially supported by Red Hat. Red Hat does sponsor the Fedora Project. A new version of Red Hat Enterprise Linux comes out every few years and is supported for up to 10 years.
New Fedora releases are available about every six months and every release gets updates for about 13 months. These are the packages enterprise customers need and are supported by Red Hat. Fedora offers a wide range of software, with many thousands of packages available in the repository. Red Hat Enterprise Linux updates are more conservative and generally focus on security and bug fixes. Users can easily build a script library, share scripts and share repeatable workflows, enabling less experienced administrators to execute complex workflows.
In addition, users can schedule tasks and use new dashboards for enhanced interaction with systems under management. Discovery enhancements in Satellite simplify the process of building systems and allow end users to more efficiently provision systems in secured environments where DHCP and PXE may not be available. This bootstrap script automates the process of registering systems to Satellite, dramatically reducing the number of steps required to get existing systems ready to be managed by Red Hat Satellite.
Red Hat Satellite 6. Product notes, new features, and known bugs for Red Hat Satellite 6. Red Hat Satellite Documentation Team satellite-doc-list redhat. Abstract This document contains product notes, brief descriptions of new features, and known bugs for Red Hat Satellite 6.
Chapter 1. Red Hat Satellite 6 is the evolution of Red Hat's life cycle management platform. It provides the capabilities that administrators have come to expect in a tool focused on managing systems and content for a global enterprise.
Satellite 6 covers the use cases requested by Satellite 5 customers, but also includes functionality that enables larger scale, federation of content, better control of systems during the provisioning process, and a much more simplified approach to life cycle management. Satellite 6 also further evolves the inherent approach to certificate-based entitlements and integrated subscription management.
Satellite 6 is based on years of customer feedback and is an evolution of previous versions. Satellite 6 Component Versions. Red Hat Satellite is a combination of a number of upstream projects. For the full details of the major projects included, and the version of those projects included in each major and minor release of Red Hat Satellite, see Satellite 6 Component Versions.
This section describes the channel and repository settings required to deploy Red Hat Satellite 6. You can install Red Hat Satellite 6. To do so, configure subscription-manager to use the correct channels.
Table 1. It provides new features to improve performance. The new hardware accelerated algorithms are:. This feature provides an interim solution for adding a dynamically reallocatable PCI resource without causing any regressions. Dynamic reallocation is disabled by default. In addition, bridge resources have been updated to provide larger ranges in the PCI assign unassigned call. SMEP provides an enforcement mechanism, allowing the system to set a requirement that is not intended to be executed from user pages while in the supervisor mode.
This requirement is then enforced by the CPU. This feature is able to prevent all attacks, irrespective of the vulnerability in the system code, that are executed from user mode pages while the CPU is in the supervisor mode. The USB 3. The ioatdma driver dma engine driver has been updated to support Intel processors with a dma engine. OBFF provides devices with information on interrupts and memory activity and their potentially reduced power impact, ultimately improving energy efficiency.
Logging of board, system, and BIOS information to dmesg during boot has been added. USB 3. The improvements include:. Refer to BZ for newly supported kernel features provided by the perf utility.
The updated version of the perf utility includes:. This hint enhancement helps the workload of multiple tasks in multiple task groups. By doing this, the error is passed back up the stack, and in some situations applications will get a faster indication that something went wrong. The previous behavior may be obtained by passing the physefi kernel parameter. In CFS, a task group can get more than its share of CPU if there are enough idle CPU cycles available in the system, due to the work conserving nature of the scheduler.
Red Hat Enterprise Linux 6 enabled cgroups out of the box, and libvirt created a cgroup-per-guest model.
On large SMP systems, an increase in the number of cgroups, worsened the performance. After various tests and numerous user reports, it was found that having default 1 is more useful. Consequently, this leads to no service differentiation for applications. For more information on this change, refer to Red Hat Enterprise Linux 6. The following basic features are available: create, display, rename, use, and remove RAID logical volumes.
Automated fault tolerance is not yet available. Red Hat Enterprise Linux can now function as an iSCSI initiator and storage server in production environments that use InfiniBand and where high throughput and low latency are key requirements.
LVM devices can now be activated or deactivated quicker than before. This is relevant to high-density environments that involve a large number of LVM configurations. An example of this is a host that supports hundreds of virtual guests each using one or more logical volumes. The XFS file system is currently supported in Red Hat Enterprise Linux 6 and is well suited for very large files and file systems on a single host. The pNFS architecture eliminates the scalability and performance issues associated with NFS servers in deployment today.
The CIFS client has traditionally only allowed for synchronous writes. This meant that the client process would not yield back control until the writes were successfully completed.
This can lead to degraded performance for large transactions that take long to complete. The CIFS client has been updated to write data in parallel without the need to wait for the sequential writes. The autofs4 module has been updated to kernel version 2. Fixed tracepoints have been added to ext3 and jbd. Support for the -o nobarrier mount option in ext4 , and its utilities: tune2fs , debugfs , libext2fs , has been added.
XPS introduces more efficient transmission of network packets for multiqueue devices by specifically targeting the processor involved in sending the packet. XPS enables the selection of the transmit queue for packet transmission based on configuration.
This is analogous to the receive-side functionality implemented in Red Hat Enterprise Linux 6. Previously, the bridge flooded packets to unregistered groups via all ports. However, this behavior is not desirable in environments where traffic to unregistered groups is always present. To force flooding to any given port, mark that port as a router port. These tracepoints provide a way to analyze the reasons why UDP packets are dropped.
The IPSet feature in the kernel has been added to store multiple IP addresses or port numbers, and match them against a collection via iptables. With a 4 kB setting IW3 , any payload larger than 4 kB would have to be broken into multiple transfers. Communication occurs over virtio-serial links. With this release, identity management has been promoted to fully supported. PIV cards enable confidentiality of data by restricting access to the card holder.
They also ensure data integrity by allowing only the card holder to make modifications. They guarantee the authenticity of the information and prevent non-repudiation of data. The use of PIV cards is mandated by the U.
The new subscription management platform delivers Red Hat subscriptions and software services in a flexible, scalable and secure way. The subscription information includes support levels, expiration dates, Red Hat account numbers, and Red Hat contract numbers. In addition, an X. Users outside of North America should see improved update speeds and availability with the new system. RHN Classic continues to be the default option for computer registration and for receiving updates.
Red Hat customer portal, in conjunction with new functionality available in Red Hat Enterprise Linux 6. Prior to this enhancement, customers with disconnected systems were not able to receive the benefits of subscription information and tracking from the RHN website. For customers with more than 25 disconnected machines, RHN Satellite continues to be the recommended option at additional cost. It is now possible to automatically regenerate new entitlement certificates after the renewal of a subscription.
Prior to this enhancement, customers were required to manually regenerate the certificate in order to continue receiving software updates and other subscription services. Automatically regenerating a certificate minimizes service interruptions. Users are also notified of cases where auto regeneration of certificates was not successful.
As of Red Hat Enterprise Linux 6.
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