Friday Apr 29, 2016

FRIDAY SPOTLIGHT: Unbreakable Enterprise Kernel Release 4 Quarterly Update 1 is now available

We are pleased to announce the availability of the Unbreakable Enterprise Kernel Release 4 Quarterly Update 1 (UEKR4U1) for Oracle Linux 6 and Oracle Linux 7. This is the first quarterly update release for UEK Release 4 (Version 4.1.12-37.2.1) and includes driver updates and a consolidation of fixes for bugs and security issues.

Highlights include:

  • LXC has been updated from 1.07 to 1.1.5
  • btrfs-progs has been updated to 4.2.2-3
  • Several DTrace improvements have been included in this release, including multiple probe firings of a Statically Defined Tracing (SDT) probe
  • Xen improvements, including updates to pciback driver
  • Device driver updates from partners, such as:
    • Broadcom
    • Intel®
    • Microsoft
    • PMC-Sierra
    • VMware

For more information about this release, please refer to the release notes

The source code is available on our public git repository

Friday Apr 01, 2016

FRIDAY SPOTLIGHT: Engage in Oracle Linux Community Site

Hi everyone, 

This Friday I wanted to cover one of the interactive sites we have at oracle.com that you can participate. Oracle Linux Community  is part of the OTN communities. It gives you an opportunity to search and ask questions to experts in Oracle products. Here's an FAQ to explain what it is and how you can get engaged. We have many engineers and Oracle Linux enthusiasts monitoring the questions. We also keep our technical documents in this area so please check the documents tab regularly.


What is Oracle Community website? 

Oracle Community is a home for communities across Oracle, with more joining regularly. It is a content-rich, engaging, and interactive platform for sharing information, questions, and comments about Oracle products and related technologies. Every conceivable nuance of using Oracle products and supported standards is covered. 

 Is this the same as the OTN forums?

 What you may know as the OTN forums has now become the OTN Product Communities. These product communities--including Database, Fusion Middleware, Server & Storage Systems, Java, Cloud Computing, and more--now live alongside other communities like Oracle User Group Community and My Oracle Support Community.

 What is the Oracle Technology Network (OTN)?

Oracle Technology Network is the world's largest interactive community of Oracle developers, admins, and architects. In addition to the Product Communities you can find here on the forums, you can learn more about the Oracle Technology Network by reading About Oracle Technology Network (OTN).

Who moderates these forums?

Many OTN Product Community discussions are moderated by product managers, My Oracle Support Community discussions are moderated by technical support engineers and Oracle User Group Community is moderated by the Oracle User Group team. All of these spaces are frequently visited by knowledgeable users from the community

More information about Oracle Communities here 

Engage in Oracle Linux Community . 

Friday Mar 04, 2016

Friday Spotlight: TechCast Interview with Greg Marsden about UEK

In today's Friday blog, we want to spotlight the TechCast video that our OTN community manager, Logan Rosenstein had recorded. In this interview, Greg Marsden, Software Development Senior Director for Oracle Linux Kernel Development, talks about the development of Unbreakable Enterprise Kernel, open source maintainers in Oracle and how kernel engineers work with the community. Don't miss this insightful interview.

Watch now. 

Friday Feb 19, 2016

FRIDAY SPOTLIGHT: CVE-2015-7547 - Ksplice solves glibc flaw with zero-downtime and no disruptions

This week we have seen a new vulnerability making the rounds involving glibc. The issue at hand involves a couple of libraries (libresolv and libnss_dns), which are used commonly with tasks like DNS lookups. Using the function getaddrinfo() could generate a stack buffer overflow with larger replies, which in turn could be used maliciously to trigger an exploit through attacker-controlled domain names, attacker-controlled DNS servers or man-in-the-middle attacks.

The glibc upstream project released a patch for this issue and most distributions (including Oracle Linux) have released updated glibc packages containing this fix.  Since glibc is a core system library that is used by almost every application on a system, updates to the package typically require restarting applications and best practices would suggest a system reboot.  

Oracle Linux customers with premier support have the advantage of our Ksplice services, which makes it possible to install both kernel and user space updates without the need to restart applications or reboot the system.  If you would like more information about Ksplice and Oracle Linux, please visit our website.

Thursday Feb 11, 2016

Training Thursdays: What Linux Sys Admins Need to Know

There are some key skills that you need if you want to be a Linux system administrator. The Oracle Linux System Administration courses teach you these skills. The objectives of these courses are to:

  • Install Oracle Linux
  • Load and configure the Unbreakable Enterprise Kernel
  • Install software packages from Unbreakable Linux Network and other repositories
  • Use Ksplice to update the kernel on a running system
  • Configure system logging
  • Load kernel modules and configure kernel module parameters
  • Perform User and Group administration
  • Create Ext, XFS, and Btrfs file systems
  • Maintain swap space
  • Use Logical Volume Manager (LVM)
  • Configure RAID devices
  • Configure File Sharing services (NFS, FTP, OpenSSH)
  • Perform Security Administration (firewalld, iptables, chroot, TCP wrappers)
  • Prepare Oracle Linux system for Oracle database
  • Troubleshoot problems and perform corrective action

Those interested in Linux 7 should take the Oracle Linux 7: System Administration course. You can take this course as a:

  • Live-Virtual Event: Attend a live event from your own desk, no travel required. Choose from a selection of events on the schedule to suit different time-zones including 14 and 15 February, 7, 14 and 28 March, 4 and 18 April, and 9 May 2016.
  • In-Class Event: Travel to an education center to take this class. Below is a selection of the in-class events on the schedule.

 Location  Date  Delivery Language
Vienna, Austria
15 February 2016 German
Reading, England
7 March 2016 English
Paris, France
6 June 2016 French
Jakarta, Indonesia
25 April 2016 English
Utrecht, Netherlands
9 May 2016 English
Makati City, Philippines
18 April 2016 English
Moscow, Russia
15 February 2016 Russian
Cape town, South Africa
29 February 2016 English
Johannesburg, South Africa
29 February 2016 English
Pretoria, South Africa
11 July 2016 English
Bangkok, Thailand
23 May 2016 English
Dubai, United Arab Emirates
3 April 2016 English
Dallax, TX, United States 25 April 2016 English
Those interested in Linux 5 or 6 should take the Oracle Linux 5 & 6 System Administration course. You can take this course as a:
  • Training-on-Demand: Start training within 24 hours of registering, following lecture delivery at your own pace through streaming video and booking a time that suits you to perform lab exercises.
  • Live-Virtual Event: Attend a live event from your own desk, no travel required. Choose from a selection of events on the schedule to suit different time-zones including 7 March, 4 and 18 April, and 18 May 2016.
  • In-Class Event: Travel to an education center to take this class. Below is a selection of the in-class events on the schedule.

 Location  Date  Delivery Language
Melbourne, Australia
4 April 2016 English
Sydney, Australia
18 April 2016 English
London, England
14 March 2016 English
Hamburg, Germany
11 April 2016 German
Athens, Greece
15 February 2016 Greek
Milan, Italy
12 December 2016 Italian
Rome, Italy
2 May 2016 Italian
Turin, Italy
27 June 2016 Italian
Amman, Jordan
15 May 2016 English
Utrecht, Netherlands  11 April 2016 English
Johannesburg, South Africa
27 June 2016 English
Istanbul, Turkey 9 May 2016 Turkish
Dubai, United Arab Emirates 21 February 2016 English
Atlanta, GA, United States 2 May 2016 English
Reston, VA, United States 15 February 2016 English
The Oracle Linux 5 & 6 System Administration course is one step in your preparation to sit the Oracle Linux 5 & 6 System Administrator Oracle Certified Associate exam.

To register for an event or to learn more about the Oracle Linux curriculum, go to http://oracle.com/education/linux.

Thursday Jan 28, 2016

Training Thursdays: UEK in Oracle Linux Curriculum

Unbreakable Enterprise Kernel (UEK) is heavily tested with Oracle workloads and therefore recommended for Oracle deployments and all other enterprise deployments. Learn about the UEK by following the Oracle Linux System Administration curriculum.

You will learn how UEK brings you scalability improvements and features including:

  • DTrace for Linux
  • File system improvements
  • Improved support for control groups and Linux containers

Those using Oracle Linux 7 should take the Oracle Linux 7: System Administration course. You can take this course as a:

  • Live-Virtual Event: Attend a live event from your own desk, no travel required. Choose from a selection of events already on the schedule to suit different time-zones including 15 February, 6, 14 and 28 March, 4 and 17 April, and 9 May 2016.
  • In-Class Event: Travel to an education center to take this course. In-class events on the schedule include:

 Location  Date  Delivery Language
Vienna, Austria
15 February 2016 German
Reading, England
7 March 2016 English
Paris, France
6 June 2016 French
Hamburg, Germany
1 February 2016 German
Jakarta, Indonesia
25 April 2016 English
Makati City, Philippines
18 April 2016 English
Capetown, South Africa
29 February 2016 English
Johannesburg, South Africa
29 February 2016 English
Pretoria, South Africa
11 July 2016 English
Madrid, Spain
1 February 2016 Spanish
Bangkok, Thailand 22 February 2016 English
Dubai, United Arab Emirates 3 April 2016 English
Atlanta, GA, United States 7 March 2016 English
Dallas, Texas, United States 25 April 2016 English

Those using Oracle Linux 5 or 6 should take the Oracle Linux 5 & 6: System Administration course.

You can take this course in the following formats:

  • Training-on-Demand: Start training within 24 hours of registering, following lectures through streaming video at your own pace and booking time on a lab environment to suit your schedule.
  • Live-Virtual Event: Attend a live-event from your own desk, no travel required. Choose from a selection of events already on the schedule to suit different timezones including 1 February, 6 and 7 March, 3, 17 and 18 April, and 16 May 2016.
  • In-Class Event: Travel to an education center to take this course. In-class events on the schedule include:

 Location  Date  Delivery Language
 Melbourne, Australia
 4 February 2016  English
 Sydney, Australia
 18 April 2016  English
 London, England
 14 March 2016  English
 Causeway Bay, Hong Kong
 1 February 2016  English
 Milan, Italy
 12 December 2016  Italian
 Rome, Italy
 15 February 2016  Italian
 Turin, Italy
 27 June 2016  Italian
 Kuala Lumpur, Malaysia
 7 March 2016  English
 Petaling Jaya, Malaysia
 22 August 2016  English
 Utrecht, Netherlands
 11 April 2016  English
 Riyadh, Saudi Arabia
 21 February 2016  English
 Capetown, South Africa
 29 February 2016  English
 Johannesburg, South Africa
 8 February 2016  English
 Pretoria, South Africa  5 December 2016  English
 Istanbul, Turkey
 9 May 2016  Turkish
 Dubai, United Arab Emirates  21 February 2016  English
 Reston, VA, United States  15 February 2016  English
 Atlanta, GA, United States  2 May 2016  English

Taking the Oracle Linux System Administration course is one step in your preparation to sit the Oracle Linux 5 & 6 System Administrator OCA certificate exam.

For more information about the Oracle Linux curriculum go to http://oracle.com/education/linux.

Friday Jan 15, 2016

FRIDAY SPOTLIGHT: Customers that Benefit from using Oracle Linux

This Friday spotlight is about customers that implemented Oracle Engineered Systems and used Oracle Linux as their operating system. Oracle Linux is used in all x86 based engineered systems that Oracle offers and optimized for the hardware to provide enhanced performance.

Main benefits listed in the case studies were:

  • Increased performance
  • High availability
  • Reduced cost

Here's just a few selection of the latest customers that implemented Oracle Linux with Oracle Engineered systems:

TeknoSA Boosts Competitiveness with Powerful Sales Analytics on Engineered Business Intelligence Platform 

Company:  TeknoSA

TeknoSA launched a decision support platform using Oracle Business Intelligence on Oracle Exadata to empower executives and sales staff with enhanced sales analytics across nearly 300 outlets and its online store.

Company:  Türk Telekom

Türk Telekom deployed Oracle Exalogic Elastic Cloud and Oracle Exadata Database Machine to run Siebel CRM 8.1 with substantially increased availability and performance while reducing total cost of ownership by 68%

Company:  SISPI Sistema Palermo Informatica

SISPI Sistema Palermo Informatica S.p.A. consolidated 12 single-instance Oracle Databases from IBM Blade servers onto Oracle Exadata Database Machine, delivering substantially increased system performance

Company:  National Oilwell Varco

National Oilwell Varco built an enterprise data warehouse using Oracle Exadata Database Machine and Oracle Business Intelligence, Enterprise Edition, expanding insight into financial and operational performance.

QIIB Reduces Application Response Time 10x on Average, Saves US$1.5 Million per Year in Database Licensing Costs

Company:  QIIB
QIIB deployed Oracle Exadata Database Machine X4-2 to improve the bank’s competitiveness by increasing employee and customer satisfaction, enhancing business agility and continuity, and reducing IT costs.

Secure-24 Ensures Rapid Application Deployment and Cuts Deployment Costs by 90% with Private Cloud Appliance

Company:  Secure-24

Secure-24 deployed Oracle’s Private Cloud Appliance to consistently and securely launch enterprise cloud environments while reducing deployment costs by 90% and acquisition costs by 50%.

Read more customer stories about Oracle Linux. 

Friday Jan 08, 2016

Announcing the general availability of Unbreakable Enterprise Kernel Release 4

The Oracle Linux team is pleased to announce the general availability of the Unbreakable Enterprise Kernel (UEK) Release 4 for Oracle Linux 6 and Oracle Linux 7.  This release, based on the 4.1 mainline kernel, delivers many important new features and enhancements engineered for modern cloud infrastructure.  

  • Significant performance improvements through enhancements to features like automatic NUMA balancing and CPU schedulers, and the introduction of new features like zswap, zram, the LZ4 compression algorithm, network batch transmissions and low-latency network polling.
  • More options for boosting the security of systems and the applications they host. UEK Release 4 now includes kernel address space randomization, a new random number system call and updates in key areas like SELinux, nftables, SHA256 and SHA512.
  • Real-time kernel and userspace patching with Ksplice for Oracle Linux to simplify managing cloud infrastructure and improve security.
  • Support for key cloud technologies. Xen host and guest domain feature and performance enhancements, Open vSwitch and VXLAN improvements for networking, cgroups and namespace enhancements for linux containers and Docker.
  • Enhancements to Oracle Linux DTrace for dynamic, real-time system tracing on production systems
  • The production release and support of Ceph Storage for Oracle Linux Release 1.0, based on the upstream Firefly release
  • New real-time kernel features including timerless (tickless) multitasking and the addition of the deadline scheduling class
  • Enhanced infiniband features including improved protocols, drivers and firmware.
  • A number of updates to key areas such as XFS, Btrfs, Ext4, NFS, FUSE and the Overlay file systems.
  • A number of driver updates supporting the latest hardware.

This has been a major engineering effort that can benefit every Oracle Linux customer. For more information on this release, please review the release notes here.

Oracle Linux is available to download from the Oracle Software Delivery Cloud and the Oracle Yum repos.

Friday Dec 18, 2015

FRIDAY SPOTLIGHT: Oracle Linux Newsletter December 2015 Issue Out

The latest issue of the Oracle Linux Newsletter - December 2015 issue is out. It comes with great new videos, demos, whitepapers and partner news. 

Read it today and subscribe to get it sent to your email bi-monthly.


Friday Dec 11, 2015

FRIDAY SPOTLIGHT: Why Oracle Linux for Modern, Cloud-Enabled DataCenter?

Happy Friday everyone!

We have a great video to share with you this week. In this animated video,  learn how Oracle Linux includes the features and tools you need for your modern, cloud-enabled data center. 

While Oracle Linux is open source and includes standard technologies, tools, and features, Oracle extends the release to deliver a complete, integrated, and supported platform for performance-driven production workloads. In addition to the Red Hat Compatible Kernel (RHCK), Oracle supplies the optimized Unbreakable Enterprise Kernel (UEK), which was first developed to support highly scalable Oracle Engineered Systems. Support for Oracle Linux is affordable and the release is free to download and distribute, unlike other commercial Linux distributions. To add even greater value, Oracle bundles additional capabilities—Ksplice for zero-downtime kernel updates, support for Docker, Linux Containers, OpenStack, Oracle Clusterware for High Availability (HA), and more—at no additional charge with an Oracle Linux Premier Support contract. As a result of these additions, companies receive greater value from their Linux support investment, allowing IT organizations to achieve a higher return on investment.

Watch Oracle Linux for the Cloud-Enabled Datacenter.

Wednesday Nov 25, 2015

Announcing the general availability of Oracle Linux 7.2

We're happy to announce the general availability of Oracle Linux 7 Update 2, the second update release for Oracle Linux 7. You can find the individual RPM packages on the Unbreakable Linux Network (ULN) and the Oracle Linux Yum Server and ISO installation images are available for download from the Oracle Software Delivery Cloud.

Oracle Linux 7 Update 2 ships with the following kernel packages:

  • Red Hat Compatible Kernel (kernel-3.10.0-327.el7) for x86-64
  • Unbreakable Enterprise Kernel (UEK) Release 3 (kernel-uek-3.8.13-98.7.1.el7uek) for x86-64 
By default, both the Unbreakable Enterprise Kernel and the Red Hat Compatible Kernel are installed and the system boots the Unbreakable Enterprise Kernel.

Notable features in this release include:

  • The, makedumpfile can now use sadump format for kernel dumps of more than 16 TB of physical memory
  • During non-graphical installations, kdump can now be configured at the time of install
  • MySQL 5.6 Community Edition can now be installed directly with the Anaconda installer or kickstart
  • OpenSCAP has been upgraded to version 1.2.5
  • Administrators may now configure kdump during non-graphical installations

For more details on these and other new features and changes in Oracle Linux 7 Update 2, please consult the release notes in the Oracle Linux Product Documentation Library.

Oracle Linux can be downloaded, used and distributed free of charge and all updates and errata are freely available. For support, you decide which of your systems require a support subscription.  This makes Oracle Linux an ideal choice for your development, testing and production systems.  You decide which support coverage is the best for each of your systems individually, while keeping all of your systems up-to-date and secure.  For customers with Oracle Linux Premier Support, you also receive access to zero-downtime kernel updates using Oracle Ksplice and support for Oracle OpenStack for Oracle Linux.

 For more information about Oracle Linux, please visit www.oracle.com/linux

Friday Nov 20, 2015

FRIDAY SPOTLIGHT: Best Videos about Oracle Linux from OOW15

There's something better about hearing a topic in a video, it is as if you have been transported to that location without interruptions from other elements. You also get to know the presenter at a different level; how he gets excited about his products, his projects or the environment around him. For this reason, we wanted to dedicate this Friday to all the Oracle OpenWorld videos that feature Oracle Linux.  It will give you an amazing insight and transport you to San Francisco, to that moment!

Keynotes: 

First we want to start with Oracle OpenWorld 2015  keynotes that have featured Oracle Linux announcements. We recommend watching Larry Ellison and Intel CEO, Brian Krzanich's keynotes.

theCUBE Videos 

The second video set is Oracle Executives that are featured in SiliconAngle's theCube. Wim Coekaerts, Sr.VP of Linux and Virtualization Engineering, had been very busy during Oracle OpenWorld this year with some great interviews. His videos are always fun to watch and very informative about latest technologies like docker, containers and OpenStack. The second video is from our Chief Architect, Edward Screven. You can hear his views on Open Source in the video below.

Partner Videos from the Showcase 

Our third video set covers some of our great ISV and IHV Partners who have participated in our OracleLinux, Oracle VM and OpenStack Showcase. 

amitego AG - Oracle OpenWorld 2015

Intel - Oracle OpenWorld 2015

QLogic - Oracle OpenWorld 2015

SGI - Oracle OpenWorld 2015

Tech Talk Video

Last, but not least is our Tech Talk video about Node.js and Oracle Linux. In this video, we give you insights on how to use node.js on Oracle Linux from Chris Jones who develops on that platform.

Oracle Linux and Node.js - Tech Talk

Have fun watching these all engaging videos and transporting to Oracle Linux-land!

Friday Nov 13, 2015

Announcing the general availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 7

We are pleased to announce the availability of the Unbreakable Enterprise Kernel Release 3 Quarterly Update 7 (UEKR3U7) for Oracle Linux 6 and Oracle Linux 7. This is the seventh quarterly update release for UEK Release 3 (Version 3.8.13-118) and includes driver updates and a consolidation of fixes for bugs and security issues.

Some notable highlights include:

  • For Oracle Linux 7 installations, support has been included for network teaming, which includes active-backup, broadcast, load-balancing and round-robin modes
  • Continued enhancements for Linux containers including the introduction of the new LXC flag --privileged=rt which allows the administrator the ability to run real-time processes
  • Support for Intel® Broadwell processors
  • Xen improvements, including updates to netfront and netback drivers
  • Device driver updates (e.g. storage devices, network cards) from key partners, such as:
    • Broadcom
    • Chelsio
    • Emulex
    • Intel®
    • Mellanox
    • QLogic
    • VMware

For more information about this release, please refer to the release notes

The source code is available on our public git repository

Tuesday Nov 03, 2015

Wanted - Technical Writer for Oracle Linux and Virtualization team

Hi everyone, are you a technical writer knowledgeable on Linux and virtualization?

We are looking for an experienced technical writer to work on producing documentation for our Linux and Virtualization products. Our documentation team is responsible for documenting Oracle VM, Oracle PCA, Oracle Linux, Oracle Secure Global Desktop. We are hiring around the area of Linux and Server Virtualization. It is possible that assignments will shift around eventually within the set of products listed above. 

The work environment provides the opportunity for learning and continually acquiring new skills, delivering to revenue generating products and working with the latest network, server and virtualization technologies. Candidates should be prepared to work intensively with our developers and support organization when writing documentation and should be interested not just in writing but also in the technical aspects of publishing documentation.

Our team members are expected to be motivated and to work independently, requiring discipline and excellent time-management skills as well as the technical facilities to communicate across the Internet/Intranet. A strong sense of autonomy and excellent communication skills are essential to facilitate working across geographies and with information sources from technical and product management job functions since the department is highly geographically distributed.

Qualifications: 

  • Native English speaker
  • Solid Knowledge of virtualization technologies and storage
  • Ability to learn new technologies
  • 5 or more years previous experience in writing software documentation
  • Experience with writing documentation for virtualization and / or Operating Sytems products
  • Solid knowledge of the Linux operating system, and its commands. 
  • Familiarity with other operating systems: Solaris, Windows
  • Solid Knowledge of XML, DocBook XML, and XSL style sheets
  • Knowledge of Wikis and HTML- Experience with graphical tools
  • Familiarity with distributed working environments and source code versioning systems such as SVN
  • Familiarity with X86_64 and Sparc hardware architectures is a plus
  • Excellent written and oral communication skills
  • Ability to administer own workstation and test environment
  • Natural curiosity

Position #: 150001G2  - Technical Writer 

Apply here 


Friday Oct 16, 2015

Friday Spotlight: Ceph Storage for Oracle Linux Release 1.0 Technology Preview

The Oracle Linux team is excited to announce the Ceph Storage for Oracle Linux Release 1.0 technology preview.  Based on the the Ceph community Firefly release (v0.80), Ceph Storage for Oracle Linux provides a high performing, scalable storage solution using commodity x86-based hardware, providing critical options for managing the growing storage requirements customers face today.  This release includes the components needed to build Ceph storage clusters, using XFS or BTRFS as supported file systems, as well as the popular Ceph Object Gateway which provides RESTful API access to Ceph Storage clusters with compatibility to OpenStack Swift services.  This technology preview is supported with Oracle Linux 6 and Oracle Linux 7 and the Unbreakable Enterprise Kernel (Release 3 Quarterly Update 6).  To download, please follow the instructions found here and review the release notes for more information.

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