• Satellite 6.1 Public Beta is Now Available

    We are pleased to announce that Satellite version 6.1 is now available for public beta. Satellite 6.1 features numerous enhancements and fixes that improve stability, reliability and scalability. New features include errata management enhancements, automated provisioning of bare metal servers, content ISOs for disconnected environments and the introduction of both OpenSCAP and container management. All current Satellite customers are eligible to participate in the beta. If you would like to...
    Posted 2015-06-17T14:59:31+00:00 - 0
  • Red Hat IT: OpenShift Has Streamlined our Workload. Let It Streamline Yours.

    Are you looking for ways to deliver your applications more quickly and with less effort? Do you need to move more services to the cloud? Red Hat has these same issues and goals. By using our own product OpenShift, we have been able to shorten our release cycle times and support our developers better. We built and deployed our own OpenShift Enterprise Platform-as-a-Service (PaaS) offering and are running it in Amazon Web Services (AWS). This has allowed our teams to have more control over...
    Posted 2015-05-15T19:53:33+00:00 - 0
  • Implementing UEFI support with Satellite 6

    Satellite 6 does not currently support UEFI, but thanks to John Herr from Red Hat and the Foreman Hooks plug-in, it is possible to achieve some level of integration for bare-metal or virtualized provisioning. This tutorial is for Red Hat Enterprise Linux 7.1 running Satellite 6.1 and using Grub2 for PXE booting systems (instead of traditional PXELinux). This example configuration uses Satellite 6 with Capsule running on the same server. When Capsule is deployed remotely, edit the snippets to...
    Posted 2015-04-21T08:09:36+00:00 - 3
  • Discovering bare metal with Satellite 6.1

    Satellite 6.1 will ship with the discovery plug-in pre-installed. The discovery plug-in enables automatic bare-metal discovery of unknown nodes on the provisioning network. These new nodes register to the Satellite Server and upload system facts such as serial ID, network interfaces, memory, and disks, as collected by Facter. After registration, the nodes show up on the Discovered Hosts page and you can initiate provisioning either manually (using the web UI or CLI, or the API) or automatically...
    Posted 2015-04-20T11:14:58+00:00 - 9
  • Drupal in Docker

    Containerizing Drupal Docker is a new technology within the past few years, but many know that linux containers have been around longer than that. With the excitement around containers and Docker, the Customer Portal team at Red Hat wanted to take a look at how we could leverage Docker to deploy our application. We hope to always iterate on how code gets released to our customers, and containers seemed like a logical step to speeding up our application delivery. Current Process The method of...
    Posted 2015-04-08T20:55:23+00:00 - 1
  • Linter for Dockerfile

    We're pleased to introduce a new Red Hat Access Labs application called Linter for Dockerfile. The Docker project provides the means of packaging applications in lightweight containers and has quickly become one of the premier projects for containerization. Docker containers offer several advantages over traditional virtual machines such as reduced size and performance. The Linter for Dockerfile lab application allows you to check basic dockerfile syntax and also allows you to check that a...
    Posted 2015-03-12T17:35:37+00:00 - 0
  • RHEV Manager History Database Size Calculator

    We're proud to introduce a new Red Hat Access Labs app: RHEV Manager History Database Size Calculator. The RHEV Manager History Database Size Calculator helps you estimate how much space and resources will be used by the Red Hat Enterprise Virtualization 3.5 manager history database. The estimate is based on the number of entities and the length of time needed to retain the history records. The following parameters are used to make the estimate: Number of individual entities, including: Data...
    Posted 2015-03-03T04:08:13+00:00 - 0
  • Post Over at community.redhat.com

    Check out our week at FOSDEM and Config Management Camp at community.redhat.com
    Posted 2015-02-04T20:35:21+00:00 - 3
  • Deploying Red Hat Enterprise Linux Atomic Host with Red Hat Satellite 6

    With the ever changing landscape in IT, many enterprise environments are looking for ways to reduce or eliminate downtime, improve security, reduce footprint, and achieve application portability. Red Hat Enterprise Linux Atomic Host provides a way to achieve these goals. In this blog we cover the steps needed to setup Satellite 6 to deploy RHEL Atomic Hosts within your environment. The Environment The lab environment consists of a single Satellite 6 server running an integrated capsule...
    Posted 2015-01-13T14:06:06+00:00 - 13
  • Red Hat launches Red Hat Satellite 5.7

    We are proud to announce the availability of Red Hat Satellite 5.7, the last upgrade to Red Hat Satellite 5. Red Hat Satellite improves Red Hat Enterprise Linux environment management by increasing automation, and adding discipline, simplified administrative workflows and processes. With Red Hat Satellite, you can manage tens, hundreds, or even thousands of servers as easily as one. Red Hat Satellite 5.7 is the latest of the Red Hat Satellite 5 series and features several highlights, including...
    Posted 2015-01-09T20:19:50+00:00 - 0
  • Before you initiate a “docker pull”

    In addition to the general challenges that are inherent to isolating containers, Docker brings with it an entirely new attack surface in the form of its automated fetching and installation mechanism, “docker pull”. It may be counter-intuitive, but “docker pull” both fetches and unpacks a container image in one step. There is no verification step and, surprisingly, malformed packages can compromise a system even if the container itself is never run. Many of the CVE’...
    Posted 2014-12-18T14:30:57+00:00 - 0
  • Container Security: Isolation Heaven or Dependency Hell

    Docker is the public face of Linux containers and two of Linux’s unsung heroes: control groups (cgroups) and namespaces. Like virtualization, containers are appealing because they help solve two of the oldest problems to plague developers: “dependency hell” and “environmental hell.” Closely related, dependency and environmental hell can best be thought of as the chief cause of “works for me” situations. Dependency hell simply describes the complexity...
    Posted 2014-12-17T14:30:37+00:00 - 0
  • Red Hat Satellite 6 Performance Tuning: OS and Web Performance

    Satellite 6 is the next generation Linux systems management tool and is the combined product of many open source projects, including Foreman, Katello, Pulp, Candlepin, and Puppet. Since all of these projects bring different features and functionality, the performance of your Satellite 6 server is essential. This post covers two simple ways to immediately improve performance for the Satellite 6 Server: - Changing your OS tuned profile - Adding an Apache KeepAlive directive to the web...
    Posted 2014-12-10T21:37:28+00:00 - 5
  • Analysis of the CVE-2013-6435 Flaw in RPM

    The RPM Package Manager (RPM) is a powerful command-line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages. RPM was originally written in 1997 by Erik Troan and Marc Ewing. Since then RPM has been successfully used in all versions of Red Hat Linux and currently in Red Hat Enterprise Linux. RPM offers considerable advantages over traditional open-source software install methodology of building from source via tar balls,...
    Posted 2014-12-10T14:30:50+00:00 - 0
  • Disabling SSLv3 on the client and server

    Recently, some Internet search engines announced that they would prefer websites secured with encryption over those that were not.  Of course there are other reasons why securing your website with encryption is beneficial.  Protecting authentication credentials, mitigating the use of cookies as a means of tracking and allowing access, providing privacy of your users, and authenticating your own server thus protecting the information you are trying to convey to your users...
    Posted 2014-12-03T14:30:23+00:00 - 0
  • RHCI Deployment Planner

    We're proud to introduce a new Red Hat Access Labs app: RHCI Deployment Planner Red Hat Cloud Infrastructure (RHCI) allows organizations to deploy an enterprise-ready private cloud flexibly. Organizations can choose to run datacenter virtualization with Red Hat Enterprise Virtualization (RHEV), a scale-out Infrastructure as a Service (IaaS) with Red Hat Enterprise Linux OpenStack Platform (RHELOSP), or run a combination of both. The RHCI Deployment Planner assists IT architects that are...
    Posted 2014-12-02T03:23:04+00:00 - 1
  • VNC Configurator

    We're proud to introduce a new Red Hat Access Labs app: VNC Configurator Virtual Network Computing (VNC) is a common technology allowing remote desktop control for Red Hat Enterprise Linux systems. Although fully supported on all modern RHEL versions, it does not come installed by default. In order to use it, there are several steps involved with installation and configuration. This app helps guide you through the deployment process by asking a few questions, which will provide a script for...
    Posted 2014-12-01T09:18:26+00:00 - 2
  • Registration Assistant

    We're proud to introduce a new Red Hat Access Labs app: Registration Assistant. The Registration Assistant will guide you towards the best registration option for your Red Hat Enterprise Linux environment. Simply select the Red Hat Enterprise Linux Version and the subscription management technology you are using and the app will provide the appropriate commands to register your system. Some screenshots of the app are included below. Feel free to experiment with the app and let us know what...
    Posted 2014-11-12T21:12:57+00:00 - 0
  • Enterprise Linux 6.5 to 6.6 risk report

    Red Hat Enterprise Linux 6.6 was released the 14th of October, 2014, eleven months since the release of 6.5 in November 2013. So lets use this opportunity to take a quick look back over the vulnerabilities and security updates made in that time, specifically for Red Hat Enterprise Linux 6 Server. Red Hat Enterprise Linux 6 is in its fourth year since release, and will receive security updates until November 30th 2020. Errata count The chart below illustrates the total number of security updates...
    Posted 2014-11-12T14:30:28+00:00 - 0
  • Can SSL 3.0 be fixed? An analysis of the POODLE attack.

    SSL and TLS are cryptographic protocols which allow users to securely communicate over the Internet. Their development history is no different from other standards on the Internet. Security flaws were found with older versions and other improvements were required as technology progressed (for example elliptic curve cryptography or ECC), which led to the creation of newer versions of the protocol. It is easier to write newer standards, and maybe even implement them in code, than to adapt...
    Posted 2014-10-20T14:27:34+00:00 - 0
  • POODLE – An SSL 3.0 Vulnerability (CVE-2014-3566)

    Red Hat Product Security has been made aware of a vulnerability in the SSL 3.0 protocol, which has been assigned CVE-2014-3566. All implementations of SSL 3.0 are affected. This vulnerability allows a man-in-the-middle attacker to decrypt ciphertext using a padding oracle side-channel attack. To mitigate this vulnerability, it is recommended that you explicitly disable SSL 3.0 in favor of TLS 1.1 or later in all affected packages. A brief history Transport Layer Security (TLS) and its...
    Posted 2014-10-15T14:44:40+00:00 - 0
  • The Source of Vulnerabilities, How Red Hat finds out about vulnerabilities.

    Red Hat Product Security track lots of data about every vulnerability affecting every Red Hat product. We make all this data available on our Measurement page and from time to time write various blog posts and reports about interesting metrics or trends. One metric we’ve not written about since 2009 is the source of the vulnerabilities we fix. We want to answer the question of how did Red Hat Product Security first hear about each vulnerability? Every vulnerability that affects a Red Hat...
    Posted 2014-10-08T13:30:48+00:00 - 0
  • Satellite 6.0 Discovery Plugin

    Satellite 6.0 features automatic bare-metal discovery which is implemented as a PXE-boot live image with minimized Red Hat Enterprise Linux that is running from memory. Once Satellite 6.0 is configured to boot the discovery image for all unknown hosts, new nodes calls home during the start and wait until they are provisioned. Installation and Setup Before we start setting up the plugin and the image, verify the following prerequisites are met: Satellite 6.0.5 with bare-metal provisioning setup...
    Posted 2014-10-02T14:15:13+00:00 - 7
  • Bash specially-crafted environment variables code injection attack

    Update 2014-09-30 19:30 UTC Questions have arisen around whether Red Hat products are vulnerable to CVE-2014-6277 and CVE-2014-6278.  We have determined that RHSA-2014:1306, RHSA-2014:1311, and RHSA-2014:1312 successfully mitigate the vulnerability and no additional actions need to be taken.   Update 2014-09-26 12:00 UTC We have written a FAQ to address some of the more common questions seen regarding the recent bash issues. Frequently Asked Questions about the Shellshock Bash...
    Posted 2014-09-24T14:00:08+00:00 - 0
  • Kickstart Configuration Tool

    We're proud to introduce a new Red Hat Access Labs app: Kickstart Configuration Tool. Kickstart provides a way for users to automate a Red Hat Enterprise Linux installation. Using kickstart, a system administrator can create a single file containing the answers to all the questions that would normally be asked during a typical installation. Once a kickstart file has been generated it can either be included with boot media or made available on the network for easy and consistent configuration of...
    Posted 2014-09-18T14:22:39+00:00 - 0

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