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Posts Tagged ‘ Red Hat ’
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What is MongoDB?
MongoDB (from “humongous”) is a scalable, high-performance, open source, schema-free, document-oriented database. Written in C++. MongoDB bridges the gap between key-value stores (which are fast and highly scalable) and traditional RDBMS systems (which provide structured schemas and powerful queries).
MongoDB is very interesting document-oriented database, because it has really awesome features:
- Document-oriented storage (the simplicity and power of JSON-like data schemas)
- Dynamic queries
- Full index support, extending to inner-objects and embedded arrays
- Query profiling
- Fast, in-place updates
- Efficient storage of binary data large objects (e.g. photos and videos)
- Replication and fail-over support
- Auto-sharding for cloud-level scalability
- MapReduce for complex aggregation
- Commercial Support, Training, and Consulting
This guide uses EPEL-repository and Chris Lea’s Yum Repository where you can find MongoDB RPM packages (i386 and x86_64) for CentOS and Red Hat (RHEL).
» Continue Reading "Howto Install MongoDB on CentOS Linux and Red Hat (RHEL) Linux"
This howto explains howto install Google Chrome Web browser on Fedora, CentOS and Red Hat (RHEL). Best way to install and keep up-to-date with Google Chrome browser is use Google’s own YUM repository.
Enable Google YUM repository
Add following to /etc/yum.repos.d/google.repo file:
32-bit
[google] name=Google - i386 baseurl=http://dl.google.com/linux/rpm/stable/i386 enabled=1 gpgcheck=1 gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub
» Continue Reading "Howto Install Google Chrome Web Browser with YUM on Fedora, CentOS, Red Hat"
This is a quick tip, howto find, query and list all available packages from a specific Yum repository/repositories on Fedora, CentOS, Red Hat (RHEL). This trick does not show the already installed packages from selected repository.
List All Repositories and Check Repository ID’s
OpenOffice.org 3.2 is released and the new version has many new features. Example following:
- Faster Start Up Times - OpenOffice.org 3.2 Calc and Writer have both reduced 'cold start'
- ODF 1.2 Support - closer conformance to OASIS ODFF/OpenFormula specifications.
- Improved Proprietary File Support - Password protected Microsoft Office XML files, Filters for AportisDoc and PocketWord now support type detection based on DocType
- Support for Postscript based OpenType fonts
This is quick guide to install OpenOffice 3.2 with using OpenOffice.org original RPM packages. Currently, for example, Fedora's rawhide repository can be found in OpenOffice.org 3.2 packages, but they refused to install properly. So it is easier to use OpenOffice.org own RPM packages.
» Continue Reading "Howto Install OpenOffice.org 3.2 on Fedora 12, CentOS 5.4, Red Hat (RHEL) 5.4"
VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.
VirtualBox supports a large number of guest operating systems:
- Windows 3.x
- Windows NT 4.0
- Windows 2000
- Windows XP
- Windows Server 2003
- Windows Vista
- Windows 7
- DOS
- Linux (2.4 and 2.6)
- Solaris
- OpenSolaris
- OpenBSD
This howto shows howto install VirtualBox on Fedora 12, CentOS 5.4 and Red Hat (RHEL) 5.4. This howto advantage Virtual Box yum repositories.
» Continue Reading "Howto Install VirtualBox (with yum) on Fedora 12, CentOS 5.4, Red Hat (RHEL)"
