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Shellshock bug – vulnerability on Bash shell
Millions of computers are using bash shell (command interpreter ). New security flaw has been found on bash(Bash Code Injection Vulnerability (CVE-2014-6271) and it allows attackers can take the...
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What is VMware vCloud ? How it works ?
In IT infrastructure market, Cloud is the trending topic and technology from last few years. Most of the hardware vendors and operating systems developers have already started working to integrate the...
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VMware vCloud Director Build From Scratch – 1
In this VMware vCloud Director article series, this article is going to demonstrate that how to attach the vCloud director to VMware vCenter Server and how to create a provider virtual Data-center....
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VMware vCloud Director Build From Scratch – 2
In this article ,we will see the remaining vCloud director’s quick setup which we have left out in the last article.We have already seen that how to attach the vCloud director to VMware vCenter...
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Redhat Enterprise Virtualization – Overview
Red Hat had played vital role on Linux revolution and they proved that Linux can be used on the enterprise computing. Today Red Hat is the world’s largest distributor of Linux. To reduce the...
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Redhat Enterprise virtualization- Installing RHEV-H
To install Redhat enterprise virtualization hypervisor(RHEV-H), You need a hardware with “virtualization Technology”(VT-X) enabled processors.Once you have such a hardware ,then you can start...
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Redhat Enterprise virtualization Manager – Install & configure
To manage the redhat enterprise virtualization hypervisor (RHEV-H) , you have to configure the Redhat Enterprise Virtualization Manager (RHEV-M) on Redhat Enterprise Linux 6.x operating system. RHEV-M...
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How to enable root user on Redhat Hypervisor ?
Redhat Enterprise virtualization’s core part is Redhat Hypervisor. I have never been worked such a long hours to get/recover the root password on any Unix/Linux operating system. Even i have recovered...
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How to create a Datacenter and Cluster on RHEV-M ?
Redhat Provides the wonderful administrative portal to manage the Redhat Enterprise virtualization environment. Redhat enterprise virtualization Manager is responsible to provide the administrative...
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How to add ISCSI Storage to RHEV ?
To store the virtual machines , you need centralized storage like SAN or NFS file server. Not everyone in world can afford the SAN cost since it requires lot hardwares like fiber channel cables, SFP...
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Architecture of Exadata Database Machine – Part 2
Exadata Database machine provides a high performance,high availability and plenty of storage space platform for oracle database .The high availability clustering is is provided by Oracle RAC and ASM...
View ArticleExploring the Exadata Storage Cell Processes – Part 3
Exadata storage cell is new to the industry and only oracle is offering such a customized storage for oracle database. Unlike the traditional SAN storage ,Exadata data storage will help to reduce the...
View ArticleExadata – CELLCLI command Line Utility1 – Part 4
Exadata storage is managed by CELLCLI command line utility. Management process (MS) will communicate with cellcli to maintain the configuration on the system. CELLCLI utility can be launched by user...
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Exadata Storage Cell – Administrating the Disks – Part 5
Exadata Storage server uses the cell software to manage the disks. Like volume manager, we need to build couple of virtual layers to get the grid disks.These griddisk will be used to create the ASM...
View ArticleExadata – Distributed Command-Line Utility (dcli) – Part 6
Distributed command line utility(dcli) provides an option to execute the monitoring and administration commands on multiple servers simultaneously.In exadata database machine , you may need to create...
View ArticleExadata Storage Cell Commands Cheat Sheet
It is not an easy to remember the commands since most of the UNIX administrators are working on multiple Operating systems and different OS flavors. Exadata and ZFS appliance are adding additional...
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VMTurbo 5.0 – Control in the Software Defined Universe
Virualization is very powerful technology but it comes with greater responsibility as well. If you do not configure or maintain your virtual environment properly, it will affect whole environment. Do...
View ArticleOracle Solaris 11 – Beginners Guide
If you are working as a Sun Solaris system administrator, you know that how rapidly Solaris operating system is changing from version to version. There were a lot difference between Solaris 9 and...
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Dynamically Adding Memory CPU to VM on VMware
VMware vSphere’s hot-add Memory and hot-plug CPU functions allow you to add the CPU and Memory while virtual machine is up and running. It will help you to add the additional resources whenever...
View ArticleLDOM – How to find the physical Memory size ?
In UnixArena,we have talked more about LDOM aka Oracle VM for SPARC.But this article will provide the solution to identify the installed physical memory of the server from control domain. There is no...
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