rhel - Same Null, Different Cloud

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rhel

A collection of 5 posts

Fixing MSR 0xe1 to 0x0

Fixing MSR 0xe1 to 0x0

When running KVM in a nested virtualization you may run into the following error when attempting to launch machines. Example errors qemu-system-x86_64: error: failed to set MSR 0x38d to 0x0 qemu-kvm: error: failed to set MSR 0x48e ... What does this mean? This error is caused by MSRs not being

TripleO(-Ansible) Bootcamp

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TripleO(-Ansible) Bootcamp

In this post, I intend to bring new folks into TripleO-Ansible by explaining how TripleO is evolving. We're building a modular set of Ansible roles, playbooks, plugins, and scripts, which are reforming the foundation of enterprise-ready OpenStack environments. While that's awesome in its own right, these

System Administration

XenServer upgrade failed to boot

Virtual Instance Fails to boot after an upgrade If you have upgraded your installed Linux Virtual Machine, and it no longer boots you may have FooBar'd your boot parameters for your installation. In most cases this can fixed, and in the following lines I will show you how.

Monitoring Network Traffic in Linux

Basic but Essential Network Monitoring Basic Administration principles state that you, the administrator, should have a strong grasp on what your server is doing at all times. One Major metric that is sometimes missed is overall network activity. The metrics gained by proper network monitoring can reveal your traffic trends

DD and the Mighty Disk Destroyer or Duplicator

As the title states dd is the Mighty Disk Destroyer, though it can also be your savior. Many Admins fear and even cower when the letters DD are mentioned together; fear not, DD can be your best friend. Being that you are a Linux Professional and or want to be

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