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OPS235 Lab 2

355 bytes added, 08:42, 18 January 2017

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# Log into your c7host machine, and switch to root user.

# perform a software update on your '''c7host''' VM by issuing the following command: <code>yum update</code>

# {{Admon/important |Yum Update Hangs|If you experience yum update "hanging" around item 689 of over 1200 packages, issue the following commands: <source>pkill systemctlyum clean allyum update</source>'''NOTE:''' Do NOT press '''<ctrl>c''' since it may cause your machine to cause a kernel panic when you restart your machine.}} <ol><li value="3">As root, install the virtualization software by issuing the command: <code>yum install qemu-kvm qemu-img virt-manager libvirt libvirt-python \ python-virtinst libvirt-client virt-install virt-viewer bridge-utils</code> </li># <li>'''Restart your c7host virtual machine'''. If you fail to do this, you may experience virtualization network problems.

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{{Admon/note|About KVM|There are actually several key programs installed for virtualization using KVM:<ul><li>'''kvm/qemu''' - the hypervisor and other hardware emulation systems.</li><li>A system service named '''libvirtd''' that manages the VMs.</li><li>A graphical tool for managing virtual machines ('''virt-manager''') and the '''virsh''' command-line tool.</li></ul>}}

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<ol/li><li ~~value="5"~~>Start the virtualization service: <code>systemctl start libvirtd</code> '''NOTE:''' The most recent variants of Centos and Fedora are using a service called '''firewalld''' that is intended to replace '''iptables''', however the ''iptables'' service is still in relatively common usage. In this course we will concentrate on ''iptables''. </li>

<li>To Disable firewalld issue the following commands:

<code>systemctl disable firewalld</code>

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