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Technical Notes

Thu, 01/03/2008 - 21:46 — siteadmin

These notes are my personal online notebook of useful commands and "how-to's". You are welcome to make use of them if you find them helpful. They obviously don't come with any warranty! Click on one of the category tags above for the notes in any category.

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Moving from CentOS 6 to 7

Sat, 08/09/2014 - 19:02 — siteadmin

KVM: setting up bridged mode

systemctl disable NetworkManager
systemctl enable network
systemctl stop NetworkManager
systemctl start network
  • The only problem with the above is that network does not seem to start on boot.
Topic: 
CentOS
KVM
  


  

          

    
      







  
        
KVM disk performance

    
      Sat, 06/02/2012 - 00:51 — siteadmin
  
  

    
I am testing using iozone.


Here is a recommendation from serverfault.com/…o-performance


The optimal configuration is (usually) as follows:
Topic: 
KVM
  


  

          

    
      







  
        
Migrate Xen to KVM on RHEL/CentOS 6

    
      Sun, 11/28/2010 - 01:33 — siteadmin
  
  

    
Red Hat's own documentation can be found here:

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtua...


Set up bridging on server:


Topic: 
Xen
KVM
  


  

          

    
      







  
        
Installing KVM on CentOS 5.5

    
      Tue, 05/11/2010 - 01:12 — siteadmin
  
  

    
Note that this now only works for the 64 bit version of CentOS


useful link: http://itscblog.tamu.edu/startup-guide-for-kvm-on-centos-6/


yum groupinstall "Virtualization*"

yum install dejavu-lgc-sans-fonts

echo "BRIDGE=br0" >> /etc/sysconfig/network-scripts/ifcfg-eth0

#now check it looks ok:

vi /etc/sysconfig/network-scripts/ifcfg-eth0


Topic: 
CentOS
KVM
  


  

          

    
      




  



  

          

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