Archives / March 2016

  • While running in instance in openstack you receive: NoValidHost: No valid host was found. There are not enough hosts available. If you would check the ‘/var/log/nova/nova-conductor.log‘ file you would notice the following error: NoValidHost: No valid host was found. There are not enough hosts available. but still there are no additional information. This post assumes you have enough […]

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  • During a recent deployment for Openstack Swift I had followed the installation guide for the Liberty version and after I had finished the guide I was unable to issue any swift commands. While running the basic: ‘swift stat‘ command I was greeted with “(‘Connection aborted.’, error(111, ‘Connection refused’))” after issuing: ‘swift –debug stat‘ command I […]

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  • In this quick post I will go over the steps required to configure sFlow on HP 25xx and 29xx switches (Procurve/Aruba) If you have the need to get full visibility of your network and you are wondering on how to accomplish this. I highly recommend on installing PRTG and using the sFlow sensor to geather data from […]

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