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Technical randomness

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  • Dev,  Free Software,  Linux

    Git: push a new commit before a tag

    1 April 2014

    Last day, I faced a case where I had to backport a bug in a software which was released by a git tag. As far I know, there is no easy way to simply push a patch before a tag, so here is how I proceeded: # Checkout the upstream git checkout master git fetch --all git pull # List…

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  • Linux,  Virtualization

    Two articles about OpenStack Quantum

    30 September 2012

    Sebastien Han and myself wrote 2 articles about OpenStack Quantum. Quantum Plugin Comparison From Nova-network to Quantum Enjoy the reading !

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  • Linux,  Openstack,  Tests

    First Guide to Deploy OpenStack Folsom on Ubuntu 12.04

    8 September 2012

    F release aka Folsom, will be at the end of the month the next stable release of OpenStack. I could not wait until the official release to perform some tests, and also decided to get their hands dirty in playing without using DevStack. Reading the mailing list every day, I can see that I’m not alone who is testing it,…

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  • Linux

    How to fix packets lost with AR9285 Driver in Ubuntu 12.04

    10 August 2012

    What a nice surprise to see that after a fresh setup of Ubuntu 12.04, you can’t use Internet connection ! That’s really weird, and in the same time strange because I only have this issue with one Access Point. I can connect to the Wireless Network, but after 5 seconds I can see that I lost 30% of packets and…

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  • Dev,  Free Software,  Linux,  Openstack,  Virtualization

    Bringing High Availability to Quantum Server

    17 July 2012

    Introduction Quantum is going to be a core project in OpenStack next release (Folsom). If we use Quantum as the Network Manager, we can’t configure nova-network in multi_host mode, that’s why we loose High Availability for nova-network. Quantum-Server can be a single-point-of-failure, that’s why I was thinking about how to fix that. As everyone in the list, I could see…

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  • Free Software,  Linux,  Openstack,  Réseaux,  Tests

    Running an OpenFlow Network with OpenStack Quantum & Floodlight

    10 July 2012

    Introduction While Quantum is still incubating in OpenStack Essex, we can see Open-Source plugins compatible with differents technologies. For remind, a Plugin makes possible the communication between Networking technologies & Networking features in OpenStack, like virtual NICs and virtual Bridges. Most of the features we can find today are L2. In a close future, we will see extended L3 features…

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  • Free Software,  Linux,  Openstack,  Virtualization

    Openstack Essex – Guide for Ubuntu 12.04

    30 April 2012

    It has been a long time since I didn’t write something here. But today, I’m proud to release my first documentation on OpenStack. I’ve been working for three weeks with StackOps for my internship, and my work is about Quantum (Networking as a service in OpenStack).   It was quite difficult to have a working infrastructure because Quantum is only…

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