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Month: March 2017

Computing and Networks

PPA Public Key Error

March 30, 2017March 30, 2017 mikewebbliveLeave a comment

apt-get is a great tool.  It is awesome.  In fact coming from the days when compiling from source and installing was the only option, any good package management system as freaking AWESOME. (geez just had a flash back to the days of RPM dependency hell when Red Hat first rolled that out) Though, every now… Continue reading PPA Public Key Error

Computing and Networks

QEMU-GlusterFS native integration

March 27, 2017March 27, 2017 mikewebbliveLeave a comment

I was never a fan of FUSE performance (looking at you QNAP),  the performance boost in block device access for Qemu/KVM based hosts using POSIX vs FUSE is impressive.  Gluster as a SDS solution for oVirt self hosted engine is worth investigating for a multitude of use cases. My own testing for HA replication has… Continue reading QEMU-GlusterFS native integration

Computing and Networks

Nested Virtualisation

March 22, 2017May 24, 2017 mikewebbliveLeave a comment

Hosting a virtual machine inside a virtual machine KVM trickery for conceptualisation  and testing. If your server/host supports VT-x, it goes to say so should the guests.  When trying to setup a oVirt node with hosted engine in KVM I was coming to a grinding halt with the following error. [ ERROR ] Failed to… Continue reading Nested Virtualisation

Computing and Networks

Wireshark capture permission errors

March 18, 2017March 18, 2017 mikewebbliveLeave a comment

I installed Wireshark the other day on Ubuntu 16.10 so I could analyse what is “going over the wire” in GNS3 and later on physical network topologies. Unfortunately, due to the way I installed wireshark, the way it handles the security of low level device access (PCAP) , coupled with a touch of me not… Continue reading Wireshark capture permission errors

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