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A comparison of service-oriented architecture and frameworks

A comparison of service-oriented architecture and frameworks IntroductionPapazoglou, (2003) organised SOA in four architectural layers: Service Foundations, Service Composition, Service Management and Service Engineering and outlined a host of technologies that could be utilised when developing and deploying an SOA system to overcome the challenges of a distributed enterprise system, Read more…

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Public DNS services

I joined a few older posts together (and redirected those old posts here) to create a single place for my public dns services list and instructions. Short list of IP addresses if you know what your doing google: 8.8.8.8 8.8.4.4 opendns: 208.67.222.222, 208.67.220.220 quad9 (IBM): 9.9.9.9 cloudflare: 1.1.1.1, 1.0.0.1 You Read more…

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Installing vagrant on centos 7 with virtualbox provider

[et_pb_section fb_built=”1″ admin_label=”section” _builder_version=”3.0.47″][et_pb_row admin_label=”row” _builder_version=”3.0.48″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”][et_pb_column type=”4_4″ _builder_version=”3.0.47″ parallax=”off” parallax_method=”on”][et_pb_text admin_label=”Text” _builder_version=”3.0.74″ background_size=”initial” background_position=”top_left” background_repeat=”repeat”] This is a short post on Installing vagrant on centos 7. First, you need to download vagrant – head over to http://www.vagrantup.com/downloads and copy the url to the current vagrant package in Read more…

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Subnetting class C networks

Subnetting class C networks Benefits of Subnetting: Reduced Network Traffic Optimised Network Performance – as a result of reduced traffic Simplified management Facilitated spanning of large geographical distances   How to create subnets: Determine the number of required network ID’s one for each subnet one for each WAN connection Determine Read more…