​If you may get an error Permission Denied Publickey while login into Amazon EC2 server,

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We have already described Nagios installation, Client configuration in the last post, this is explain to service group configure in Nagios server.

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We have already described MQTT installation in the previous post, also need to test the scalability and load behaviour of MQTT environments.

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Mosquitto is an open source message broker, It is a very lightweight uses a publish, subscribe messages. Implements that MQTT version 3.1 and 3.1.1.

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If you may receive an error like, No Module Named Setuptools on Python while installing related on python packages in Linux system

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This post describes to install maven package on your ubuntu system, We can install in different ways,

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If you may get an error when you start rsync service, rsync is not running

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