I hope you know to install Nagios monitoring server on CentOS, this post describes to configure the Nagios client in Ubuntu machine. very simple steps to install,

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After have installed ProFTPD latest version and configured in on your machine, if you may get an error while restart the ProFTPD service, proftpd Unable to Use World Readable AuthUserFile.

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Once you have installed an Apache 2.2 version on Linux system, when open the website on browser shows an error,

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forever is very helpful function to create applications that are always running node.js to forever.

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On the last post described to install mongoDB 3.0.X version, the following steps are install 3.2.6 with easy way,

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On the previous post described add known hosts automatically and this is multiple ssh login with the execute the command once logged.

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If your want to hash a password use mkpasswd command, it is very helpful to generate encrypted password through Linux command,

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