Linux Screen Command

It’s not one of the populer Linux Command , but its one of those programs that you just can’t stop using once you’ve started.
screen
screen [options] [command [args] ]
Provide ANSI/VT100 terminal emulation, making it possible to run multiple full-screen pseudo-terminals from one real terminal, and letting you manipulate and save your screen input and output, [...]

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OpenNMS

OpenNMS is an enterprise-grade network monitoring platform developed under the open source software model. It consists of a community-supported, open-source project as well as an organization offering commercial services, training and support. (Wikipedia)
Features

Service polling – determining service availability and latency, including distributed measurement of availability and latency, and reporting on the results
Data collection – collecting, [...]

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Sync Local Time with Hardware Clock

Sometime , be need to sync local date and time that was seted by “date” command , with Computer Hardware clock.
for doing so :
#date  –set –date “2008-12-23  24:00″
and then sync it .
#hwclock  –systohc

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Times to find out consuming Resource in MySQL

Times to find out consuming Resource in MySQL

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