It's possible to get a list of users of active users in IDM/IPA with formatted date and time by running this one liner command. It gets you the list of users with last successsful authentications to IDM/IPA server. Very handy command when it's required for Audit purposes. It will also give you the list of users who last changed password and you can modify it according to your requirements.
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If you are getting this error while installing Nagios Core on RaspberryPi run these commands to resolve the error and get Nagios up and running in no time. These commands wil need to be run as ROOT. You need to restart the nagios service after you carry out the changes.
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Its now possible to install latest Nagios CORE version on Raspbian by following the steps in this article. Before writing this article I Googled for the same but couldn't find a single article covering install of latest version of Nagios on RasberryPi hence this guide. It has been fully tested and working on my personal RasPi.
This guide was originally written for Ubuntu but will work for Raspbian (Debian Jessie) flavour for RasberryPi as well. It might work for all debian distros but not guranteed, you can try it out yourself.
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Its possible to use awk in Alias command. I did that by simply just modifying some parenthesis and there you go, had a working awk command.
All that it required was closing awk in double quotes as opposed to single quotes and forward slash before the "$" variable. This alias command is for printing the default Gateway for an interface.
alias eth0-gw='route -n | grep eth0 | awk "NR==1{ print \$2 }"'
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It's very easy to create a Kickstart tree in Spacewalk and that to in a Automated fashion for provisioning hosts. All you have to do is create a Base Channel for CentOS and then create a Repo and then marry both and then at the time of Repo sync choose the option of "Creating a kickstartable tree".
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