Category Archives: advanced

Cloudkick customed plugins for windows

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Cloudkick which is part of RackSpace provides Agent based monitoring for external servers and cloud servers. Other than monitoring computer resources such as CPU, memory, HDD utilization. It is able to cater for customed check which is known as customed plugin. In other words, Cloudkick offers limitless way of administrator to monitor their IT assets as host level which is limited to the operating systems shell scripting support as well as limited to the creativity of the scripters.

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Automating ossec installation in linux

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One of the challenges that I have faced in linux environment were to automate installation.

Of course it is simple to script using bash in linux to run rpm or deb binary installation.

What if the installation comes with an interactive installation or installer which is coded as a bash script. Yes, I am looking at you OSSEC . Continue reading →

Not enough space in tmp due to eaccelerator

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OS : Linux CentOS 5, cPanel® 11.24

Problem :

a. Centos /tmp keeps on getting full, culprit identified is EAcclerator.
b. Production server that needs minimal down time minimal changes.

Scope :

a. OS is CentOS 5.2 redhat
b. /var has more than 4GB free space
c. Have administrator and root access

Possible solution :

a. Recompile Apache with EAccelerator disabled.
b. Create cron to clear to clear space in regular interval.
c. Create a customed script that clears EAccelerator cache at regular interval.

What is your choice ? Continue reading →