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• The pre-run function is only executed on dedicated servers. VPS are excluded because VPS usually have only one hard disk.
• If you enable this option, make sure that the "System Recovery Operating Systems" option is configured correctly. The pre-run profile will not run when the customer starts a recovery system.
  Incorrect configuration may result in data loss.
• It is recommended not to use the default "wipe hard disk" profile of NOC-PS, because the execution takes a long time. Below is an example of a quick wipe custom profile.
• Enabling this feature will increase the installation time, as 2 profiles must now be executed.
• The profile will also run on newly assigned servers if you have enabled automatic operating system installation on delivery. 

How to enable the option

Click on "Addons" → "NOC-PS For WHMCS" → "Settings". On the settings page you will find the setting "Pre-run NOC-PS Profile".
Select the desired NOC-PS profile in the dropdown. Further steps are not necessary.

Example NOC-PS Profile

As mentioned above, the use of the standard NOC-PS profile is not recommended.

We have prepared the following example, which only overwrites the first 100 few MB on each memory disk and additionally executes wipefs.
Fields that are not listed are left blank.

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• Name: Freely selectable
• Architecture: 64-bit
• Tags: rescue
• Cache folder on disk: sysrcd510
• ISO file: http://downloads.noc-ps.com/systemrescuecd-x86-5.1.0.iso

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for i in $(lshw -class disk -class tape | grep 'logical name' | awk '{ print $NF }' | grep 'sd\|nvm'); do
    timeout 4010 dd if=/dev/zero of=$i bs=1M20M count=1001 &
done

sleep 4015

for i in $(lshw -class disk -class tape | grep 'logical name' | awk '{ print $NF }' | grep 'sd\|nvm'); do
    wipefs -a -f $i
done

halt

You can customize the commands as you like.

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