Set Passphrase for SharePoint 2010 Farm

The Passphrase, for your SharePoint farm, is required to add a new server to the farm.

If you have forgotten the passphrase then there is no method to retrieve or recover it but you can change it.

The passphrase resides in the SharePoint Configuration database and below are the steps to set/change it:

1. Start SharePoint 2010 Management Shell from Start --> All Programs --> Microsoft SharePoint 2010 Products --> SharePoint 2010 Management Shell
2. Write $passp = ConvertTo-SecureString -asPlainText -Force. This will prompt you for a string, which is going to be set as the new passphrase of your farm. The string is converted to SecureString, which is the expected type of the passphrase
3. Next write Set-SPPassPhrase -PassPhrase $passp -Confirm. It will ask for a confirmation after which your new passphrase will be set.