Configure 1and1 VPS with mcrypt and install Magento

**Your server does not meet the following requirements in order to install Magento. The following requirements failed, please contact your hosting provider in order to receive assistance with meeting the system requirements for Magento:** * **You are missing the **mcrypt extension**** ## Deliverables **My 1and1 VPS isn't presently capable of hosting Megento. I would like the coder to sort out the mcrypt extension, ensuring that the remaining websites on my VPS are unaffected and then install the base Magento library. ** ** ** **Your server does not meet the following requirements in order to install Magento. The following requirements failed, please contact your hosting provider in order to receive assistance with meeting the system requirements for Magento:** * **You are missing the **mcrypt extension**** ****The following requirements were successfully met:**** * ****You have** PHP 5.2.0 (or greater)** * ******Safe Mode is **off******** * ********You have** MySQL 4.1.20 (or greater)****** * **********You have the **curl extension************ * ************You have the **dom extension************** * **************You have the **gd extension**************** * ****************You have the **hash extension****************** * ******************You have the **iconv extension******************** * ********************You have the **pcre extension********************** * **********************You have the **pdo extension************************ * ************************You have the **pdo_mysql extension************************** * **************************You have the **simplexml extension****************************