# Installation Requirements vtenext 22.05.1 **1. Minimun Hardware requirements:** - Ram: 2 GB - Hard Disk: 20 GB - CPU: 2 Ghz dual core **2. Recommended Hardware requirements:** - Ram: 4 GB - Hard Disk: 80 GB - CPU: 2 Ghz quad core **3. Recommended Operating System:** The recommended operating system for the vtenext installation is **Ubuntu 20.04 LTS 64 bit Server**. On these systems the crm is installed out-of-the-box, without particular configuration, expect the arrangement of the php.ini file parameters like in the vtenext setup wizard. **4. Requirements for other Linux Operating System:** It is possible to install VTE also on other Linux operating system, especially it must be present: - php 7.0, 7.1, 7.2, 7.3, 7.4 - mysql 5.x, 8.0 - apache 2 >= 2.4.13 /nginx **5. Needed PHP modules:** - curl - gd - imagick - imap - json - ldap - mbstring - mysql - xml - zlib **6. Suggested PHP modules:** - apcu - bcmath If the connectivity is requested toward other database, for example Microsoft SQL Server or Oracle, it is necessary to arrange the necessary libraries (Ubuntu php5-sybase and oci8 library). It is better to put the VTE application in the machine with linux installation and head towards to Microsoft SQL Server database, installed on Windonws system. \* The sybase libraries are not available from PHP version 7. To interface with SQL Server with this version of PHP see the dedicated manual.