Root Privileges

You can install the SIMULIA Execution Engine station as a root user or a non-root user.

The SIMULIA Execution Engine station is typically installed from an account with root privileges. The SIMULIA Execution Engine station can also be installed from a nonprivileged account, but there are certain restrictions you need to be aware of when doing so:

  • The default install location can be written only by a privileged user. If you are installing as a nonprivileged user, you will have to change the install directory to a directory to which you can write.

  • Installing a SIMULIA Execution Engine station as a service requires root privileges. If you install from an unprivileged account, the SIMULIA Execution Engine station will have to be started manually, and you cannot log out while the SIMULIA Execution Engine station is running.

  • The station Security Feature (called run-as-user) requires the program SMAFIPplaunch to be installed with set-user-id root privileges. A SIMULIA Execution Engine station installed as an unprivileged user cannot connect to a SIMULIA Execution Engine that has the SIMULIA Execution Engine station security feature enabled unless the file SMAFIPplaunch is manually changed to have set-user-id root privileges. Instructions for performing this step are displayed during the installation. For more information, see Configuring SIMULIA Execution Engine Stations for Run-As on Linux.