If you have an error message when you launched FastX2 client, you will see this error “The command gnome-session existed with signal 15” on CentOS 7 for FastX2.

Step 1: This error is caused by selinux on CentOS 7. Do the following /etc/selinux

SELINUX=disabled

Trying to use the command “setenforce 0” does not seems to be able to fix the issue.

Step 2: Remember to install GNOME Desktop

# yum groupinstall "GNOME Desktop" "Graphical Administration Tools"

Step 3: Uninstall the StarNetFastX2 and reinstall

# rpm -e StarNetFastX2
# rpm -Uvh --force StarNetFastX2-2.4.7.rhel6.x86_64.rpm