NoMachine
See version
Open terminal
su
Type root password
cd /tmp
wget https://download.nomachine.com/download/first two digits of the version/Linux/nomachine_version_x86_64.tar.gz
ex.
wget https://download.nomachine.com/download/7.6/Linux/nomachine_7.6.2_4_x86_64.tar.gz
tar -C /usr/ -xzf nomachine_*
/usr/NX/nxserver --install redhat
start nxserver
/etc/init.d/nxserver start
enable at system boot
nano /etc/local.d/nxserver.start
and inside you copy
#!/bin/sh
/etc/init.d/nxserver start
chmod +x /etc/local.d/nxserver.start