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sudo systemctl stop dualshield
sudo systemctl stop dualsql

mkdir dualshield-files

cd dualshield-files

sudo tar -C /opt -czf dualshield.tar.gz dualshield

At this stage, it is strongly recommended you check where the service scripts are located
Run the following command

ls /etc/init.d/ | grep -i dual

If 'dualshield' and 'dualsql' appear in the output, then copy the SysV services scripts as follows

cp /etc/init.d/dualshield .
cp /etc/init.d/dualsql .

If 'dualshield' and 'dualsql' do not exist under /etc/init.d then copy the following systemd service script instead

cp /usr/lib/systemd/system/dualshield.service .
cp /usr/lib/systemd/system/dualsql.service .

scp -r /path/to/dualshield-files someuser@remote.server:/somepath/

On the new machine

cd dualshield-files

sudo tar -xzvf dualshield.tar.gz -C /opt/

sudo cp dualshield.service /usr/lib/systemd/system/
sudo cp dualsql.service /usr/lib/systemd/system/

sudo systemctl enable dualshield.service
sudo systemctl enable dualsql.service

sudo cp dualshield /etc/init.d
sudo cp dualsql /etc/init.d

sudo update-rc.d dualsql defaults 88
sudo update-rc.d dualshield defaults 89

sudo useradd -g dualshield -s /sbin/nologin dualshield

sudo chown -R dualshield:dualshield /opt/dualshield

Add host file entries
(replace dualshield.fqdn.com with your actual dualshield fqdn)

sudo echo "127.0.0.1    dualshield.fqdn.com" >> /etc/hosts
sudo echo "127.0.0.1    $(hostname)" >> /etc/hosts

sudo systemctl start dualsql
sudo systemctl start dualshield

sudo /etc/init.d/dualsql start
sudo /etc/init.d/dualshield start