Please note:  There is no need to install a new instance of DualShield on the new machine, as this process will do this automatically!

On the existing machine

  • Stop services
sudo systemctl stop dualshield
sudo systemctl stop dualsql
  • Create a working directory
mkdir dualshield-files
  • Enter the working directory
cd dualshield-files
  • Compress the whole installation folder
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 .
  • Copy all files to the new machine
scp -r /path/to/dualshield-files someuser@remote.server:/somepath/
On the new machine
  • Enter the working directory
cd dualshield-files
  • Extract dualshield folder
sudo tar -xzvf dualshield.tar.gz -C /opt/
  • If Systemd (see above) Copy the following Service service script
sudo cp dualshield.service /usr/lib/systemd/system/
sudo cp dualsql.service /usr/lib/systemd/system/
  • Register services
sudo systemctl enable dualshield.service
sudo systemctl enable dualsql.service
  • If SysV (see above) Copy the following service script
sudo cp dualshield /etc/init.d
sudo cp dualsql /etc/init.d
  • You will need to also register the SysV services
sudo update-rc.d dualsql defaults 88
sudo update-rc.d dualshield defaults 89
  • Create dualshield user
sudo useradd -g dualshield -s /sbin/nologin dualshield
  • Change dualshield directory owner
sudo chown -R dualshield:dualshield /opt/dualshield
sudo echo "127.0.0.1    dualshield.fqdn.com" >> /etc/hosts
sudo echo "127.0.0.1    $(hostname)" >> /etc/hosts
  • Start services if systemd
sudo systemctl start dualsql
sudo systemctl start dualshield
  • Start services if SysV
sudo /etc/init.d/dualsql start
sudo /etc/init.d/dualshield start




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