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rootSecure and Super Nodes


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  • Create systemd service units for zend and tracker
  • Stop zend
  • Start zend and zentracker services
  • Get status of zend and zentracker services
  • Enable units at boot




DescriptionCommand
1

Create a systemd unit file for zend, copy and paste the entire block of text


Code Block
echo \
"[Unit]
Description=Zen daemon

[Service]
User=$USER
Type=forking
ExecStart=/usr/bin/zend -daemon -pid=$HOME/.zen/zend.pid
PIDFile=$HOME/.zen/zend.pid
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target" | sudo tee /lib/systemd/system/zend.service


2Create a systemd unit file for the Node Tracker, copy and paste the entire block of text


Code Block
echo \
"[Unit]
Description=Zen node daemon installed on ~/nodetracker/

[Service]
User=$USER
Type=simple
WorkingDirectory=$HOME/nodetracker/
ExecStart=$(which node) $HOME/nodetracker/app.js
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target" | sudo tee /lib/systemd/system/zentracker.service


3

Stop zend and apply ownership to the non-root user of all files created since part 6.8



Code Block
zen-cli stop && sleep 30 && sudo chown -R $USER:$USER ~/




4Test the unit files


Code Block
sudo systemctl start zend zentracker


5

Check the status of both zend and the tracker, both should return active (running). If the status doesn't send you back to a command prompt, exit the status details by pressing CTRL + c



Code Block
sudo systemctl status -n 0 zend zentracker



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titleExample Output

zenops@node01:~$ sudo systemctl status -n 0 zend zentracker
● zend.service - Zen daemon
Loaded: loaded (/lib/systemd/system/zend.service; disabled; vendor preset: enabled)
Active: active (running) since Thu 2018-05-24 22:31:30 EDT; 34s ago
Process: 21612 ExecStart=/usr/bin/zend -daemon -pid=/home/zenops/.zen/zend.pid (code=exited, status=0/SUCCESS)
Main PID: 21615 (zend)
Tasks: 16
Memory: 810.0M
CPU: 18.963s
CGroup: /system.slice/zend.service
└─21615 /usr/bin/zend -daemon -pid=/home/zenops/.zen/zend.pid

● zentracker.service - Zen node daemon installed on ~/nodetracker/

Loaded: loaded (/lib/systemd/system/zentracker.service; disabled; vendor preset: enabled)
Active: active (running) since Thu 2018-05-24 21:34:27 EDT; 1h 1min ago
Main PID: 19648 (node)
Tasks: 10
Memory: 38.9M
CPU: 4.110s
CGroup: /system.slice/zentracker.service
└─19648 /usr/local/bin/node /home/zenops/nodetracker/app.js


6

Follow the logs from the tracker to check for the first challenge being received, exit by pressing CTRL + c

Be patient for the tracking server to issue a challenge

Wait for the challenge to complete, the total time should be fewer than 200 (Secure Node) or 100 (Super Node) seconds to meet requirements

During a challenge, your node might be unresponsive to commands, DO NOT REBOOT OR STOP ZEND!


Code Block
sudo journalctl -fu zentracker


7If both systemd unit files work correctly (showing active and running in step 6) enable them at boot


Code Block
sudo systemctl enable zend zentracker



Part 8

Part 9 of 11 - Configure Services

Part 10

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