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MongoDB backup

# This will create a dump/MovIt directory with all documents.
mongodump --db MovIt
# This will create an archive of the dump
tar cvzf movit_db_backup.tar.gz dump

MongoDB restore

# Extract the archive (will create the dump directory)
tar xvzf movit_db_backup.tar.gz
# Make sure backend if disabled when updating (it is using the database)
sudo systemctl stop movit_backend.service
# Drop current content of database
mongo MovIt --eval "db.dropDatabase();"
# Restore the DB (from the dump directory)
mongorestore
# Re-Start backend
sudo systemctl start movit_backend.service 

MongoDB (Re) Install from scratch

# Remove MongoDB from system
sudo apt-get remove mongodb
# Cleanup database files 
sudo rm -rf /var/lib/mongodb
# Re-Install MongoDB
sudo apt-get install mongodb
# Enable MongoDB
sudo systemctl enable mongodb
# Start MongoDB
sudo systemctl start mongodb
# Init MOvIT database
cd ~/MOvITPlus/MOvIT-Detect-Backend/
sudo node initDatabase.js

#WiFi Changes

Step 1: Change Hotspot to 5GHz

Modify file : /etc/hostapd/hostapd.conf to:

ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
country_code=CA
interface=wlan0
driver=nl80211
ssid=Movit-NOCONF
hw_mode=a
channel=0
wmm_enabled=0
macaddr_acl=0
auth_algs=1
wpa=2
wpa_passphrase=movitplus
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP CCMP
rsn_pairwise=CCMP