1. Preparation

  • A UniFi online account is needed.

  • A PoE adapter is needed if the switch does not have a PoE port.

  • The cloud keys run Debian 8.11.

2. Factory Reset

  • Press and hold the Reset button for more than five seconds.

  • The UniFi Cloud Key is set to DHCP by default.

  • The default fallback IP address of the UniFi Cloud Key is 192.168.1.30.

  • The default password of the ubnt account is ubnt.

  • The default hostname is UniFi-CloudKey.

3. Cloud Key Configuration for Air Conditioners

  • Type systemctl disable nginx and press Enter.

  • Type systemctl disable unifi and press Enter.

  • Type systemctl stop nginx and press Enter.

  • Type systemctl stop unifi and press Enter.

  • Type sed -e "s/UniFi-CloudKey/smru-ac24-mrm/" -i /etc/hostname and press Enter.

  • Type sed -e "s/UniFi-CloudKey/smru-ac25-mrm/" -i /etc/hostname and press Enter.

  • Type sed -e "s|US/Pacific|Asia/Bangkok|" -i /etc/timezone and press Enter.

  • Contents of the /etc/systemd/network/eth0.network file.

    [Match]
Name = eth0
[Address]
Address = 10.10.1.211/24        10.10.1.212/24
[Route]
Gateway = 10.10.1.170
[Network]
DNS = 10.10.1.170
DNS = 10.10.1.1
DNS = 127.0.0.1

4. UniFi Controller configuration

  • Connect the UniFi Cloud Key to the switch.

  • Login to the computer that in the same network with UniFi Cloud Key.

  • Browse to https://unifi.ui.com with Google Chrome.

  • Type SMRU in the Email or Username field.

  • Type the password in the Password field.

  • Type the 2FA in the 2FA Token field.

  • Click Sign in.

  • Click OFF to turn on Discover Cloud Key.

  • Add the Ubiquiti Device Discovery Tool extension to Google Chrome.

    • Click ADD TO CHROME.

    • Click Add to Chrome.

    • Click Add app.

    • Close the unwanted tabs.

  • Click UniFi CloudKey v3 | UPGRADE FIRMWARE.

  • Click UPGRADE FIRMWARE to confirm.

  • Wait about 5 mintues for the upgrade to finish and for UniFi Cloud Key v3 to show up.

  • Click ADOPT.

  • Click OPEN CONTROLLER WIZARD to confirm.

  • Click Advanced.

  • Click Proceed to <IP address> (unsafe).

  • Type SMRU-<Site> in the Controller Name field.

  • Check By selecting this you are agreeing to end user license agreement and the terms of service.

  • Click Next.

  • Type SMRU in the Username field.

  • Type the password in the Password field.

  • Click Next.

  • Type the 2FA in the 2FA Token field.

  • Click Next.

  • Enable Automatically optimize my network.

  • Enable Enable Auto Backup.

  • Click Next.

  • Optional: Select UniFi AP-AC-Lite.

  • Click Next.

  • Type <WiFi-SSID> in the WiFi Name field.

  • Type the WiFi password in the WiFi Password field.

  • Enable Combine 2 GHz and 5 GHz WiFi Network Names into one.

  • Click Next.

    Controller Name                                 SMRU-<Site>
Remote Access                                   Enabled
Use Ubiquiti account for local access           Yes
Ubiquiti Account                                SMRU
WiFi Name                                       <WiFi-SSID>

Country or territory                            Thailand
Timezone                                        (UTC+07:00) Bangkok

  • Click Finish.

  • Optional: Click Don’t Send on the Security & Analytics message.

  • Select SMRU > Logout.

  • Close the UniFi Network tab.

  • Close the CLOUD KEY SETUP popup window.

  • Close Google Chrome.

5. UniFi Cloud Key login

  • Browse to https://<IP address>[^].

  • Log in as ubnt with the default ubnt password or the password in the KeePass Password Manager.

6. UniFi Cloud Key configuration

  • Browse to https://unifi.ui.com with Google Chrome.

  • Type SMRU in Email or Username field.

  • Type the password in Password field.

  • Click Sign in.

  • Click OFF to turn on Discover Cloud Key.

  • Click MANAGE on UniFi CloudKey v3.

  • Click CONFIGURE on Configure your UniFi Cloud Key.

  • Type ubnt in Username field.

  • Type the password in Password field.

  • Click LOGIN.

  • Click Configuration.

  • Type SMRU-<Site> in Device Name field.

    BASIC SETTINGS

Device Name                                     tbhf-unf-<site>
Timezone                                        (UTC+07:00) Bangkok
Reset Button                                    ON

NETWORK SETTINGS

Configuration Mode                              ● Static        ○ DHCP
IP Address                                      192.168.xx.16
Netmask                                         255.255.255.0
Gateway                                         192.168.xx.170
Primary DNS                                     192.168.xx.170
Secondary DNS                                   8.8.8.8

  • Click APPLY CHANGES.

7. Upgrade from Debian 8 to Debian 9

  • See https://phoenixnap.com/kb/how-to-upgrade-debian-8-jessie-to-debian-9-stretch.

    # Backup.
cd /
tar -cpzf /data/backup0.tgz --one-file-system /
ls -al /data

apt-get update
apt-get upgrade
apt-get dist-upgrade

cat /etc/debian_version
cat /etc/os-release

dpkg -l | grep -i java
dpkg -l | grep -i unifi

cp -a /etc/apt/sources.list /etc/apt/sources.list.org
sed -i 's/jessie/stretch/' /etc/apt/sources.list

# The default action is to keep your current version.
# securetty
# /etc/default/rcS
# /etc/systemd/resolved.conf
# /etc/kernel/postinst.d/apt-auto-removal

# Keep the local version currently installed.
# /etc/apt/apt.conf.d/50unattended-upgrades.ucftmp
# /etc/ssh/sshd_config

# Restart services during package upgrades without asking?
# No
# cron

apt-get update
apt-get upgrade
apt-get dist-upgrade

  • Restart the UniFi Cloud Key.

root@UniFi-CloudKey:/# apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up freeradius-ldap (3.0.12+dfsg-5+deb9u1) ...
A dependency job for freeradius.service failed. See 'journalctl -xe' for details.
invoke-rc.d: initscript freeradius, action "force-reload" failed.
dpkg: error processing package freeradius-ldap (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 freeradius-ldap
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@UniFi-CloudKey:/#

8. Repurposing