Collection of BASH scripts for Odroid C2 which will -

1. Harden Ubuntu

2. Install scripts to setup specific softwares

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Initial Setup

1. SSH to odroid-ip:22 (Default username and password - odroid)

2. Change odroid password from default

passwd odroid

3. Change root user password from default

sudo bash && passwd

3. Update C2

sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade

4. Change default SSH port and disable root login

## Lockdown - changing default ports
sudo nano /etc/ssh/sshd_config
## Disable root login
PermitRootLogin no
## Change default SSH port to any random port (eg. 2230)
Port 2230
## Lockdown - Firewall 
sudo ufw limit ssh/tcp
sudo ufw allow 2230/tcp
sudo systemctl reload sshd

5. Enable firewall

# Allow Incoming SSH from Specific IP Address or Subnet
sudo ufw allow from 192.168.0.0/16  to any port 2230
sudo ufw limit 2230/tcp comment 'SSH port'
sudo ufw enable && sudo ufw status