Notes:
Basics
- sudo apt update && sudo apt upgrade -y
- sudo apt install fail2ban
- sudo apt install zip unzip
- sudo apt autoremove
- sudo touch /etc/cloud/cloud-init.disabled
sudo apt purge cloud-init -y
sudo rm -Rf /etc/cloud - sudo adduser "newusername"
- sudo usermod -aG sudo "newusername"
- sudo deluser --remove-home "username"
- sudo nano /etc/netplan/*.yaml
- sudo hostnamectl set-hostname "new hostname"
- sudo nano /etc/hosts
- tail tail -f /var/log/sysl
Remove PG 15 prior to re-install ( if required )
- dpkg -l | grep postgres
- sudo apt --purge remove postgresql postgresql-15 postgresql-client-15 postgresql-client-common postgresql-common postgresql-contrib
remove directories when purged Y/n = Y - dpkg -l | grep postgres ( verify pg has been removed )
- sudo rm -rf /var/lib/postgresql/
- sudo rm -rf /var/log/postgresql/
- sudo rm -rf /etc/postgresql/
- sudo deluser postgres
- sudo apt autoremove