Create README.md

iniital ubuntu server setup/README.md

@@ -0,0 +1,80 @@
+# Introduction
+Let's say you don't know how to start with Do The Evo's CaddyV2 Guide here: https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/caddy_v2
+
+Start with this guide. Then follow his caddy_v2 guide. Then you can try hosting wordpress, seafile, or his other guides such as nextcloud and etc.
+
+#### Updating initial server
+sudo apt update
+sudo apt upgrade
+
+#### Initial server setup
+https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-20-04
+
+```
+adduser sammy
+usermod -aG sudo sammy
+```
+
+Logout.
+Login as sammy.
+
+Setting up uncomplicated firewall.
+```
+sudo apt install ufw
+sudo ufw allow OpenSSH
+sudo ufw allow 443
+sudo ufw allow 80
+sudo ufw enable
+```
+
+#### Optional... Hardening Server
+Add public ssh key
+```
+mkdir .ssh
+cd .ssh 
+nano authorized_keys
+```
+
+Disable Root Login
+```
+sudo sed --in-place 's/^PermitRootLogin.*/PermitRootLogin prohibit-password/g' /etc/ssh/sshd_config
+sudo sed --in-place 's/#PasswordAuthentication yes/PasswordAuthentication no/' /etc/ssh/sshd_config
+```
+
+Passwordless Sudo
+```
+echo "${USERNAME} ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
+```
+
+#### Installing Docker
+https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-20-04
+
+```
+sudo apt update
+sudo apt install apt-transport-https ca-certificates curl software-properties-common
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"
+sudo apt update
+apt-cache policy docker-ce
+sudo apt install docker-ce
+sudo systemctl status docker
+sudo usermod -aG docker ${USER}
+```
+logout sammy. relogin.
+
+```
+id -nG
+```
+should return: sammy sudo docker
+
+#### Installing Docker-Compose
+https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-compose-on-ubuntu-20-04
+
+
+```
+sudo curl -L "https://github.com/docker/compose/releases/download/1.26.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+
+sudo chmod +x /usr/local/bin/docker-compose
+
+docker-compose --version
+```