Preparing new vps from scratch

clean up

remove snap

sudo apt-get autoremove --purge snapd gnome-software-plugin-snap && sudo apt-mark hold snapd

update the thing to current

apt-get update && apt-get upgrade

fallocate -l 2G /swapfile && chmod 600 /swapfile

mkswap /swapfile && swapon /swapfile

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

sysctl vm.swappiness=10
sysctl vm.vfs_cache_pressure=50

nano /etc/sysctl.conf
vm.swappiness=10
vm.vfs_cache_pressure=50

install the most basic of basics

apt install -y curl htop fail2ban docker.io net-tools make docker-compose

install portainer

install zerotier

curl -s https://install.zerotier.com | sudo bash

add machine to overlay network

export INTERFACE=YOUR_ZEROTIER_NETWORK_ID
zerotier join $INTERFACE

allow traffic from all zerotier network devices

export INTERFACE=YOUR_ZEROTIER_NETWORK_ID
ufw allow in on $INTERFACE

create mr user

adduser koad

make new user sudo

usermod -aG sudo koad

add user to docker group

sudo groupadd docker
sudo usermod -aG docker koad

remove regular internet firewall rules, deny all

ufw status numbered

ufw delete [NUMBER]