Linux server setup

System settings

Update system

sudo apt update
sudo apt upgrade
do-release-upgrade

reboot

hostname

vim /etc/hostname

user

adduser ubuntu
usermod -aG sudo ubuntu

ssh config

ssh-copy-id -p 50000 ubuntu@12.98.23.12

# vim /etc/ssh/sshd_config
PermitRootLogin no
PasswordAuthentication no
PubkeyAuthentication yes

service ssh restart
ssh -p 50000 ubuntu@12.98.23.12

ufw

sudo ufw enable
sudo ufw allow 80
sudo ufw allow 443
sudo ufw allow 50000
sudo ufw status numbered

V2ray

V2Ray global proxy

Web server

Ngnix

$ sudo apt install nginx
$ sudo systemctl status nginx

Certbot

Install via pip

sudo apt install certbot
sudo apt install python3 python3-dev python3-venv libaugeas-dev gcc
sudo python3 -m venv /opt/certbot/
sudo /opt/certbot/bin/pip install --upgrade pip
sudo /opt/certbot/bin/pip install certbot certbot-nginx
sudo ln -s /opt/certbot/bin/certbot /usr/bin/certbot
sudo certbot --nginx
sudo nginx -s reload