adduser ayoub
usermod -aG sudo ayoub
passwd ayoub

ssh ayoub@YOUR_IP
ssh ayoub@YOUR_IP -p 2222

cat /etc/passwd | grep ayoub
cut -d: -f1 /etc/passwd | sort
id ayoub

su - ayoub
sudo -i
whoami

sudo nano /etc/ssh/sshd_config

Port 2222
PermitRootLogin no
PasswordAuthentication yes
MaxAuthTries 3

sudo systemctl restart ssh
ssh ayoub@YOUR_IP -p 2222

ssh-keygen -t ed25519 -C "ayoub"
ssh-copy-id -p 2222 ayoub@YOUR_IP

sudo ufw allow 2222/tcp
sudo ufw allow OpenSSH
sudo ufw enable
sudo ufw status

sudo ufw allow 80/tcp
sudo ufw allow 443/tcp
sudo ufw allow 'Nginx Full'

sudo ufw status numbered
sudo ufw delete allow 22/tcp
sudo ufw reload
sudo ufw reset

mkdir my_project
mkdir -p project/src/components
touch file.txt
echo "text" > file.txt

mv old_name.txt new_name.txt
mv folder /new/path/folder
cp file.txt backup.txt
cp -r folder folder_backup

rm file.txt
rm -i file.txt
rmdir folder
rm -rf folder

ls -la
pwd
find . -name "*.txt"
cat file.txt
less file.txt

chmod +x script.sh
chmod 755 folder
chown ayoub:ayoub file.txt
chown -R ayoub:ayoub /var/www

sudo apt install nginx -y
sudo systemctl start nginx
sudo systemctl enable nginx
sudo systemctl status nginx

sudo nano /etc/nginx/sites-available/mysite
sudo ln -s /etc/nginx/sites-available/mysite /etc/nginx/sites-enabled/
sudo nginx -t
sudo systemctl reload nginx

sudo apt install certbot python3-certbot-nginx -y
sudo certbot --nginx -d example.com
sudo certbot renew --dry-run

curl -fsSL https://get.docker.com | sh
sudo usermod -aG docker ayoub
newgrp docker

docker ps -a
docker images
docker pull ubuntu
docker run -d -p 80:80 nginx
docker stop CONTAINER_ID
docker rm CONTAINER_ID

docker compose up -d
docker compose down
docker compose logs -f
docker compose ps

npm install -g pm2
pm2 start app.js --name myapp
pm2 start npm -- start
pm2 save
pm2 startup

pm2 list
pm2 logs myapp
pm2 restart myapp
pm2 stop myapp
pm2 delete myapp
pm2 monit

git config --global user.name "ayoub"
git config --global user.email "your@email.com"
git init
git clone https://github.com/repo.git

git status
git add .
git commit -m "update"
git push origin main
git pull origin main

git branch
git checkout -b feature/new
git merge feature/new
git branch -d feature/new

sudo apt update && sudo apt upgrade -y
sudo apt autoremove -y
sudo apt autoclean

df -h
free -h
top
htop
uptime
lscpu

journalctl -xe
sudo tail -f /var/log/syslog
sudo tail -f /var/log/nginx/error.log
sudo tail -f /var/log/auth.log