apt-get update && apt-get upgrade
apt-get install libpcre3 libpcre3-dev libssl-dev openssl zlib1g-dev
apt-get install build-essential
apt-get install unzip

OPTIONAL apt-get install nano htop

apt-get install unzip
wget http://nginx.org/download/nginx-1.21.0.tar.gz
//wget https://github.com/sergey-dryabzhinsky/nginx-rtmp-module/archive/dev.zip
wget https://github.com/winshining/nginx-http-flv-module/archive/v1.2.9.zip
wget https://github.com/aperezdc/ngx-fancyindex/archive/v0.5.1.zip
tar -zxvf nginx-1.21.0.tar.gz
//unzip dev.zip
unzip v1.2.9.zip
unzip v0.5.1.zip

cd nginx-1.21.0

./configure --sbin-path=/usr/sbin --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --pid-path=/var/run/nginx.pid --lock-path=/var/lock/nginx.lock --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/body --http-proxy-temp-path=/var/lib/nginx/proxy --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --with-http_addition_module --with-http_stub_status_module --with-http_flv_module --with-http_mp4_module --with-http_ssl_module --with-http_sub_module --with-http_dav_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_realip_module --with-mail --with-mail_ssl_module --with-http_v2_module --with-file-aio --with-debug --add-module=../nginx-http-flv-module-1.2.9 --add-module=../ngx-fancyindex-0.5.1

make 
make install

systemctl stop apache2
systemctl disable apache2
systemctl enable nginx

nano /etc/init.d/nginx
FILE-CONTENT:
#! /bin/sh
 
### BEGIN INIT INFO
# Provides:          nginx
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the nginx web server
# Description:       starts nginx using start-stop-daemon
### END INIT INFO
 
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/nginx
NAME=nginx
DESC=nginx
 
test -x $DAEMON || exit 0
 
# Include nginx defaults if available
if [ -f /etc/default/nginx ] ; then
        . /etc/default/nginx
fi
 
set -e
 
. /lib/lsb/init-functions
 
test_nginx_config() {
  if nginx -t $DAEMON_OPTS
  then
    return 0
  else
    return $?
  fi
}
 
case "$1" in
  start)
        echo -n "Starting $DESC: "
        test_nginx_config
        start-stop-daemon --start --quiet --pidfile /var/run/$NAME.pid \
                --exec $DAEMON -- $DAEMON_OPTS || true
        echo "$NAME."
        ;;
  stop)
        echo -n "Stopping $DESC: "
        start-stop-daemon --stop --quiet --pidfile /var/run/$NAME.pid \
                --exec $DAEMON || true
        echo "$NAME."
        ;;
  restart|force-reload)
        echo -n "Restarting $DESC: "
        start-stop-daemon --stop --quiet --pidfile \
                /var/run/$NAME.pid --exec $DAEMON || true
        sleep 1
        test_nginx_config
        start-stop-daemon --start --quiet --pidfile \
                /var/run/$NAME.pid --exec $DAEMON -- $DAEMON_OPTS || true
        echo "$NAME."
        ;;
  reload)
        echo -n "Reloading $DESC configuration: "
        test_nginx_config
        start-stop-daemon --stop --signal HUP --quiet --pidfile /var/run/$NAME.pid \
            --exec $DAEMON || true
        echo "$NAME."
        ;;
  configtest)
        echo -n "Testing $DESC configuration: "
        if test_nginx_config
        then
          echo "$NAME."
        else
          exit $?
        fi
        ;;
  status)
        status_of_proc -p /var/run/$NAME.pid "$DAEMON" nginx && exit 0 || exit $?
        ;;
  *)
        echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest}" >&2
        exit 1
        ;;
esac
 
exit 0
FILE-END!

chmod +x /etc/init.d/nginx
mkdir /var/lib/nginx/
mkdir /var/lib/nginx/body

REBOOT

/etc/init.d/nginx start
update-rc.d nginx defaults

OPTIONAL: apt-get install software-properties-common python-software-properties


add-apt-repository ppa:ondrej/php
apt-get update
apt-get install php7.4-fpm php7.4-curl php-pear php7.4-gd php7.4-mbstring php7.4-mysql php7.4-xml php7.4-soap dbconfig-common wwwconfig-common

nano /etc/php/7.4/fpm/pool.d/www.conf
FIND-AND-REPLACE: "listen = /run/php*-fpm.sock" ersetzen mit "listen = 127.0.0.1:9000"

nano /etc/php/7.4/fpm/php.ini
FIND-AND-REPLACE:
upload_max_filesize = XXX
post_max_size = XXX	

OPTIONAL: chmod go+rw /var/run/php/php7.4-fpm.sock

service php7.4-fpm restart

OPTIONAL: add to nginx.conf or /sites-available/your.conf
FILE-ADD:
	auth_basic "Restricted"; # Ausgabemeldung bei Zugriff
	auth_basic_user_file /etc/nginx/.htpasswd; # Pfad zur PW Datei
FILE-END

PW-DATEO UND NUTZER ERSTELLEN
htpasswd -c /etc/nginx/.htpasswd YOUR-USER

WEITERER NUTZER
htpasswd /etc/nginx/.htpasswd another_user