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+# Install System Tools
+
+## System Tools
+
+**install and configure git with your name:**
+
+```bash
+sudo apt install git
+git config --global user.name "John Doe"
+git config --global user.email john.doe@example.com
+git config --list --show-origin
+```
+
+**other useful tools: unzip is needed vor composer tool:**
+
+`sudo apt install curl unzip nano wget`
+
+## Installation Nginx WebServer
+
+`sudo apt install nginx`
+
+**response:**\
+The following additional packages will be installed:\
+  libnginx-mod-http-image-filter libnginx-mod-http-xslt-filter libnginx-mod-mail libnginx-mod-stream nginx-common
+  nginx-core\
+Suggested packages:\
+  fcgiwrap nginx-doc ssl-cert\
+The following NEW packages will be installed:\
+  libnginx-mod-http-image-filter libnginx-mod-http-xslt-filter libnginx-mod-mail libnginx-mod-stream nginx
+  nginx-common nginx-core\
+0 upgraded, 7 newly installed, 0 to remove and 10 not upgraded.
+
+We are going to use the systemctl command as follows to enable the nginx.service:\
+`$ sudo systemctl is-enabled nginx.service`
+
+If nginx.service not enabled, enable it, run:\
+`$ sudo systemctl enable nginx.service`
+
+## Installation PHP 7.4
+
+**Import the ondrej/php repository by running the following command:**\
+`sudo add-apt-repository ppa:ondrej/php`
+
+**install php libraries:**\
+`sudo apt install php7.4-cli php7.4-common php7.4-fpm  php7.4-curl php7.4-gd php7.4-json php7.4-mbstring php7.4-opcache php7.4-readline php7.4-xml php7.4-xsl php7.4-pgsql`
+
+**response**\
+The following additional packages will be installed:\
+  libgd3 libjbig0 libjpeg-turbo8 libjpeg8 libonig5 libpq5 libtiff5 libwebp6 php-common\
+Suggested packages:\
+  libgd-tools php-pear\
+The following NEW packages will be installed:\
+  libgd3 libjbig0 libjpeg-turbo8 libjpeg8 libonig5 libpq5 libtiff5 libwebp6 php-common php7.4-cli php7.4-common
+  php7.4-curl php7.4-fpm php7.4-gd php7.4-json php7.4-mbstring php7.4-opcache php7.4-pgsql php7.4-readline php7.4-xml php7.4-xsl\
+0 upgraded, 21 newly installed, 0 to remove and 0 not upgraded.
+
+After installing PHP 7.4, run the commands below to open PHP default config file for Nginx...
+
+**php settings for nginx:**
+
++ Open configuration file:\
+`sudo nano /etc/php/7.4/fpm/php.ini`
++ Update the configuration file with these and save…
+
+```bash
+file_uploads = On
+allow_url_fopen = On
+memory_limit = 128M //= default
+cgi.fix_pathinfo = 0 //default = 1
+upload_max_filesize = 100M //default = 2M
+post_max_size = 100M //default = 8M
+date.timezone = Europe/Vienna
+```
+
+save the file and start process manager for php:\
+`sudo service php7.4-fpm start`
+
+Everytime you make changes to PHP configuration file, you should also restart nginx web server and PHP script… To do so, run the commands below:\
+`sudo service nginx reload`\
+`sudo service php7.4-fpm restart`
+
+## Installation Composer
+
+Download setup file:\
+`cd ~`\
+`curl -sS https://getcomposer.org/installer -o composer-setup.php`
+
+You can use curl to get the latest signature and save it in a shell variable:\
+`HASH='curl -sS https://composer.github.io/installer.sig'`
+
+Now run the following PHP code to check if the installation script can be executed safely:\
+`php -r "if (hash_file('SHA384', 'composer-setup.php') === '$HASH') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"`
+
+If the installer is verfied, run the setup script:\
+`sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer`
+
+Test your installation:\
+`composer --version`
+
+## Installation Java
+
++ Import the official AdoptOpenJDK GPG key by running the following command:\
+`wget -qO - https://adoptopenjdk.jfrog.io/adoptopenjdk/api/gpg/key/public | sudo apt-key add -`
+
++ Import the AdoptOpenJDK DEB repository by running the following command:\
+`sudo add-apt-repository --yes https://adoptopenjdk.jfrog.io/adoptopenjdk/deb/`
+
++ Refresh your package list with apt-get-update and then install your chosen AdoptOpenJDK package. For example, to install OpenJDK 8 with the HotSpot VM, run:\
+`sudo apt update`\
+`sudo apt install adoptopenjdk-8-hotspot`
+
++ Set adoptopjdk as default java version:\
+`sudo update-alternatives --config java`
+
++ test java installation:\
+`java -version`
+
+## Installation certbot for https-certificate
+
++ add cerbot repository:\
+`sudo add-apt-repository ppa:certbot/certbot`\
+`sudo apt update`
++ install cerbot:\
+`sudo apt install certbot`
++ response:\
+The following NEW packages will be installed:\
+  certbot python3-acme python3-certbot python3-configargparse\
+  python3-configobj python3-future python3-icu python3-josepy python3-mock\
+  python3-ndg-httpsclient python3-parsedatetime python3-pbr\
+  python3-requests-toolbelt python3-rfc3339 python3-tz python3-zope.component\
+  python3-zope.event python3-zope.hookable python3-zope.interface\
+0 upgraded, 19 newly installed, 0 to remove and 0 not upgraded.