Linux

Step 1 : Install pptp client.

sudo apt-get -y install pptp-linux

Step 2 : Setup PPTP Client

Add secret:

File : /etc/ppp/chap-secrets
You can use:
sudo nano /etc/ppp/chap-secrets

rsync is a powerfull tool to synchronize the files and directories. Can be use for local or remote using ssh.

Source Tutorial : https://www.thegeekstuff.com/2010/09/rsync-command-examples/

Syntax
rsync options source destination

Mount a linux partition encrypted with LUKS using terminal

Install Crypsetup:

sudo apt-get install cryptsetup

To decrypt the volume:

sudo cryptsetup luksOpen /dev/sda1 my_encrypted_volume

/etc/rc.local is depricated on debian 9.

You can try this to add it. (Not tested)

1) Create the file : /etc/systemd/system/rc-local.service

# nano /etc/systemd/system/rc-local.service

2) Copy this text.

Access to a SAMBA file share from a file explorer

Juste enter the address of your share like:
smb://<IP or HOST>/<Folder>
Example:
smb://192.168.0.1/DATA
smb://192.168.0.1/

The official tutorial is hear : https://about.gitlab.com/installation/#debian?version=ce
CE or EE : https://about.gitlab.com/installation/ce-or-ee/?distro=debian

Setup PPTP Server

First we need to install pptp server using apt-get

# sudo apt-get install pptpd

Then we need to configure the pptpd.

# sudo nano /etc/pptpd.conf

1. Install java

Install Java 8 on Ubuntu
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

Verify Java Inatallation
sudo apt-get install oracle-java8-set-default
java -version

Webmin and Virtualmin Change IP access control from shell terminal.

Edit file: /etc/webmin/miniserv.conf
vim /etc/webmin/miniserv.conf

Change:
allow=OLD_IP to New IP
Example:
allow=123.214.123.123 85.25.65.45 45.65.85.36

Drush allow to download and install drupal core, drupal modules and drupal themes.
Note : It is recommended to use composer to manage drupal 8, modules and themes.