Server

When you request a let's encrypt wildcard certificate with virtualmin you may have an error like this:

Install Apache 2 server

sudo apt install apache2

Install MySQL Server

sudo apt install mysql-server

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

/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.

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

SCP - Secure copy

Download a file via SCP
File :        /tmp/mysql.dump.sql
Server/Login :    THE_USERNAME:PASSWORD@domain.com
Download to :     . (Current directory)
scp user:pass@domain.com:/tmp/mysql.dump.sql .

The apache benchmark tool is very basic, and while it will give you a solid idea of some performance.

Some parameters: