Check log file for interactive SSH logins

# failed attempt
grep sshd.\*Failed /var/log/auth.log | less

# successful attempts
grep sshd.\*Accepted /var/log/auth.log | less

How To Install Linux, Apache, MySQL, PHP (LAMP) stack on Ubuntu 16.04

https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-16-04

Installing VMware Tools in an Ubuntu virtual machine

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1022525

or better:

https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2073803

sudo apt install open-vm-tools

sudo apt install open-vm-tools-desktop

Ubuntu updates via command line

Update:

sudo apt-get update        # Fetches the list of available updates
sudo apt-get upgrade       # Strictly upgrades the current packages
sudo apt-get dist-upgrade  # Installs updates (new ones)

Clean up the system from old packages:

sudo apt-get update && sudo apt-get autoclean && sudo apt-get clean && sudo apt-get autoremove

Check the Ubuntu version:

lsb_release -a

Force Apt-Get to IPv4 or IPv6 on Ubuntu or Debian

You can force IPv4 with:

apt-get -o Acquire::ForceIPv4=true update

or IPv6:

apt-get -o Acquire::ForceIPv6=true update

To make this persistent,check this post out:

https://www.vultr.com/docs/force-apt-get-to-ipv4-or-ipv6-on-ubuntu-or-debian

XRDP – How to install XRDP on Ubuntu 16.04 – Easy Way

Check here:

XRDP – How to install XRDP on Ubuntu 16.04 – Easy Way

sudo apt-get install xrdp

sudo apt-get update

sudo apt-get install mate-core mate-desktop-environment mate-notification-daemon

sudo sed -i.bak '/fi/a #xrdp multiple users configuration \n mate-session \n' /etc/xrdp/startwm.sh

sudo ufw allow 3389/tcp

How to install Mono on Ubuntu

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF

echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list

sudo apt-get update

sudo apt-get install mono-runtime