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

or better:

Ubuntu updates via command line

Update:

Clean up the system from old packages:

Check the Ubuntu version:

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

How to install Mono on Ubuntu