Do you know that you really don't need Microsoft Visio? Here, is how I setup LibreOffice Draw tool and drew up a simple network diagram.

libreoffice1

1) Download and install LibreOffice:

download link: http://www.libreoffice.org/download/download

2) Download network topology icons from Cisco website:

download link: https://www.cisco.com/c/en/us/about/brand-center/network-topology-icons.html

- note: download ONLY the JPG file, and extract the contents into a folder of your choice.

3) Launch

I want to connect to my Ubuntu server which I just added a Desktop to. This is the server. I want to access this server from a Windows-7 desktop and a Debian desktop. In this tutorial, I'll install XRDP on the server for remote desktop purposes.

Ubuntu Desktop 16.04 has Unity desktop as a default, however XRDP and Unity desktop (or Gnome 3) have interconnecting issues, so the practice is often to install "another desktop" which works, has less issues and more workarounds. For this tutorial

This might be specific only to me, but I kinda observe, and faster to install Ubuntu server and add a GUI lateron, that wait for Ubuntu-Desktop edition to fully install.

While installing Ubuntu Server, I just add OpenSSH Server to enable me connect to the server from another PC.

intsall ubuntu desktop gui ubuntu server

Login to Ubuntu Server, sudo into root and do the following:

1) Update the installation

command: apt-get update

2) command: tasksel

- scroll down and select Ubuntu desktop

intsall ubuntu desktop gui ubuntu server-2

while installation is going on, my screen

This tutorial details how to upgrade a Joomla 2.5-site to Joomla 3.

Joomla Upgrade Preparation:

1) Backup your site: preferrably with Akeeba. Download the backup file onto your local computer. Dont forget to backup your database as well.

Akeeba was not installed on the site I was working on, so I had to find a Joomla 2.5 compatible Akeeba version. Here are some links

  • All Releases - Akeeba Backup for Joomla: click here
  • I found Akeeba v4.0.4 compatible with Joomla2.5: click here

2) Uninstall all

Here is the method I found most effective in setting my computer time permanently.

As root, or via sudo:

command: sudo dpkg-reconfigure tzdata

Choose your geographic area, and click ok;

debian8-set-yout-time1

Choose your timezone, and click ok;

debian8-set-yout-time2

Your current time:

debian8-set-yout-time3

restart CRON:
$ service cron stop && service cron start

enjoy!!!

Problem: nslookup command not found on Debian stretch

Solution: apt-get install dnsutils

Install remote desktop client in Debian stretch

Solution: apt-get install vinagre

Install Chromium Browser in Debian Stretch:

First update the Debian install: apt-get update

as root/sudo: sudo apt-get install chromium chromium-l10n

Install VirtualBox with Gdebi in Debian:

First we update the Debian installation: apt-get update

Gdebi is a simple tool that I prefer to use in installing .deb files. With Gdebi installed, all you have to do is right-click on the deb file and install the file.

1) Install Gdebi: apt-get install gdebi

2) Download VirtualBox from Virtualbox website: https://www.virtualbox.org/wiki/Linux_Downloads

virtual-box-install

3) Install VirtualBox with GDebi: (right click on .deb file and "Open with GDebi Package

In this tutorial, I will detail how to setup an Ubuntu server as a NAT router.

The server has 2-network interfaces: enp0s3 (WAN) and enp0s8(LAN). NAT is enabled on the WAN-NIC. A DHCP-Server is installed and it leases IP-addresses to clients over server's enp0s8 interface.

ubuntu-server-natrouter

SERVER SPECS

root@ubuntu-DHC-SVR-RTR:/home/tokunbo# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial

Lets go............

1) CONFIGURE NETWORK