Welcome to Rob Groen's website

The Internet Jigsaw

Internet and internet systems are like one big jigsaw. Every piece has to be on the right place. If just one piece isn't right than you won't get the result you hoped for.

E-commerce specialist

I am a E-commerce specialist and can help you with many questions about this fantastic way of selling you products or services. In the late '90 I started a web shop for selling white-goods over the Internet on the Dutch marked. I was the first one who did that and there was no software like Drupal of OS-Commerce. I had to invent it all by myself. It was a great time!.
The shop was very successful and some day a big company made me an offer that I couldn't refuse. So I sold my e-commerce business.

Now I use my knowledge to advice and help other e-commerce companies to get better, grow and make more profit. My strength is the combination between technique and commerce.

Linux specialist

I am a Linux specialist and work with Linux since 1997. I am using mainly Debian based distributions like Debian and Ubuntu.
Please let me help you to find the pieces you need and how to stuck them together.Visit my Linux Tips & Trick page to see some helpful solutions.

Scheveningen Luxemburg Scheveningen

Classic SLS Rally

Since 1995 I drive with the technical service and repair group in the Classic SLS Rally. this Rally is for old car dated before 1975 and they drive from Scheveningen, a famous city on the west coast from The Netherlands, to downtown Luxembourg city and back again.

The rally includes 2 nightly stays in Belgium.

SLS Rally Medaille

Portfolio overview

A overview with some of my website projects. I prefer building websites in Drupal, Joomla and OS-Commerce.


Cerestial Invest

www.cerestialinvest.com_.jpg

Cerestialinvest is een bedrijf dat investeert en belegd in landbouwgrond in Oost-Europa. Kleine percelen landbouwgrond worden opgekocht om tot één grote akker te worden gevormd waarna de grond wordt verpacht aan Nederlandse boeren.

Landbouwgrond in Roemenië is goedkoop, echter het zijn veelal bijzonder kleine percelen in bezit van mensen die veelal niet eens weten dat ze het in bezit hebben.

Legal Account Office

Legal Account Office

Legal Account is een juristenkantoor met zaken door het hele land. Om altijd over de meest up-to-date documenten te kunnen beschikken tijdens zittingen en klantbezoek ontstond de wens om overal in Nederland (ter wereld) via een iPad of andere tablet contact te kunnen maken het hun elektronisch archief.

Opdracht

MPV.nl

MVP.nl

Management Personen Vervoer (MPV) is a national consultancy company specialized in the taxi and other personal transportation marked.

The Challenge
Build a informative website with a high quality design that reflects our professional business.

These items must be highlighted

  • Procurement projects
  • Advice
  • Mediation

Legal Justitia

Screenshot_LegalJustitia.jpg

A website for a company that collects money from people that didn't pay there bill.

The client wishes a website with a hight end classic business design a the possibility to update the content by there selfs.

The website has the following functions:

  • Selt updating and changing content by Drupal CMS.
  • Category for News-items.

Nieuw Elan

Screenshot Nieuw Elan

This is a website for a local political party "Niew Elan" in Alphen a/d Rijn in the Netherlands. The site has the following functions.

  • Automatic changing header image.
  • Multiply categories for: News, People, Blogs, Photos, Pages and in the Media.
  • Dynamic presentation of new items on homepage,
  • RSS news-feeds
  • Search index on complete website.

Latest Tips & Tricks

My latests solutions for Linux software problems.
(English Only)

How-To add SMTP support in Zpanel on Ubuntu 12.04

The default installation of ZPanel does not add STMP support on the default installation. Why? I don't know yet. (no time to investigate).

To add SMTP support (port 587) in Zpanel uner Ubutu 12.04 LTS follow these steps in the console (command line).

vi /etc/postfix/master.cf

Find this line

smtp      inet  n       -       n       -       -       smtpd

Alter panel in Gnome Classis

In the previous version of Gnome, in the time before Unity, you could alter the icons on the gnome panel by clicking [Alt]+[Right mouse button].
In Ubuntu 12.4 LTS with Gnome Classic Desktop environment this doesn't work anymore.

Now press [alt]+[super(windows button)]+[Right mouse button].

Bad scroll funtionality in Firefox 15+

In Firefox version 15 the function SlowScroll was introduced. Depending on your hardware an OS it's possible that vertical scrolling is stepwise and choppy. If you recognize this issue you can simple make scrolling much better by adjusting mousewheel.min_line_scroll_amount in aubout.config.

Type aubout.config in the addresses bar of your browser.

How-to solve black screen on iMac with ATI Radeon HD 5700 video chipset and Ubuntu 12.04.3 LTS

After an Kernel update my alu iMac 27" running Ubuntu 12.04.3 LTS boots with a total black screen. Even the backlight from the video panel is off.

To solve this login in over ssh an edit the file /etc/default/grub

sudo vi /etc/default/grub

Find the line that start with GRUB_CMDLINE_LINUX_DEFAULT= and edit is to:

Backup MySQL Vtiger Database and compress it with zip

Here is a one-liner to backup your VTiger database, give it a timestamp and zip it.

export TMPDATE=$(date +%Y%m%d-%H%M); mysqldump -p vtigercrm50 > $TMPDATE"_vtigercrm50.sql" ; zip $TMPDATE"_vtigercrm50.sql.zip" $TMPDATE"_vtigercrm50.sql" ; rm $TMPDATE"_vtigercrm50.sql"

Some explanation:

vtigercrm50 = YOUR V-TIGER DATABASE NAME


Fotografie

Fotografie is al sinds mijn jeugd een hobby. In de jaren '70 fotografeerde ik met een 2-hands grootbeeld spiegelreflex camera. Echt een oudje en ondanks zijn leeftijd een prima camera. Dat was in die tijd normaal dat je naast je camera ook een aparte, losse belichtingsmeter bij je had. Immers met de camera kon je niets ander dan scherpstellen, de sluitertijd en het diafragma instellen.

Nikon-D90.jpg