Mike Ennulat

Welcome on my personal website

I would like to introduce myself, where I am coming from and where I am heading to. Not sure, If there is a plan to follow anyway ;-). But every day gives some new options, we just have to find and open the doors. Currently I am trying to open a new business with a sailing boat. I keep you informed.

You are going to find information about:

  • my professional skills and career
  • some private details
  • ideas and help for personal computers and servers
  • some interesting things I found in the internet
  • some funny stories about things I experienced during my work

I hope you are going to have some fun on this site. Have questions or suggestions? Feel free to contact me on

Thanks for reading!

Scuba diving has been an exciting adventure for me for years. But everything had to start somehow. I was not exactly born as a diving instructor.

You might discover the following error on Apache webserver:

413 Request Entity Too Large

There are several causes for this type of error.

It is not very annoying for a visitor of your site, but a lot of crawlers are loorking for the meta key: 

<meta name="generator" content="Joomla! - Open Source Content Management" />

Unfortunately some bad guys looking for Joomla websites to take advantage of any possible security vulnerabilities.


During my work with personal computers and servers I experienced a lot of problems. So, whenever I have a problem I try to add the solution here. Due to the mass of problems, I am sure the list is going to grow fast 😏.

Thanks to all the other guys in the www helping also with solutions to the different kind of problems.

Tricks & hints for creating and fixing Joomla sites.

Some tricks and tips to fix issues on your server.

Find tips and tricks about android.

Diving schools and instructors generally offer diving training according to proven and globally recognized training standards. Which training is the best? Very idle to speculate. Every training has its advantages and disadvantages, a good training is more dependent on a good diving instructor and good environmental conditions. Not everyone enjoys learning to dive in cold water and with poor visibility. On the other hand, you might want to get to know the theory better and not experience it on a fast vacation course. Basically there are the following training levels, which are also recognized among each other. Below the table you find a list with all courses I teach.

Discover Scuba Diving Try Dive Discover Scuba Diving Try Scuba Try Dive  
Pool Diver  --  --  --  --  
Scuba Diver Basic Diver Scuba Diver Passport Diver / Scuba Diver Elementary Diver / -- Supervised Diver
Open Water Diver CMAS* Open Water Diver Open Water Diver Open Water Diver / Ocean Diver Autonomous Diver
Advanced Adventurer CMAS* + 2 Specialties Advanced Open Water Diver Advanced Adventurer  -- No ISO / EUF Standards
Advanced Open Water Diver CMAS** -- Advanced Open Water Diver --
AOWD + Specialty Stress & Rescue CMAS** + Specialty Stress & Rescue Rescue Diver Diver Stress & Rescue Sport Diver / Club Diver
Master Diver  -- Master DIver Master Diver  --
Dive Leader CMAS*** Dive Master Dive Guide Dive Leader / Dive Leader Dive Leader

This list cannot always be transferred 1: 1. Some courses partially overlap. Depending on which direction you are looking from, this table would look different. Thus, the table can only be a rough guideline. Of course, there are a large number of other associations such as VDST, Protec, Naui, IDA, IDEA. However, they all differ only insignificantly and are based on the training scheme either at the RSTC or the CMAS training track and are usually also a member there, e.g. IAC is a member of the RSTC and CMAS, the BSAC is part of the CMAS and PADI and SSI are pure RSTC members. But no matter what certificate a diver has, there is unfortunately no information about how good or how bad the respective diver is.

This category lists articles about PADI training opportunities. I am teaching all levels of Scuba Diving inlcuding the PADI Assistant Instructor. If you like to do a course (private or small class) with me, check for prices and schedule .

In this category you are going to find descriptions of the Scuba Schools International SSI program. Keep in mind, this is only the standard program. You may do more certifications in other areas of Scuba Diving as well. If you like to do a course (private or in small classes), do not hesitate to contact me:

In this category you are going to find stories and some details of my life.

(c)2020 - 2021 by Mike Ennulat