The price list of Kielburger IT-Consulting is updated at regular intervals and is based on the actual costs of the services provided as well as the market price level in the region. This calculation is carried out in close collaboration with our tax office to ensure transparency, fairness, and consistency.

This price list and service description is valid from 01/01/2026. Deviations possible.

Acceptance of orders only after prior discussion. This price list is not a blanket service commitment. When commissioning or concluding contracts with external service providers or third parties, additional costs may arise, which are not explicitly listed here.

Surcharges on Sundays and public holidays / night surcharge
For human-provided services on Sundays and public holidays, as well as on all days of the week between 9 pm and 8 am, a general surcharge of 50% will be charged on the service.

Material prices, individual services, and external services
Prices for materials cannot be listed here due to given fluctuations and are to be requested individually. Individual services are billed according to individually agreed conditions. Services from third-party providers are billed according to their individual pricing.

Explanation of arrival
The distance is calculated from the individual starting point onwards. Generally, this is the company headquarters. If multiple services are provided for the same customer at multiple locations on the same day, the distance between the service locations can be used to calculate the arrival distance from the second service onwards.

Payment terms
If the statutory or agreed payment period is exceeded, a reminder fee of 6 EUR per extrajudicial reminder will be charged.

*Non-appearance at appointments: If a personal appointment is scheduled and the customer does not show up without canceling at least 24 hours in advance, the listed flat rate plus other opportunity costs (e.g., arrival) will be charged. The technician will wait for the customer for 20 minutes after arrival.

LibreOffice offers various applications such as Writer for word processing, Calc for spreadsheets, Impress for presentations, and Draw for creating graphics. A notable feature of LibreOffice Draw is the ability to edit PDF files.

The software is available across platforms and can be operated on Windows, macOS, and Linux. LibreOffice provides many advantages, including free usage, compatibility with various file formats, and regular updates by the community. Compared to commercial software like Microsoft Office, LibreOffice offers a cost-effective alternative with similar features and a wide range of templates and extensions.

Go to libreoffice.org

Windows 11 introduces a redesigned interface, improved multitasking, and gaming enhancements. It requires modern hardware with specific CPU, RAM, and storage specifications. Upgrading may necessitate new hardware purchases for compatibility.

Windows 11 supports certain processors like Intel Core 8th Gen or newer, AMD Ryzen 2000 or newer. It requires a minimum of 4 GB RAM and a TPM module for enhanced security. Furthermore, at least 64 GB of storage space, a DirectX 12-compatible graphics card, and a screen with a minimum resolution of 720p are required. These hardware components are crucial for system performance and security. Typically found in newer PCs, older models may lack all necessary features.

A Microsoft account is needed for setting up Windows 11, but internet access is only required during installation and activation. Currently, it is still possible to use Windows 11 without a Microsoft account through workarounds.

While running Windows 11 on unsupported hardware is possible, it may lead to performance issues and feature limitations. GNU/Linux offers a lightweight and customizable alternative for older hardware.

In summary, Windows 11 offers a modernized interface, improved security, and new features, making an upgrade worthwhile if hardware requirements are met.

Linux offers numerous benefits for home users, especially through distributions like Linux Mint, Ubuntu, and Debian. These operating systems are closely interconnected, with Ubuntu based on Debian and Linux Mint built on Ubuntu. A key aspect of GNU/Linux is its collaborative development by programmers who share open source code, ensuring a secure and stable platform.

After a brief adjustment period, many users find Linux usage more pleasant and efficient than other operating systems. Linux-based systems often perform better on older hardware, being more resource-efficient. This allows users to effectively utilize their older devices.

Another major advantage of Linux is its extensive repositories, providing a wide range of applications and programs for various purposes without additional software licensing costs.

Linux Mint, Ubuntu, and Debian are popular distributions regularly updated and supported by dedicated communities. These operating systems offer stability, security, and user-friendliness, making them attractive options for home users and small businesses.

Overall, GNU/Linux provides a cost-effective, flexible, and powerful alternative to commercial operating systems. With diverse distributions like Linux Mint, Ubuntu, and Debian, along with a wide array of applications and an active community, a linux-based operating system is an appealing choice for users valuing freedom, security, and versatility.

This is where my new partner joins the game: The AfB gemeinnützige GmbH restores used IT hardware and sells it for low prices. By re-using parts, they use our resources conservatively.
Also, the AfB gemeinnützige GmbH hires mainly people with a disability, who are very good at their jobs.

• Go to AfB social and green IT

1) Use each password only ONCE.

Anytime, one of your accounts can be compromised. It is not even up to you: Often times databases of web portals or smartphone apps get hacked.
The attacker will likely try to use your account data on different web sites.
Let’s assume for example, that the credentials for your account of the local newspaper get compromised. It might not be too big of a damage: Someone is now able to illegally read the newspaper for free.
But the damage gets much bigger if that person is able to now also read your emails (using the same credentials as in the newspaper account). Probably that person will find personal data, addresses of friends and is also able to gain access to multiple other accounts by using the “Forgot password”-option.

2) Do not use a dictionary.

If an attacker tries to guess a password, he or she will likely use the “dictionary method”.
Words from a dictionary will be used to guess an eventual password. This also includes first names, car models, sport clubs and much more. Adding a number or replacing a letter with a number won’t fool the attacker’s program.
So please avoid passwords like Chris123, D0n4ld or BMW323.

3) Do not use logic.

Often times passwords contain logic patterns. Attackers know this and take advantage of it. Even if it helps you remembering, try to avoid logic in your passwords.
Using letters in alphabetic or keyboard-layout order or using easy number sequences is generally a bad idea.
Therefore, passwords like abc123, qwert987 or 24681012 are easy to guess and should not be used.

4) Size does matter!

We knew it: Size does matter. Using a one-digit password with only numbers will give us 10 combinations of possible passwords. (0, 1, 2, 3…9) If we use two digits, we could have 100 possible combinations. (00 up to 99)
With each digit that we add to our password, the strength increases exponentially. If you use 5 instead of 4 digits, then the safety of a password didn’t only increase by a quarter or a factor one. It increased 10-fold. When we use other digits besides numbers, this effect will increase.
More possible combinations will make a password harder to guess.

5) Numbers, upper-case letters, lower-case letters and special characters

There are 26 upper-case and 26 lower-case letters and 10 numbers. This equals 62 possibilities.
Special characters can increase this even further. The hindsight is, that some web portals do not allow all special characters. Therefore it makes sense to check if special characters are allowed in each password you create.
Generally speaking, the more types of characters you are using, the safer your password becomes.

6) Store your passwords in a safe place.

All our carefulness can be worthless if we write down our passwords on a piece of paper that is right on the desk where any guest or colleague has access to.
If it has to be written down to paper, then store the paper in a safe location.
Storing passwords in an encrypted database on your computer is even safer. Free software like Passwordsafe, Revelation or KeePass will allow this. Most of this software will run on Windows, Linux and even on smartphones with Android or iOS.

Practical hint: Use a password generator.

The internet offers a good number of password generators. Some of them can be used in the browser directly. They will create a secure password automatically.
Previously mentioned password managers will most-likely have a password creation function included.

Examples

Here are some examples for good passwords:
9rZb#7LU6Es#UxEU
!pQEqfXaAXDa%6-n&@M&S$Z
ns6cs34fjRWWL7xhNq3c6Dnc6MkNcXme

Please be aware, that all of this informations and/or tutorials come without any type of warranty.

In order to defend against that, it is possible to encrypt the whole email message instead of only encrypting the transfer. The standard PGP (“pretty good privacy”) allows it. Other than the name may suggest, this system is actually really safe instead of being “pretty good”. And thanks to OpenPGP it is also open-source and freely available.

Please feel free to skip the following paragraph if you don’t like things to be too technical. For our email encryption, PGP uses asymmetric key algorithms. The recipient (person A) of a message has a private key. It is needed to decrypt a message. The sender (person B) needs the public key of person A for the encryption of the message. Person A, the recipient, needs to transmit this public key to person B before encryption can happen. After that, person B will be able to encrypt and send a message with the public key of person A. As long as person A keeps its private key safely on its PC, only person A will be able to read its messages.
In order to send a message from person A to person B, person A needs the public key of person B.
If there are any doubts about a person really being who the person claims to be, a so called “handshake” can be performed. In practice, this means the exchange of security words away from keyboard. The security words can be transmitted on the phone or in real live. This makes the email conversation not only secure, but also reliable.

Honestly, this sounded complicated. And it actually used to be complicated for a long time. Thanks to a project called PEP (“Pretty Easy Privacy”) it got really easy now. PEP can be installed as an add-on for some email client programs and will take care of everything regarding encryption. This includes generating, attaching and importing of public keys and also generating a private key and decrypting incoming encrypted messages. If the conversational partners are using OpenPGP without PEP, it is still possible to communicate encrypted. Add-Ons with PEP like Enigmail are freely available for email clients like Thunderbird. There are also commercial extensions, for example for Outlook.

The following lines are supposed to show how you can encrypt your email conversations -completely free- with Thunderbird and the Add-On Enigmail with PEP. The following pictures have been made on a GNU/Linux-based operating system with Thunderbird 60.7.0 (64-bit). The operation can be different with other operating systems and software versions.

Step 1: Open Menu (1) in Thunderbird and click on Add-Ons twice (2).

Step 2: Search for the Add-On “Enigmail”.

Step 3: Install Enigmail (self-explaining)

Enigmail automatically creates a private and a public key in the background. There is nothing to do for you. The picture just illustrates that a new key has been created.

Step 4: Importing the first key

We receive an email from someone who is also using PGP-based encryption. Enigmail automatically recognizes that a public key is attached to the email. If we want to answer or send a regular email to this participant, it will be automatically encrypted.

Step 5: Sending the first encrypted email and eventually performing a handshake

PEP shows, that this message is secure. This means, that right now we are sending this message encrypted. Our own public key will be automatically attached. Therefore the recipient will be able to encrypt its answer message.
Eventually we also want to secure the trust between us and the recipient of this email by performing a handshake. This is not mandatory, though.

By clicking on the yellow-marked area “Secure” the handshake can be arranged. PEP will give self-explaining instructions about this. If you want to perform a handshake, it has to be re-done for each participant you are communicating with.

Done. We have just massively increased the security of our email conversations.

Hints:

• Even if the email itself is encrypted, the transmission should still be secured with SSL. Only by encrypting the transmission it can be assured that meta data and passwords are also transferred encrypted.
• If our interlocutor does not use any type of PGP/PEP/OpenPGP-encryption, we won’t be able to communicate encrypted with that person. It always takes two! Enigmail with PEP will always show you if a message will actually be sent encrypted.
• Whenever we receive an encrypted message, it can only be decrypted with our private key. Therefore it makes sense to have backup of our key that is stored secure and privately, fe. on an encrypted USB flash drive.
• Reading encrypted messages is generally only possible with an email client program like Thunderbird. Reading encrypted messages on the web, fe. at GMail or Hotmail is only possible with a few providers with browser add-ons. Not every provider allows reading encrypted messages and some do only with limitations.

Please be aware, that all of this informations and/or tutorials come without any type of warranty.

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While stocks last. No liabilities or guarantees for coupons.

• Go to netcup

In the next days this website and those of its clients will move to a new server.

Key Points:

• Better bandwidth: Gigabit in both directions,
• more server performance,
• SSL-Encryption for all services,
• usage of free (as in freedom) and open-source software,
• better security, esp. new firewall.

This is how it works:

Choose provider: Choose the provider of the contract you want to cancel at the bottom of this website.

Type in your data: The Widget asks for your mailing address and a customer reference (f.e. cell phone number if you’re about to cancel your old cell phone plan). The orange note (“Kündigungsgarantie”) shows, that Aboalarm guarantees for the success of this cancellation. If you run into trouble because of this cancellation later, Aboalarm will pay for the legal fees.

Confirm. If you don’t want to pay for this service, you are also able to print the document yourself. Consequently, you’d need to take care of the delivery to your old provider and Aboalarm will not guarantee for the success of the cancellation.

Pay. Aboalarm takes care of everything else. You’ll receive a copy of the fax confirmation in an email. It is necessary to pay a small fee for this service.

Provider Overview

Just click on the provider where you want to cancel your contract.