Category Archives: See all German articles

Possible causes for quality problems with laser printers

Posted on 20. February 2015 by robert

A poor quality, grazing on expression of laser printers can have several causes:

  1. The toner is (almost) empty.
    Then there are stripes, you are not black like other: bright stripes. This is the most common cause of quality problems.
    Solution: In this case, it often helps, the toner cartridge out of the printer to take and something to shake, distribute the remaining toner evenly over the whole width.
This is the beginning of the article Possible causes for quality problems with laser printers. View the full article (286 words, estimated 1:09 Min. Reading time)
Posted in See all German articles, Computer, Other | Tagged , , , | Leave a comment

Highlight Portraits on Photographs by Blurring the Background

Posted on 13. January 2012 by robert

It is a popular artistic means for portrait photos, to highlight the portrait, by bringing the background out of focus. If you do not care for all the technical details, but simply want to know, how to achieve it, can jumpt directly to the Results in brief jump.

Content

1. First approaches to unsharp masking

This is the beginning of the article Highlight Portraits on Photographs by Blurring the Background. View the full article (1679 words, 4 images, estimated 6:43 Min. Reading time)
Posted in See all German articles, Other, Photography, Connect-4 | Tagged , , | Leave a comment

IPv6 Course part 3: The target- and Source IP Selection (prefix policy)

Posted on 17. March 2011 by robert

In IPv6, it is provided in the standard, that a computer, even closer 1 NIC, has multiple IPs. This may be due:

This is the beginning of the article IPv6 Course part 3: The target- and Source IP Selection (prefix policy). View the full article (680 words, estimated 2:43 Min. Reading time)
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How to configure Thunderbird to digitally sign and encrypt emails using S / MIME?

Posted on 24. February 2011 by robert

The device involves the following steps:

  1. Production of a certificate with the public and private keys in the web browser
  2. Export the certificate to a file
  3. Import the certificate into Thunderbird
  4. Configuration of the certificate in Thunderbird

On the Wiki Thunderbird, , the essential technical explanations mail encryption and signing using S / MIME.

This is the beginning of the article How to configure Thunderbird to digitally sign and encrypt emails using S / MIME?. View the full article (927 words, 19 images, estimated 3:42 Min. Reading time)
Posted in See all German articles, Computer, Encryption | Tagged , , , , , , , | 1 How

How to configure Thunderbird for encryption and digital signing of emails with Enigmail / GnuPG

Posted on 23. February 2011 by robert

With the add-on "Enigmail for Thunderbird, it is very easy and comfortable to encrypt and digitally sign e-mails. This add-on used to encrypt the program package "GnuPG", you must also install the.

Also los:

On the side gnupg.org the appropriate package for your operating system Download. (click on "FTP", outlined in red in the screenshot)

This is the beginning of the article How to configure Thunderbird for encryption and digital signing of emails with Enigmail / GnuPG. View the full article (807 words, 31 images, estimated 3:14 Min. Reading time)
Posted in See all German articles, Computer, Encryption | Tagged , , , , , , , , | 1 How