How to “Forget” unwanted WiFi network in Debian Linux

It’s very simple.

In Debian/Ubuntu Linux the information about WiFi connections is stored in /etc/NetworkManager/system-connections/ folder.

Each file has name as SSID name of WiFI network and contains connections’ settings Network Manager has saved: SSID name, wireless key/passphrase, IP configuration method, etc.

WiFi Networks Files

The files cannot be deleted by another user than root. You can start any file manager as root and delete unwanted files or execute next commands in terminal:

cd /etc/NetworkManager/system-connections
rm <filename>

Lazarus + TGeckoBrowser

In this post I will describe how to easily create your own webbrowser with FPC in Lazarus IDE using Gecko engine.

About Gecko

Gecko is a web browser engine used in many applications developed by Mozilla Foundation and the Mozilla Corporation (notably the Firefox web browser including its mobile version and their e-mail client Thunderbird), as well as in many other open source software projects. Gecko is free and open-source software subject to the terms of the Mozilla Public License ver.2.

From the outset, Gecko was designed to support open Internet standards. Some of the standards Gecko supports include:

  • CSS Level 2.1 (partial support for CSS 3)
  • DOM Level 1 and 2 (partial support for DOM 3)
  • HTML4 (partial support for HTML5)
  • JavaScript 1.8.5 (full ECMAScript 5.1 support)
  • MathML
  • RDF
  • XForms (via an official extension)
  • XHTML 2.0
  • XML 2.0
  • XSLT and XPath, implemented in TransforMiiX

More about Gecko you can read on it’s Wikipedia Page, Gecko at Mozilla Developer’s Network and Gecko at MozillaWiki.

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Cleaning Up Magento’s Database Logs for Faster Performance

There are lots of ways to speed up your Magento’s database but the 1st way is always to clean it Logs.

Magento is very good, robust and highly stable eCommerce system but it’s database is not as efficient as it should be. Almost every operation with database for every user is written down into logs tables and sometimes these log tables have millions of records and take hundreds megabytes of disc space. Cleaning logs regularly helps in reducing latency of query execution and hence improves performance. Regular database cleaning can tidy up Magento database and all unused, cluttered or over encumbered records are sorted out.

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Joomla – Standard Sample Data Sets

While installing the new Joomla 3.x system on your site, on step 3 – “Overview” you can see the options to install sample data set:

  • None
  • Blog English (GB) Sample Data
  • Brochure English (GB) Sample Data
  • Default English (GB) Sample Data
  • Learn Joomla English (GB) Sample Data
  • Test English (GB) Sample Data

What is it and which option choose to install?

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