[Debian] Apt-get : NO_PUBKEY / GPG error Show[Debian] Apt-get : NO_PUBKEY / GPG error
When updating the Debian based system, it may happens that the apt-get displays an error message like:
W: GPG error: ftp://ftp.debian.org/ testing Release:
The following signatures couldn't be...
Expand your Desktop over multiple monitors ShowExpand your Desktop over multiple monitors
Hardware Requirements
Software Requirements
How to proceed
If you are using Windows and want to enlarge your current desktop without having to buy another huge screen, this is possible by...
[Windows XP] Repairing the network connection using command line Show[Windows XP] Repairing the network connection using command lines
Under Windows XP there is a small feature allowing you to repair a network connection. Go to the Network Connections options in Control panel (Control Panel / Network...
Download OpenOffice ShowOpenOffice is a free office application suite, including a word processor, spreadsheet, presentation tool, drawing package and database, compatible with all other major office suites like Microsoft Office (97-2007 formats).
Writer
Calc
...
Creating a local area network ShowWhy set up a local area network?
When you have several computers, it can be convenient to connect them to each other to create a local area network (LAN). Setting up such a network costs very little, contrary to what people may think.
Here are a...
WLAN Wireless LAN ShowWireless local area networks (WLAN)
A wireless local area network (WLAN for short) is a network covering an area equivalent to that of a business's local network, about a hundred metres in range. It allows terminals within the area of coverage to...
Data transmission - Cabling ShowCabling types
Several physical data-transmission media are available to connect together the various devices on a network. One possibility is to use cables. There are many types of cables, but the most common are:
Coaxial cable
Double twisted...