= Problems =
 
'''Problems (troubleshooting)'''

'''1. How can I test my network Bindings?'''
 
Open a command line (Console). These commands can be helpful in debugging networking.
{{{
ping skolelinux.org    //sends test packets to the online server
mii-diag eth0          // Gives status information for each network card.
}}}

'''2. Why can I never install new packages?'''

If you see this error: 
{{{
Err http://security.debian.org stable/updates/main Packages
 Something wicked happened resolving webcache:3128 (-5)
}}}
then the ftp_proxy and http_proxy environment variables are set incorrectly. Just unset them by typing: 
{{{
export ftp_proxy=''
export http_proxy=''
}}}

This is only a temporary fix and will be lost next time you login or open a command line. To make the change permanent you must start any text editor program (as root) and open {{{/etc/environment}}}. Comment out (by adding a # character in front of the line) the two lines which set the proxies, as follows: 
{{{
#http_proxy=http://webcache:3128/
#ftp_proxy=http://webcache:3128/
}}}

'''3. I've noticed an enormous file called {{{music.raw}}} in my Home Directory. What is it?'''

If the sound device is not available, some audio players (e.g. xmms) will divert their output to a file instead. It's probably best to just delete the file. If you are curious and want to hear it, you can type this at a command line: 
{{{
 bplay -Ss44100 -b16 music.raw 
}}}

'''4. The ping succeeds but I still cannot access any webpages. What's wrong?'''

There's likely something wrong either with your nameserver or proxy settings.