Hi everybody!

I have a very big problem, I can not make any updates on my debian lenny.

I get everytime this errors with apt-get update:

Err http://security.debian.org lenny/updates Release.gpg
  Connection failed
Err http://www.backports.org lenny-backports Release.gpg
  Connection failed
Err http://ftp.at.debian.org lenny Release.gpg                                                
  Connection failed
Err http://debian.sil.at lenny-backports Release.gpg                                                                    
  Connection failed
Err http://www.backports.org lenny-backports/main Translation-en_US                                                     
  Connection failed
Err http://ftp.at.debian.org lenny/main Translation-en_US                                                                 
  Connection failed
Err http://debian.sil.at lenny-backports/main Translation-en_US                                                           
  Connection failed
Err http://security.debian.org lenny/updates/main Translation-en_US                                                       
  Connection failed
Err http://www.backports.org lenny-backports/contrib Translation-en_US                        
  Connection failed
Err http://ftp.at.debian.org lenny/contrib Translation-en_US                                                              
  Connection failed
Err http://debian.sil.at lenny-backports/contrib Translation-en_US                                                        
  Connection failed
Err http://www.backports.org lenny-backports/non-free Translation-en_US                                                 
  Connection failed
Err http://security.debian.org lenny/updates/contrib Translation-en_US                                                    
  Connection failed
Err http://ftp.at.debian.org lenny/non-free Translation-en_US                                                             
  Connection failed
Ign http://www.backports.org lenny-backports Release                                                                      
Err http://debian.sil.at lenny-backports/non-free Translation-en_US                                                       
  Connection failed
Err http://security.debian.org lenny/updates/non-free Translation-en_US                       
  Connection failed
Ign http://ftp.at.debian.org lenny Release                                                                                
Ign http://www.backports.org lenny-backports/main Packages                                                                
Ign http://debian.sil.at lenny-backports Release                                               
Ign http://security.debian.org lenny/updates Release                                           
Ign http://ftp.at.debian.org lenny/main Packages                                                                          
Ign http://www.backports.org lenny-backports/contrib Packages                                                             
Ign http://debian.sil.at lenny-backports/main Packages                                         
Ign http://security.debian.org lenny/updates/main Packages                                                                
Ign http://ftp.at.debian.org lenny/contrib Packages                                                                       
Ign http://www.backports.org lenny-backports/non-free Packages                                                            
Ign http://debian.sil.at lenny-backports/contrib Packages                                                                 
Err http://www.backports.org lenny-backports/main Packages                                                                
  Connection failed
Ign http://security.debian.org lenny/updates/contrib Packages                                                            
Ign http://ftp.at.debian.org lenny/non-free Packages                                                                     
Err http://www.backports.org lenny-backports/contrib Packages                                                            
  Connection failed
Ign http://security.debian.org lenny/updates/non-free Packages                                                            
Ign http://debian.sil.at lenny-backports/non-free Packages                                                                
Ign http://ftp.at.debian.org lenny/main Sources                                                                          
Err http://www.backports.org lenny-backports/non-free Packages                                                           
  Connection failed
Ign http://security.debian.org lenny/updates/main Sources                                                                
Ign http://ftp.at.debian.org lenny/contrib Sources                                                                       
Err http://debian.sil.at lenny-backports/main Packages                                             
  Connection failed
Ign http://security.debian.org lenny/updates/contrib Sources
Ign http://ftp.at.debian.org lenny/non-free Sources
Err http://debian.sil.at lenny-backports/contrib Packages                
  Connection failed
Ign http://security.debian.org lenny/updates/non-free Sources            
Err http://debian.sil.at lenny-backports/non-free Packages                                         
  Connection failed
Err http://ftp.at.debian.org lenny/main Packages                                                   
  Connection failed
Err http://security.debian.org lenny/updates/main Packages               
  Connection failed
Err http://security.debian.org lenny/updates/contrib Packages
  Connection failed
Err http://ftp.at.debian.org lenny/contrib Packages
  Connection failed
Err http://security.debian.org lenny/updates/non-free Packages
  Connection failed
Err http://ftp.at.debian.org lenny/non-free Packages
  Connection failed
Err http://security.debian.org lenny/updates/main Sources
  Connection failed
Err http://ftp.at.debian.org lenny/main Sources    
  Connection failed
Err http://security.debian.org lenny/updates/contrib Sources
  Connection failed
Err http://ftp.at.debian.org lenny/contrib Sources 
  Connection failed
Err http://security.debian.org lenny/updates/non-free Sources
  Connection failed
Err http://ftp.at.debian.org lenny/non-free Sources
  Connection failed
W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/Release.gpg  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/main/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/contrib/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/non-free/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://debian.sil.at/backports.org/dists/lenny-backports/Release.gpg  Connection failed

W: Failed to fetch http://debian.sil.at/backports.org/dists/lenny-backports/main/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://debian.sil.at/backports.org/dists/lenny-backports/contrib/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://debian.sil.at/backports.org/dists/lenny-backports/non-free/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/Release.gpg  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/main/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/contrib/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/non-free/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/Release.gpg  Connection failed

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/main/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/contrib/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/non-free/i18n/Translation-en_US.gz  Connection failed

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/main/binary-amd64/Packages  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/main/binary-amd64/Packages  Connection failed

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/contrib/binary-amd64/Packages  Connection failed

W: Failed to fetch http://debian.sil.at/backports.org/dists/lenny-backports/main/binary-amd64/Packages  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/main/binary-amd64/Packages  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/contrib/binary-amd64/Packages  Connection failed

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/non-free/binary-amd64/Packages  Connection failed

W: Failed to fetch http://debian.sil.at/backports.org/dists/lenny-backports/contrib/binary-amd64/Packages  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/contrib/binary-amd64/Packages  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/non-free/binary-amd64/Packages  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/non-free/binary-amd64/Packages  Connection failed

W: Failed to fetch http://debian.sil.at/backports.org/dists/lenny-backports/non-free/binary-amd64/Packages  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/main/source/Sources  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/main/source/Sources  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/contrib/source/Sources  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/contrib/source/Sources  Connection failed

W: Failed to fetch http://ftp.at.debian.org/debian/dists/lenny/non-free/source/Sources  Connection failed

W: Failed to fetch http://security.debian.org/dists/lenny/updates/non-free/source/Sources  Connection failed

E: Some index files failed to download, they have been ignored, or old ones used instead.

deb http://ftp.at.debian.org/debian/ lenny main contrib non-free
deb-src http://ftp.at.debian.org/debian/ lenny main contrib non-free

deb http://debian.sil.at/backports.org/ lenny-backports main contrib non-free

deb http://security.debian.org/ lenny/updates main contrib non-free
deb-src http://security.debian.org/ lenny/updates main contrib non-free

deb http://www.backports.org/debian lenny-backports main contrib non-free

 wget  http://www.backports.org/debian lenny-backports

--2009-12-04 09:52:35--  http://www.backports.org/debian
Connecting to 192.168.65.146:8118... connected.
Proxy request sent, awaiting response... Read error (Connection reset by peer) in headers.
Retrying.

There's apparently a problem with the way you connect to the net vs. what you configured. From the output you posted it seems that you configured the system to use a proxy for HTTP connections, but that machine apparently doesn't know it's a proxy.

Try running

unset http_proxy
aptitude update

Yea it works!

Thank you so much!!!