Trouble with dns and debian update

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I tried to update my debian dreamplug server with the command running as root apt-get update and recieved these errors.

Err http://security.debian.org lenny/updates Release.gpg                                                                                     
  Could not resolve 'security.debian.org'
Err http://security.debian.org lenny/updates/main Translation-en_US                                                                          
  Could not resolve 'security.debian.org'
Err http://security.debian.org lenny/updates/contrib Translation-en_US                                                                       
  Could not resolve 'security.debian.org'
Err http://security.debian.org lenny/updates/non-free Translation-en_US                                                                      
  Could not resolve 'security.debian.org'
Err http://www.backports.org lenny-backports Releasegpg                                                                                     
  Could not resolve 'www.backports.org'
Err http://www.backports.org lenny-backports/main Translation-en_US                                      
  Could not resolve 'www.backports.org'
Err http://www.backports.org lenny-backports/contrib Translation-en_US                                   
  Could not resolve 'www.backports.org'
Err http://www.backports.org lenny-backports/non-free Translation-en_US                                  
  Could not resolve 'www.backports.org'
Err http://ftp.us.debian.org lenny Release.gpg                                                           
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org lenny/main Translation-en_US              
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org lenny/contrib Translation-en_US           
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org lenny/non-free Translation-en_US          
  Could not resolve 'ftp.us.debian.org'
Err http://http.us.debian.org stable Release.gpg                       
  Could not resolve 'http.us.debian.org'
Err http://http.us.debian.org stable/main Translation-en_US            
  Could not resolve 'http.us.debian.org'
Err http://http.us.debian.org stable/contrib Translation-en_US         
  Could not resolve 'http.us.debian.org'
Err http://http.us.debian.org stable/non-free Translation-en_US        
  Could not resolve 'http.us.debian.org'
Reading package lists... Done                                          
W: Failed to fetch http://ftp.us.debian.org/debian/dists/lenny/Release.gpg  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/lenny/main/i18n/Translation-en_US.gz  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/lenny/contrib/i18n/Translation-en_US.gz  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/lenny/non-free/i18n/Translation-en_US.gz  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://http.us.debian.org/debian/dists/stable/Release.gpg  Could not resolve 'http.us.debian.org'

W: Failed to fetch http://http.us.debian.org/debian/dists/stable/main/i18n/Translation-en_US.gz  Could not resolve 'http.us.debian.org'

W: Failed to fetch http://http.us.debian.org/debian/dists/stable/contrib/i18n/Translation-en_US.gz  Could not resolve 'http.us.debian.org'

W: Failed to fetch http://http.us.debian.org/debian/dists/stable/non-free/i18n/Translation-en_US.gz  Could not resolve 'http.us.debian.org'

W: Failed to fetch http://security.debian.org/dists/lenny/updates/Release.gpg  Could not resolve 'security.debian.org'

W: Failed to fetch http://security.debian.org/dists/lenny/updates/main/i18n/Translation-en_US.gz  Could not resolve 'security.debian.org'

W: Failed to fetch http://security.debian.org/dists/lenny/updates/contrib/i18n/Translation-en_US.gz  Could not resolve 'security.debian.org'

W: Failed to fetch http://security.debian.org/dists/lenny/updates/non-free/i18n/Translation-en_US.gz  Could not resolve 'security.debian.org'

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/Release.gpg  Could not resolve 'www.backports.org'

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/main/i18n/Translation-en_US.gz  Could not resolve 'www.backports.org'

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/contrib/i18n/Translation-en_US.gz  Could not resolve 'www.backports.org'

W: Failed to fetch http://www.backports.org/debian/dists/lenny-backports/non-free/i18n/Translation-en_US.gz  Could not resolve 'www.backports.org'

W: Some index files failed to download, they have been ignored, or old ones used instead.
W: You may want to run apt-get update to correct these problems

I am able to ping ip addresses but not namespaces. Can’t seem to figure out the problem. My /etc/resolv.conf file contains
nameserver 192.168.1.2
which is my router.

Answer

Try changing /etc/resolv.conf to:

nameserver 8.8.8.8
nameserver 8.8.4.4

You DNS server might be broken. Also I can’t seem to open those files. There was a topic recently on superuser. Lenny is End Of Life.

Attribution
Source : Link , Question Author : Sean , Answer Author : Community

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