root@raspberrypi:/home/pi# apt-get update
Err http://raspberrypi.collabora.com wheezy Release.gpg
  Could not connect to raspberrypi.collabora.com:80 (93.93.128.223). - connect (                                                                                                                                                             111: Connection refused)
Err http://repository.wolfram.com stable Release.gpg
  Could not connect to repository.wolfram.com:80 (140.177.204.60). - connect (11                                                                                                                                                             1: Connection refused)
Err http://archive.raspberrypi.org wheezy Release.gpg
  Could not connect to archive.raspberrypi.org:80 (93.93.130.39). - connect (111                                                                                                                                                             : Connection refused) [IP: 93.93.130.39 80]
Err http://archive.raspbian.org wheezy Release.gpg
  Could not connect to archive.raspbian.org:80 (5.153.225.206). - connect (111:                                                                                                                                                              Connection refused)
Reading package lists... Done
W: Failed to fetch http://archive.raspbian.org/raspbian/dists/wheezy/Release.gpg                                                                                                                                                               Could not connect to archive.raspbian.org:80 (5.153.225.206). - connect (111:                                                                                                                                                              Connection refused)

W: Failed to fetch http://raspberrypi.collabora.com/dists/wheezy/Release.gpg  Co                                                                                                                                                             uld not connect to raspberrypi.collabora.com:80 (93.93.128.223). - connect (111:                                                                                                                                                              Connection refused)

W: Failed to fetch http://archive.raspberrypi.org/debian/dists/wheezy/Release.gp                                                                                                                                                             g  Could not connect to archive.raspberrypi.org:80 (93.93.130.39). - connect (11                                                                                                                                                             1: Connection refused) [IP: 93.93.130.39 80]

W: Failed to fetch http://repository.wolfram.com/raspbian/dists/stable/Release.g                                                                                                                                                             pg  Could not connect to repository.wolfram.com:80 (140.177.204.60). - connect (                                                                                                                                                             111: Connection refused)

W: Some index files failed to download. They have been ignored, or old ones used                                                                                                                                                              instead.
root@raspberrypi:/home/pi# ping archive.raspberrypi.org/
ping: unknown host archive.raspberrypi.org/
root@raspberrypi:/home/pi# ping archive.raspberrypi.org
PING lb.raspberrypi.org (93.93.128.230) 56(84) bytes of data.
^C
--- lb.raspberrypi.org ping statistics ---
15 packets transmitted, 0 received, 100% packet loss, time 13999ms

root@raspberrypi:/home/pi#