c83-249-192-67:/home/sedde# LANG=C apt-get install links2
Reading package lists... Done
Building dependency tree... Done
The following NEW packages will be installed:
  links2
0 upgraded, 1 newly installed, 0 to remove and 74 not upgraded.
Need to get 2075kB of archives.
After unpacking 3310kB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  links2
Install these packages without verification [y/N]? y
Get:1 http://ftp.debian.org testing/main links2 2.1pre23-1 [2075kB]
Fetched 2001kB in 10s (195kB/s)
W: Couldn't stat source package list http://security.debian.org testing/updates/main' Packages (/var/lib/apt/lists/security.debian.org_dists_testing_updates_main'_binary-i386_Packages) - stat (2 No such file or directory)
Selecting previously deselected package links2.
(Reading database ... 107863 files and directories currently installed.)
Unpacking links2 (from .../links2_2.1pre23-1_i386.deb) ...
Setting up links2 (2.1pre23-1) ...

W: Couldn't stat source package list http://security.debian.org testing/updates/main' Packages (/var/lib/apt/lists/security.debian.org_dists_testing_updates_main'_binary-i386_Packages) - stat (2 No such file or directory)
W: You may want to run apt-get update to correct these problems
c83-249-192-67:/home/sedde#