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cgness@thor:~$ sudo apt-get source php5
Reading package lists... Done
Building dependency tree... Done
Skipping already downloaded file 'php5_5.1.2-1ubuntu3.2.dsc'
Need to get 8169kB of source archives.
Get:1 http://security.ubuntu.com dapper-security/main php5 5.1.2-1ubuntu3.2 (tar) [8064kB]
Err http://security.ubuntu.com dapper-security/main php5 5.1.2-1ubuntu3.2 (tar)
  Error reading from server - read (104 Connection reset by peer)
Get:2 http://security.ubuntu.com dapper-security/main php5 5.1.2-1ubuntu3.2 (diff) [105kB]
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/php5/php5_5.1.2.orig.tar.gz  Error reading from server - read (104 Connection reset by peer)
Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/php5/php5_5.1.2-1ubuntu3.2.diff.gz  MD5Sum mismatch
E: Failed to fetch some archives.