Err http://security.debian.org/ wheezy/updates/main openjdk-7-jre-lib all 7u25-2.3.10-1~deb7u1
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main openjdk-7-jre-headless amd64 7u25-2.3.10-1~deb7u1
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main openjdk-7-jre amd64 7u25-2.3.10-1~deb7u1
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main openjdk-7-jdk amd64 7u25-2.3.10-1~deb7u1
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main icedtea-7-jre-jamvm amd64 7u25-2.3.10-1~deb7u1
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main libxt-dev amd64 1:1.1.3-1+deb7u1
  Could not resolve 'security.debian.org'
Get:1 ftp://ftp.debian.org/debian/ stable/main libxt-dev amd64 1:1.1.3-1+deb7u1 [518 kB]
Fetched 518 kB in 1min 24s (6,106 B/s)
Failed to fetch http://security.debian.org/pool/updates/main/o/openjdk-7/openjdk-7-jre-lib_7u25-2.3.10-1~deb7u1_all.deb  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/o/openjdk-7/openjdk-7-jre-headless_7u25-2.3.10-1~deb7u1_amd64.deb  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/o/openjdk-7/openjdk-7-jre_7u25-2.3.10-1~deb7u1_amd64.deb  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/o/openjdk-7/openjdk-7-jdk_7u25-2.3.10-1~deb7u1_amd64.deb  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/o/openjdk-7/icedtea-7-jre-jamvm_7u25-2.3.10-1~deb7u1_amd64.deb  Could not resolve 'security.debian.org'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?