nertil@wheezy:/var/etc$ sudo apt-get install php5
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  apache2-mpm-prefork libapache2-mod-php5 libonig2 libqdbm14 php5-cli php5-common
Suggested packages:
  php-pear
The following packages will be REMOVED:
  apache2-mpm-worker
The following NEW packages will be installed:
  apache2-mpm-prefork libapache2-mod-php5 libonig2 libqdbm14 php5 php5-cli php5-common
0 upgraded, 7 newly installed, 1 to remove and 0 not upgraded.
Need to get 6,097 kB of archives.
After this operation, 17.8 MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Err http://http.debian.net/debian/ wheezy/main apache2-mpm-prefork i386 2.2.22-13
  Could not resolve 'http.debian.net'
Err http://security.debian.org/ wheezy/updates/main php5-common i386 5.4.4-14+deb7u7
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main libapache2-mod-php5 i386 5.4.4-14+deb7u7
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main php5 all 5.4.4-14+deb7u7
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ wheezy/updates/main php5-cli i386 5.4.4-14+deb7u7
  Could not resolve 'security.debian.org'
Err http://http.debian.net/debian/ wheezy/main libonig2 i386 5.9.1-1
  Could not resolve 'http.debian.net'
Err http://http.debian.net/debian/ wheezy/main libqdbm14 i386 1.8.78-2
  Could not resolve 'http.debian.net'
Failed to fetch http://http.debian.net/debian/pool/main/a/apache2/apache2-mpm-prefork_2.2.22-13_i386.deb  Could not resolve 'http.debian.net'
Failed to fetch http://security.debian.org/pool/updates/main/p/php5/php5-common_5.4.4-14+deb7u7_i386.deb  Could not resolve 'security.debian.org'
Failed to fetch http://http.debian.net/debian/pool/main/libo/libonig/libonig2_5.9.1-1_i386.deb  Could not resolve 'http.debian.net'
Failed to fetch http://http.debian.net/debian/pool/main/q/qdbm/libqdbm14_1.8.78-2_i386.deb  Could not resolve 'http.debian.net'
Failed to fetch http://security.debian.org/pool/updates/main/p/php5/libapache2-mod-php5_5.4.4-14+deb7u7_i386.deb  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/p/php5/php5_5.4.4-14+deb7u7_all.deb  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/p/php5/php5-cli_5.4.4-14+deb7u7_i386.deb  Could not resolve 'security.debian.org'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?