NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST openssh-5.1p1 x86_64-linux /nix/store/shnnmbp2csnqr2xvppwhh8875lq7p099-openssh-5.1p1.drv /nix/store/3hr2y7nb2s91l4lhb3zw674s3kmxgzxq-openssh-5.1p1