strict digraph G {
        edge[len=5];
        node[style=filled];
        "keyserver.ubuntu.com 11370" [color=green, fontcolor=black, label="keyserver.ubuntu.com\n"];
        "pgp.surf.nl 11370" [color=green, fontcolor=black, label="pgp.surf.nl\n"];
        "fi.pgpkeys.eu:11371" [color=green, fontcolor=black, label="fi.pgpkeys.eu\n"];
        "pgp.surf.nl 11370" -> "fi.pgpkeys.eu:11371";
}