Biography
There are two groups named DNF.
1.) DNF (formerly Duke Nukem Forever) is a hardcore punk/powerviolence band from the L.A. and S.F. bay areas featuring members of Trash Talk and Touche Amore. They formed in 2006 and went on hiatus in 2008. They reunited in 2011 and have released a 7", titled "Hurt".
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http://dnfpunx.bandcamp.com/
http://dnfpunx.blogspot.com/
2. Deustch Niederländische Freundschaft is an old school ebm group from Germany.
Biography text from Last.fm, available under CC BY-SA.