dpns-chmod(1) on Linux
The text aa35c3c7c890, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it. The page shows this text now.
change access mode of a DPNS directory/file in the name server