The following happened while installing dns bind9 ddmzserver:~# apt-get install bind9 Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: bind9-doc The following NEW packages will be installed: bind9 0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded. Need to get 0B/329kB of archives. After unpacking 860kB of additional disk space will be used. Selecting previously deselected package bind9. (Reading database ... 25462 files and directories currently installed.) Unpacking bind9 (from .../bind9_1%3a9.4.1-P1-1_i386.deb) ... Setting up bind9 (1:9.4.1-P1-1) ... Starting domain name service...: bind failed! Why the failure?