DirectAdmin doesn't really have anything to do with zend. The "./build zend" script just runs their script independant. The issue would be more based on your terminal and how the installer outputs to the screen, and uninstalling DA wouldn't change that.
Hi, I removed all users and groups (related to DirectAdmin) from /etc/passwd and /etc/group, as well as config files mentioned at http://www.directadmin.com/paths.html but when I re-installed, I still have a problem with NAMED and it won't start.
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Aug 21 21:56:10 gatekeeper named[6533]: /etc/named.conf:19: couldn't install keys for command channel 127.0.0.1#953: not found
Aug 21 21:56:10 gatekeeper named[6533]: /etc/named.conf:19: couldn't add command channel 127.0.0.1#953: not found
Aug 21 21:56:10 gatekeeper named[6533]: couldn't open pid file '/var/run/named/named.pid': No such file or directory
Aug 21 21:56:10 gatekeeper named[6533]: exiting (due to early fatal error)