Aug 15 17:04:28 tjener dhcpd: LDAP-HOST line 2: semicolon expected.
Aug 15 17:04:28 tjener dhcpd: option host-name ws01.
Aug 15 17:04:28 tjener dhcpd: ^
It seem to indicate a typo in the dhcp setup related to the ws01 DNS
name. How did you add ws01 to DNS? Is its name invalid somehow?