When dhcp-server is installed, syslogd cannot be started:

# rcsyslog start
Re-Starting syslog servicesio.c: bind_unix_socket(): bind failed /var/lib/dhcp/dev/log (Operation not permitted)
Error initializing configuration, exiting.
startproc:  exit status of parent of /sbin/syslog-ng: 1
                                                                     failed

Touching /var/lib/dhcp/dev/log allows syslogd to start:

# touch /var/lib/dhcp/dev/log
# rcsyslog start
Re-Starting syslog servicesio.c: bind_unix_socket(): /var/lib/dhcp/dev/log not a socket
                                                                     done