You can run the services under svscan(8) or runsvdir(8) by creating symbolic links in the /service directory:
ln -s dir /service/dir
ln -s dir/pop /service/dir-pop
The service will start within five seconds, and will be restarted upon reboot. You can use svc(8) to control the service.
tinydyndns-conf runs
tinydns-conf acct logacct dir myip
to set up a DNS publication service.
tinydyndns-conf modifies dir/root/Makefile to not run tinydns-data(8) upon normal request.
tinydyndns-conf arranges for tcpserver(1) to listen on TCP port 110, and to start qmail-popup(8), cvm-checkpassword(8), and after a successful login tinydyndns-update(8), and qmail-pop3d(8) upon connections.
tinydyndns-conf creates a setpasswd script and a default passwd database in dir/pop for the use with cvm-checkpassword(8).
http://smarden.org/tinydyndns/