ddnssync [options]
-h: Show this help text and exit
-v: Be more verbose with output
-q: Supress most output
-f: Force update of all domains
-i <addr>: Override IP address and update, if req'd, based on IP value
-u <user>: Override user name for DNS services that require it
-p <pwd>: Override user password for DNS services that require it
-o <file>: Override location of application INI file
-a <dir>: Override applcation data directory
-d: Run as daemon
-t <secs>: Number of seconds to sleep between runs (requires -d)
-k: Don't fork daemon to background