If the current date/time for the D-Link ShareCenter DNS-320 gets reset everytime the the NAS shuts down, a script can be used to perform date/time synchronisation on boot-up. (This requires Fonz fun_plug to be installed.)
Create the file /ffp/start/timesync.sh with the following content.
#!/ffp/bin/sh # PROVIDE: timesync # REQUIRE: inetd . /ffp/etc/ffp.subr name="timesync" start_cmd="timesync_start" timesync_start() { date +%s -s @`wget -O - -q http://www.icanhaztimestamp.com/`; } run_rc_command "$1"
Explanations
The key to the script lies in the following line.
date +%s -s @`wget -O - -q http://www.icanhaztimestamp.com/`;
It can be broken down as follows.
www.icanhaztimestamp.com
This is a web service that returns the current UNIX timestamp in plain text. (I.e. the HTTP response body contains nothing but the ten-digit current UNIX timestamp.)
wget -O - -q http://www.icanhaztimestamp.com/
This wget command makes a request to the specified URL and outputs the HTTP response body (in this case, the ten-digit current UNIX timestamp).
date +%s -s @`wget -O - -q http://www.icanhaztimestamp.com/`
This date command sets the current date/time to the specified UNIX timestamp which, in this case, is the response from www.icanhaztimestamp.com.
This script would run once when the NAS boots up, and hence, the date/time would be synchronised.
Note: wget had to be used to obtain the current date/time because ntpd did not appear to be present.
Note: Though the DNS-320 administrator console allowed an NTP server to be configured, the NAS did not appear to synchronise the time with the server. (Perhaps because ntpd was not present.)
References:
[1] https://nas-tweaks.net/tutorials/
[2] http://www.icanhaztimestamp.com/