QNAP Security VioStor CMS (Version: 1.0.1) - Manual (Page 161)

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The CMS supports the following DDNS providers:
http://www.dyndns.com , http://update.ods.org , http://www.dhs.org , http://www.dyns.c
x , http://www.3322.org , http://www.no-ip.com 。