By default, the changes we make to the "firewall" are "temporary". In other words, when the iptables service is restarted or the server is restarted, the rules we normally add or the changes we make to the rules will disappear. In order to prevent this from happening, we need to "save" the rules.
(3) When anchoring, in addition to the lights specified in Item (1) of this paragraph, the lights or types specified in Article 30 for anchoring ships shall also be displayed.
Blue Shadow Massachusetts
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