There are many server admins that are abusing their server priveleges. Just because someone owns a PUBLIC DayZ server, doesn’t mean they can do what they want. If you get kicked repeatedly from a server for no reason and feel that a server admin is abusing their PUBLIC server, please report their server so that it gets taken down. Different rules apply to PRIVATE server hives, so make sure you report PUBLIC server abuse.
Please see this link for the rules the developers created regarding server hosting and reporting bad servers:
http://forums.dayzgame.com/index.php?/topic/158966-dayz-standalone-server-hosting-rules-server-reporting/
Here is a link also that tells you how to find out what the server IP is and additional help reporting servers:
http://www.reddit.com/r/dayz/comments/1x02t7/do_your_part_help_report_servers_that_violate/