Domains in Netstat

Found these when I run netstat ... can someone tell me what these are and how I prevent them from using my server.

These domains aren't on my server as far as I know.

tcp 0 0 1server.com:http finalfantasy.main:46531 TIME_WAIT

tcp 0 0 decimal.freeporterDomains in Netstatmtp 200-158-161-167.ds:1961 ESTABLISHED
tcp 0 0 decimal.freeporter:pop3 66.153.28.97:2452 TIME_WAIT
tcp 0 0 decimal.freeporter:pop3 66.153.28.97:2964 TIME_WAIT
tcp 0 0 decimal.freeporterDomains in Netstatmtp qdm.quickdrawmedi:60910 TIME_WAIT
udp 0 0 decimal.freeport:domain *:* named 1997227523 5814/named
udp 0 0 perfectwebnames.:domain *:* named 1997227521 5814/named
udp 0 0 parked.namesplus:domain *:* named 1997227519 5814/named

 

 

 

 

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