Date: Thu, 19 Mar 2015 14:55:35 +0000 From: Miguel Lopes Santos Ramos <org.freebsd@miguel.ramos.name> To: Ernie Luzar <luzar722@gmail.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: public network traffic to my ip address port 53 Message-ID: <1426776935.9502.2.camel@miguel.ramos.name> In-Reply-To: <550AE2A7.3010903@gmail.com> References: <550AE2A7.3010903@gmail.com>
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A Qui, 19-03-2015 ās 10:52 -0400, Ernie Luzar escreveu: > In my firewall log I see thousands of udp packets from ip addresses all > over the word trying to access my freebsd gateway server on port 53. > Right now I am blocking them and see no negative effects. > Is there any valid reason to allow these unsolicited inbound packets > access to my system on port 53? UDP port 53 is for DNS name resolution. You can block them, since you don't run a name server (otherwise, you would know what port 53 is for). However, if no one is listening on port 53, there isn't much reason to block it at the firewall. -- Miguel Ramos pgp:A006A14C
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