> -----Original Message----- > From: centos-bounces at centos.org > [mailto:centos-bounces at centos.org] On Behalf Of Feizhou > Sent: Thursday, August 23, 2007 11:02 AM > To: CentOS mailing list > Subject: Re: [CentOS] BIND issues, server not responding > > > > You only need the tcp rule if you plan on serving up zone transfers, > > not if plan on only requesting them. > > > > Well, very rare but answers that are over 512 bytes will have > to be sent > over tcp since the rfc 1035 mandates maximum 512 bytes for the udp > payload. So tcp is not just for zone transfers only. True, but the client will then be responsible for opening up the tcp session and since it will be EST, there is no need to define incoming SYN packets no? -Ross ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.