Date: Fri, 13 Jul 2007 13:09:18 +0700 From: vuthecuong <cuongvt@fpt.vn> To: Olivier Nicole <on@cs.ait.ac.th> Cc: freebsd-questions@freebsd.org Subject: Re: is is able to setting up DNS server reverse lookup with DynamicIP? Message-ID: <4697170E.3000909@fpt.vn> In-Reply-To: <200707130552.l6D5qEM7071933@banyan.cs.ait.ac.th> References: <46970917.3030502@fpt.vn> <200707130536.l6D5akxS070187@banyan.cs.ait.ac.th> <46971201.8030101@fpt.vn> <200707130552.l6D5qEM7071933@banyan.cs.ait.ac.th>
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Sorry I not explained clearly: >Who is assigning the dynamic IP ? This is my Lan, server is freebsd 6.2, My LAN have 5 XP,Linux CLients. I registered a DynamicIP at dyndns.com: www.thecuong.gotdns.com In Freebsd 6.2, I have also postfix MTA. Currently my clients have mail adress such as cuongvt@thecuong.gotdns.com, hanhtm@thecuong.gotdns.com. With this mail addressed, I cand send/receive mail from/to my company, Yahoo etc. But my postfix only can receive mails from freebsd-questions mailing list, it can not send mail to this. I recognized that the cause of this problem is that my DNS (on Freebsd 6.2) not reverse lookup as freebsd-questions requiried in order to prevent spam. Freebsd-questions is currently treats cuongvt@thecuong.gotdns.com, hanhtm@thecuong.gotdns.com as spam. When mail fom these addressed come, it rejected. I suggest that now I will attached zone file and reverse file, then could you help me check and let me know what's wrong? Pls help me, I really need your help. Tnx Olivier Nicole wrote: >> Maybe I'm stupid because I already spent 3 days creating my zone file >> and reverse file >> but I still can not sussefull. >> I'm running FreeBSD 6.2, I have DynamicIP: www.thecuong.gotdns.com. >> Could you help me to create the simple example of zone file and reverse >> file for me >> > > Who is assigning the dynamic IP ? > > Dynamic DNS only works with DHCP: DCHP gives and IP to a machine and > then it informes DNS that it has given that IP and that now the DNS > should update its synamic tables accordingly. You cannot have dynamic > DNS working alone (well I think so). > > Plus the DNS server that holds dynamic reccords should be at a fixed > IP address (I never heard of a DNS server on a machine with dynamic > IP, that sounds way to unstable to me). > > Olivier > >
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