having problems with the reverse zone for a domain

[William Alcantara]

If you execute host command against your mail server fqdn locally, does 
it give you an error?

You might also want to check if you have full delegation for the IP 
address you are using.

http://www.bluedtm.com

http://www.indulgenzacentro.com



enediel gonzalez wrote:
> Hello
> Note
>   For privacy I changed the real domain to domain.com and the real public ip 
> to 1.2.3.4
> 
> I have a domain name server associated to an static ip, at the same time is 
> the mail server of this domain, but checking the domain configuration with 
> the page www.dns.report I got everything fine except:
> 
> **********************************
> ERROR: The IP of one or more of your mail server(s) have no reverse DNS 
> (PTR) entries (if you see "Timeout" below, it may mean that your DNS servers 
> did not respond fast enough). RFC1912 2.1 says you should have a reverse DNS 
> for all your mail servers. It is strongly urged that you have them, as many 
> mailservers will not accept mail from mailservers with no reverse DNS entry. 
>   You can double-check using the 'Reverse DNS Lookup' tool at the DNSstuff 
> site (it contacts your servers in real time; the reverse DNS lookups in the 
> DNS report use our local caching DNS server). The problem MX records are:
> 4.3.2.1.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount: 0)
> ********************************
> 
> I'm using debian with bind9, and my current configuration is
> 
> 
> inside of named.conf
> --------------------------
> 
> zone "domain.com" {
>         type master;
>         file "/etc/bind/domain.com.hosts";
>         };
> 
> zone "3.2.1.in-addr.arpa" {
>         type master;
>         file "/etc/bind/domain.com.hosts.reverse";
>         };
> 
> content of /etc/bind/domain.com.hosts
> -----------------------------------------------------
> $ttl 38400
> domain.com.      IN      SOA     server1.domain.com. root.domain.com. (
>                         2005082401
>                         10800
>                         3600
>                         604800
>                         38400 )
> domain.com.      IN      NS      server1.domain.com.
> server2.domain.com.      IN      A       1.2.3.4
> domain.com.      IN      NS      server2.domain.com.
> server1.domain.com.      IN      A       1.2.3.4
> domain.com.      IN      MX      10 server1.domain.com.
> ftp.domain.com.  IN      A       1.2.3.4
> www.domain.com.  IN      A       1.2.3.4
> domain.com. IN TXT "v=spf1 a mx:server1.domain.com ~all"
> 
> /etc/bind/domain.com.hosts.reverse
> --------------------------------------------------
> $ORIGIN 254.55.70.in-addr.arpa.
> @       IN      SOA     server1.domain.com. root.domain.com. (
>                         2005082401
>                         10800
>                         3600
>                         604800
>                         38400 )
>         IN      NS      server1.domain.com.
>         IN      NS      server2.domain.com.
> 
> 4     IN      PTR     server1.domain.com.
> 
> 
> Something is wrong on the reverse declaration, but I can not figure out what 
> it is.
> 
> When I restart the bind9 service, it doesn't report me any error.
> 
> Thanks in advance for any suggestion
> Enediel
> Linux user 300141 Debian GNU/Linux
> 
> 
> 
>