Date: Wed, 21 Nov 2012 10:12:02 -0800 (PST) From: Unga <unga888@yahoo.com> To: Ilya Kazakevich <kazakevichilya@gmail.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: Bind99 stopped resolving for external queries [SOLVED] Message-ID: <1353521522.90256.YahooMailNeo@web161903.mail.bf1.yahoo.com> In-Reply-To: <1353512187.68024.YahooMailNeo@web161902.mail.bf1.yahoo.com> References: <1353498387.59705.YahooMailNeo@web161902.mail.bf1.yahoo.com> <CAHv=rM2EjsTGHtRwwfywrMyyrXhA8ON3UxFjV7-L%2BhsnHyAogg@mail.gmail.com> <1353512187.68024.YahooMailNeo@web161902.mail.bf1.yahoo.com>
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> From: Unga <unga888@yahoo.com>=0A> To: Ilya Kazakevich <kazakevichilya@gm=
ail.com>=0A> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd=
.org>=0A> Sent: Wednesday, November 21, 2012 3:36 PM=0A> Subject: Re: Bind9=
9 stopped resolving for external queries=0A> =0A> Hi IIya=0A> =0A> Thank yo=
u for your reply. =0A> =0A>> Hello,=A0=0A> =0A>> =0A>> =0A>> =0A>>> From my=
laptop if I ping the server:=0A>>> ping www.mydoamin.com=0A>>> ping: canno=
t resolve www.mydoamin.com: Host name lookup failure=0A>>> =0A>>> But if I =
log in to the server and do the same ping, it works fine.=0A>>> =0A>>> =0A>=
> =0A>> =0A>> 1) check your laptop is configured to work with this DNS serv=
er (cat =0A> /etc/resolv.conf on laptop or "ipconfig /all | findstr DNS" in=
case of =0A> windows )=0A> =0A> My laptop and the server are in two differ=
ent countries. Btw, laptop also run =0A> FreeBSD.=0A> =0A> =0A> =0A>> 2) ch=
eck server is accessible (ping <YOUR_SERVER_IP> from laptop)=0A> =0A> Yes, =
the server is accessible (ping <YOUR_SERVER_IP> from the laptop.=0A> =0A> =
=0A>> 3) check server is accessible via TCP/53 =0A> ("telnet=A0<YOUR_SERVER=
_IP>=A053" from your laptop)=A0=0A> =0A> No, there was a reverse DNS error =
here. It was pointing to the Reverse DNS =0A> server of the data centre.=0A=
> =0A> Now its been corrected:=0A> =0A> telnet <YOUR_SERVER_IP> 53=0A> Tryi=
ng <YOUR_SERVER_IP>...=0A> Connected to ns1.mydomain.com.=0A> Escape charac=
ter is '^]'.=0A> =0A>> 4) check firewall on server and/or devices between s=
erver and laptop, it may =0A> block requests=0A> =0A> No firewall on the se=
rver yet. =0A> =0A> =0A>> 5) check your server is configured to use the sam=
e DNS:=A0cat =0A> /etc/resolv.conf=A0=0A>> =0A> nameserver 127.0.0.1=0A> na=
meserver other_ip1=0A> nameserver other_ip2=0A> =0A> =0A> Although the Reve=
rse DNS is now been corrected, still cannot ping as from the =0A> laptop:=
=0A> ping www.mydomain.com=0A> ping: cannot resolve www.mydomain.com: Host =
name lookup failure=0A> =0A> Any ideas?=0A> =0A> Regards=0A> Unga=0A> =0A=
=0AHi all=0A=0AFound the problem. The domain name was expired 2 days ago. T=
hat was the last thing I expected :)=0A=0ABest regards=0AUnga
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