Eu tenho bind de configuração assim:
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
options {
listen-on port 53 { any; };
# listen-on-v6 port 53 { ::1; };
directory "/var/named";
forwarders { 10.90.0.135; 10.90.0.174; };
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { any; };
recursion yes;
dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
zone "appletop.local" IN {
type master;
file "appletop.local";
allow-update { none; };
};
Mas não encaminha?
Se eu colocar o endereço do servidor DNS em resolv.conf
em outra máquina, recebo as pesquisas corretas para que o servidor DNS possa resolvê-lo, mas se eu apontar a outra máquina de volta para essa, não será possível resolver nomes.
O que há de errado?
Após alterações sugeridas por MadHatter:
Agora ele começa, mas fica pendurado em um dig + trace e não é encaminhado. Por que não vejo os endereços de encaminhadores abaixo?
[root@ns1 ~]# ping www.yahoo.com
^C
[root@ns1 ~]# cd /etc/
[root@ns1 etc]# cp named.conf named.conf.last
[root@ns1 etc]# vi named.conf
[root@ns1 etc]# /etc/init.d/named reload
Reloading named-sdb: [ OK ]
[root@ns1 etc]# service named stop
Stopping named: . [ OK ]
[root@ns1 etc]# /etc/init.d/named start
Starting named: [ OK ]
[root@ns1 etc]# nslookup www.yahoo.com
;; connection timed out; trying next origin
Server: 10.138.10.30
Address: 10.138.10.30#53
** server can't find www.yahoo.com: NXDOMAIN
E uma escavação com + trace:
[root@ns1 etc]# dig +trace www.yahoo.com
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.0.2.el6_4.6 <<>> +trace www.yahoo.com
;; global options: +cmd
. 518400 IN NS E.ROOT-SERVERS.NET.
. 518400 IN NS M.ROOT-SERVERS.NET.
. 518400 IN NS I.ROOT-SERVERS.NET.
. 518400 IN NS F.ROOT-SERVERS.NET.
. 518400 IN NS G.ROOT-SERVERS.NET.
. 518400 IN NS K.ROOT-SERVERS.NET.
. 518400 IN NS B.ROOT-SERVERS.NET.
. 518400 IN NS A.ROOT-SERVERS.NET.
. 518400 IN NS C.ROOT-SERVERS.NET.
. 518400 IN NS L.ROOT-SERVERS.NET.
. 518400 IN NS J.ROOT-SERVERS.NET.
. 518400 IN NS H.ROOT-SERVERS.NET.
. 518400 IN NS D.ROOT-SERVERS.NET.
Meu arquivo inteiro se parece com isso agora - o que está errado?
options {
listen-on port 53 { any; };
# listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { any; };
recursion yes;
dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic"; };
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
}; };
zone "." IN {
type forward;
forward first;
forwarders { 10.90.0.135;
10.90.0.174;
} ; };
include "/etc/named.rfc1912.zones"; include "/etc/named.root.key";
zone "appletop.local" IN {
type master;
file "appletop.local";
allow-update { none; }; };