I am using CentOS 6.3 Kernet 2.6.32-279.el6.i686.

- selinux is disabled
- My computer has 1 LAN interface and is configured to use statis IP "192.168.10.1".
- The hostname of the computer is configured to "pc01.test.office.org".
- The firewall is disabled (i.e. not start iptables)
- IPv6 is disabled by
1. adding "ipv6.disable=1" as kernel parameter in grub.conf
2. adding file containing a line "install ipv6 /bin/true" in /etc/modprobe.d
3. adding "IPV6INIT=no" and "IPV6_AUTOCONF=no" in /etc/sysconfig/network-scripts/ifcfg-eth0
4. adding "net.ipv6.conf.all.disable_ipv6=1" in /etc/sysctl.conf

I install bind-9.8.2 and configure it as follow:

/etc/named.conf:
options {
listen-on port 53 { 127.0.0.1; };
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 { 192.168.10.0/24; localhost; };
recursion yes;
};
logging {
channel default_debug {
file "data/named.run";
severity info;
print-severity yes;
print-time yes;
print-category yes;
};
};
zone "test.office.org" IN {
type master;
file "zone/test.office.org";
};
zone "10.168.192.IN-ADDR.ARPA" IN {
type master;
file "zone/192.168.10";
};
zone "." IN {
type hint;
file "named.ca";
};
incluce "/etc/named.rfc1912.zones";
incluce "/etc/named.root.key";

Then, inside /var/named/zone, I created 2 files:

File 1: 192.168.10
$TTL 1H
$ORIGIN 192.168.10.IN-ADDR.ARPA.
@ IN SOA pc01.test.office.org. root.test.office.org. (2012102902 3H 1H 1W 1H) IN NS pc01.test.office.org.
1 PTR pc01.test.office.org.

File 2: test.office.org
$TTL 1H
$ORIGIN test.office.org.
@ IN SOA pc01.test.office.org. root.test.office.org. (2012102902 3H 1H 1W 1H) IN NS pc01.test.office.org.
pc01 IN A 192.168.10.1
samba IN CNAME pc01
dhcp IN CNAME pc01
mail IN CNAME pc01
www IN CNAME pc01
ldap IN CNAME pc01
dns IN CNAME pc01

After configuration and setup, I run "ping pc01.test.office.org". It reply "ping: unknown host pc01.test.office.org".

If I run "host pc01.test.office.org", it reply "pc01.test.office.org has address 192.168.10.1"

Anyone tell me why "ping" cannot resolve it? Is the configuration incorrect?

Hi,

What's in /etc/nsswitch.conf? Make sure you have a line like this:
BTW the reverse zone is has a wrong ORIGIN. It should be
Regards

Have you tried this:

or

can you post the content of your /etc/resolv.conf file? ping uses this.
Im no expert in processes but you might try:

Yes, in /etc/nsswitch.conf, it has a line "hosts: files dns"
And, I corrected the ORIGIN.

But, still cannot ping it

The content of /etc/resolv.conf is:

#Generated by NetworkManager
search test.office.org

# No nameservers found; try putting DNS servers into your
# ifcfg files in /etc/sysconfig/network-scripts liek so:
#
# DNS1=xxx.xxx.xxx.xxx
# DNS2=xxx.xxx.xxx.xxx
# DOMAIN=lib.foo.com bar.foo.com

And, the output of running named-checkzone is OK, no error. The output of "strace -etrace=file ping pc01.test.office.org" and "strace -etrace=file host pc01.test.office.org" did not show any errors.

There are no nameservers defined in /etc/resolv.conf. So as NM suggests, i.e. edit /etc/sysconfig/network-scripts/ifcfg-eth0 (replace eth0 with your actual nic) and add
where x.x.x.x is the IP of your nameserver.


Now that I look again your configuration, the SOA is wrong in both zones. It should be

1 members found this post helpful.

Thanks. I solved the problem.