** Server can't find xxx.com: NXDOMAIN problems encountered by CentOS

** Server can't find xxx.com: NXDOMAIN problems encountered by CentOS

Dns software named Configuration

Although I configured them step by step
1./etc/named. conf
Listen-on port 53 {127.0.0.1}; changed to listen-on port 53 {any ;};
Allow-query {localhost;}; changed to listen-on port 53 {any ;};

2,
/Etc/named. rfc1912.zones (File introduced in the last line of named. conf)
Add a new domain name resolution at the end of the file.

Zone "a.com" IN {type master; file "named. a"; # Reference allow-update {none ;}; again ;};};

3. Create a file/var/named. a for reference by the code above (that is, the file field does not need to be written to the absolute path)

$TTL 1D@       IN SOA  @ rname.invalid. (                                        0       ; serial                                        1D      ; refresh                                        1H      ; retry                                        1W      ; expire                                        3H )    ; minimum        NS      @        A       127.0.0.1        AAAA    ::1www     A       8.8.8.8

But still cannot start the solution: After excluding systemctl status named, it is found that the named. conf permission is insufficient. So I added permissions.

chown named:named /etc/named.confchown 755 /etc/named.conf

But when I use the command

nslookup a.com

Still start the prompt ** server can't find www.a.com: NXDOMAIN. The resolution cannot be found.

Solution: 1. edit/etc/resolv. conf and add a nameserver 127.0.0.1 line for debugging. 2. Grant/var/named. a permission and restart the service.

chown named:named /etc/named.confchown 755 /etc/named.confservice named restart

The final solution is successful.