bind server setup ( named)

catiewong · 11-14-2018, 11:00 PM

hen I would is to setup a DNS server , so that server in the network can use it to resolve hostname .
I just would like to setup bind server on my centos ( only have primary DNS server ) , I follow the step to setup it as below , but fail

I add the following lines in /etc/named.conf
#vi /etc/named.conf

Code:

zone "testserver" IN {
type master;
file "/etc/fwd.testserver.db";
allow-update { none; };
};

#vi /etc/fwd.testserver.db

Code:

$TTL 86400
@   IN  SOA     primary.myserver.com. root.myserver.com. (
2014112511  ;Serial
3600        ;Refresh
1800        ;Retry
604800      ;Expire
86400       ;Minimum TTL
)
;Name Server Information
@      IN  NS      primary.myserver.com.
;IP address of Name Server
primary IN  A       192.168.1.10
;A - Record HostName To Ip Address
www     IN  A       192.168.1.20
;CNAME record

where my DNS server is myserver.com (192.168.1.10 ) , the server I want to resolve is 192.168.1.20 ( hostname is testserver )

while I ping testserver , it is not work.

would advise what is wrong in my seting .

scasey · 11-15-2018, 12:10 AM

You've not defined testserver as a hostname in your named.conf Naming the zone doesn't mean anything...you could have named it "zone1" (not that you should do that...the zone should be named for the server it defines)
There must be at least an A record for the host:

Code:

testserver     IN  A       192.168.1.20

As written, you should be able to resolve www, 'tho.
If you can't do that, then your DNS is not set up correctly.

Caveat: It's been awhile since I've hosted my own DNS. For pure resolution purposes, I've found it much simpler to just use my ISPs' DNS servers.

catiewong · 11-15-2018, 12:32 AM

Do I need to config /etc/resolv.conf

scasey · 11-15-2018, 12:43 AM

Quote:

Originally Posted by catiewong

Do I need to config /etc/resolv.conf

Probably. That's where you tell the server to do its domain name resolution with testserver
Mine on my desktop. The first two are Cox name servers, the third is Google's

Code:

# more /etc/resolv.conf 
nameserver 68.2.16.30
nameserver 68.6.16.30
nameserver 8.8.8.8

yours would need to have

Code:

nameserver 192.168.1.20

berndbausch · 11-15-2018, 01:55 AM

You need to understand the fundamentals first. Go through a DNS tutorial or read a book about it. It's very mature technology, and the internet has a lot of information about it.

/etc/resolv.conf is needed on the DNS client. Since the DNS server is most probably also a client, yes you need it.

As scasey points out, the zone file needs to include the mapping from IP address to hostname, not unlike the /etc/hosts file. But there is much more than that to a zone file, and the DNS server is more than the zone file. If you don't understand the fundamentals, you will probably fail.