Difference between revisions of "Cluster der kan alt/DNS Server"

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(→‎First step: add domain zone – dka.dk)
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We will create 2 files.
 
We will create 2 files.
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#/etc/bind/zones/dka.dk.db
+
#/etc/bind/zones/mydomain.com.db
 
#/etc/bind/zones/rev.0.168.192.in-addr.arpa
 
#/etc/bind/zones/rev.0.168.192.in-addr.arpa
 
   
 
   
−
===First step: add domain zone – dka.dk===
+
===First step: add domain zone – mydomain.com===
  
  
Line 25: Line 25:
 
<source lang=cli>
 
<source lang=cli>
 
# Our domain zone
 
# Our domain zone
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zone "dka.dk" {
+
zone "mydomain.com" {
 
   type master;
 
   type master;
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   file "/etc/bind/zones/dka.db";
+
   file "/etc/bind/zones/mydomain.com.db";
 
}
 
}
 
   
 
   
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   file "/etc/bind/zones/rev.0.168.192.in-addr.arpa";
 
   file "/etc/bind/zones/rev.0.168.192.in-addr.arpa";
 
}
 
}
−
 
−
 
−
 
 
</source>
 
</source>
  
−
We just created a new domain. Please note: later we will create two files named mydomain.com.db and rev.0.168.192.in-addr.arpa files. Also, notice the reverse IP address sequence in the reverse DNS section.
+
===Secund step: Add the DNS servers from your ISP===
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−
# Let’s add the DNS servers from your ISP. In my case, I’m using Comcast DNS servers. You can place the primary and secondary DNS servers here separated by semicolons.
 
  
 +
# Sudo vi /etc/bind/named.conf.options
  
−
sudo vi /etc/bind/named.conf.options
+
<source lang=cli>
−
 
+
Forwarders {
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forwarders
+
  x.x.x.x
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+
};
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  8.8.8.8
 
−
 
 
−
 
 
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Save file. Exit.
 
−
   
 
−
# Now, let’s modify the resolv.conf file found in /etc and place the IP address of our DNS server which is set to 192.168.0.9.
 
−
 
 
−
 
 
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sudo vi /etc/resolv.conf
 
−
 
 
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search mydomain.com.
 
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nameserver 192.168.0.9
 
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# Now, let’s define the zones.
 
−
 
 
−
 
 
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sudo mkdir /etc/bind/zones
 
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sudo vi /etc/bind/zones/dka.dk.db
 
−
);
 
−
TTL 3D
 
−
IN SOA ns.mydomain.com. admin.dka.dk. (
 
−
  2007062001
 
−
  28800
 
−
  3600
 
−
  604800
 
−
  38400
 
−
);
 
−
dka.dk.        IN      NS        ns.mydomain.com.
 
−
ubuntudesktop  IN      A          192.168.0.10
 
−
www            IN      CNAME      ubuntudesktop
 
−
pc            IN      A          192.168.0.11
 
−
gw            IN      A          192.168.0.1
 
−
                      TXT        "Network Gateway"
 
−
The TTL or time to live is set for 3 days
 
−
The ns.mydomain.com nameserver is defined
 
−
ubuntudesktop, pc and gateway are entered as an A record
 
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An alias of www is assigned to ubuntudesktop using CNAME
 
−
 
−
# Let’s create a “rev.0.168.192.in-addr.arpa” file for reverse lookup.
 
−
 
 
−
 
 
−
sudo vi /etc/bind/zones/rev.0.168.192.in-addr.arpa
 
−
 
 
−
(
 
−
TTL 3D
 
−
@      IN      SOA    ns.dka.dk. admin.dka.dk. (
 
−
                2007062001
 
−
                28800
 
−
                604800
 
−
                604800
 
−
                86400
 
−
)
 
−
        IN      NS      ns.dka.dk.
 
−
1      IN      PTR    gw.dka.dk.
 
−
10      IN      PTR    ubuntudesktop.dka.dka.
 
−
11      IN      PTR    pc.dka.dk.
 
−
);
 
−
3. Let’s restart Bind to activate our latest changes.
 
−
 
 
−
 
 
−
sudo /etc/init.d/bind9 restart
 
−
4. Finally, let’s test our new domain and DNS entries.
 
−
 
−
Dig
 
−
 
 
−
 
 
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$ dig mydomain.com
 
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Nslookup
 
  
  
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nslookup gw
 
−
5. That’s it.
 
  
  
 
{{Source cli}}
 
{{Source cli}}
 
[[Category:Cliuster]][[Category:Ubuntu]]
 
[[Category:Cliuster]][[Category:Ubuntu]]

Revision as of 13:04, 18 April 2012

Installation af DNS

Instructions

Install DNS sserver software

sudo apt-get install bind9

configure DNS (Bind)

We need to touch 5 files.

We will edit 3 files.

  1. /etc/bind/named.conf.local
  2. /etc/bind/named.conf.options
  3. /etc/resolv.conf

We will create 2 files.

  1. /etc/bind/zones/mydomain.com.db
  2. /etc/bind/zones/rev.0.168.192.in-addr.arpa

First step: add domain zone – mydomain.com

  • sudo vi /etc/bind/named.conf.local
# Our domain zone
zone "mydomain.com" {
   type master;
   file "/etc/bind/zones/mydomain.com.db";
}
 
# For reverse DNS 
zone "0.168.192.in-addr.arpa" {
   type master;
   file "/etc/bind/zones/rev.0.168.192.in-addr.arpa";
}

Secund step: Add the DNS servers from your ISP

  1. Sudo vi /etc/bind/named.conf.options

<source lang=cli> Forwarders { 

x.x.x.x

};

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