Linux DNS cache server and forward and backward zone configuration

DNS cache server

Experimental Machine IP 192.168.1.202

First of all:

1. Yum install bind bind-libs bind-utils-y download package Installation

2. cp/etc/named.conf /etc/named.conf.bak Copy a configuration file

3. Vim named.conf into the configuration file

(within the red box is the place to add or modify)

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/8A/DF/wKioL1g-RjOzq0VIAAAsQzbD7wQ200.png "title=" 1.png " alt= "Wkiol1g-rjozq0viaaasqzbd7wq200.png"/>

Then save and exit.

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/8A/DF/wKioL1g-RqPRM0ApAABDGxsJ7Sg724.png "title=" 2.png " alt= "Wkiol1g-rqprm0apaabdgxsj7sg724.png"/>

Forward Zone resolution:

1. Vim/etc/named.rfc1912.zones Enter the file to add the following items
   

650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M01/8A/E0/wKioL1g-TmDSrrQpAAAUGT2luZQ850.png "title=" 5.png " alt= "Wkiol1g-tmdsrrqpaaaugt2luzq850.png"/>

2. Create a file within the/var/named/folder Lantern.com.zone

Vim Lantern.com.zone Enter the following

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M00/8A/E0/wKioL1g-TtHR6-tpAAA7tCywRJE601.png "title=" 3.png " alt= "Wkiol1g-tthr6-tpaaa7tcywrje601.png"/>

Then check if there are any problems.

650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M02/8A/E0/wKioL1g-TuqyYBU7AAAXBQusOLc992.png "title=" 4.png " alt= "Wkiol1g-tuqyybu7aaaxbqusolc992.png"/>

See the OK word is correct.

Next, modify the permissions of the Lantern.com.zone file to belong to the group. Modify to the same as other files.

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M01/8A/E0/wKioL1g-T8uiK0b-AAA339ai2LM139.png "style=" float: none; "title=" 6.png "alt=" Wkiol1g-t8uik0b-aaa339ai2lm139.png "/>

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M02/8A/E3/wKiom1g-T8yhBRELAAA1fkHhDYk557.png "style=" float: none; "title=" 7.png "alt=" Wkiom1g-t8yhbrelaaa1fkhhdyk557.png "/>

The next step is to restart the service. 650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M00/8A/E4/wKiom1g-U_qBavDEAAAVIV37vVU285.png "title=" 8.png " alt= "Wkiom1g-u_qbavdeaaaviv37vvu285.png"/>

That's all the prep work. If it's correct, you can test it.

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/8A/E0/wKioL1g-VHejxO6zAAB2nRo6a2E921.png "title=" 9.png " alt= "Wkiol1g-vhejxo6zaab2nro6a2e921.png"/>

is polling can see

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/8A/E0/wKioL1g-VTqCa0idAABd7VJRqRw699.png "title=" 10.png "alt=" Wkiol1g-vtqca0idaabd7vjrqrw699.png "/>

The following are queries with NS and MX.

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M01/8A/E4/wKiom1g-Vi3D-iifAAB4BlJhzD8601.png "style=" float: none; "title=" 11.png "alt=" Wkiom1g-vi3d-iifaab4bljhzd8601.png "/>

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/8A/E0/wKioL1g-Vi7x1jMmAACNdw378F8922.png "style=" float: none; "title=" 12.png "alt=" Wkiol1g-vi7x1jmmaacndw378f8922.png "/>

The above is the forward

The following is the reverse

1. Vim/etc/named.rfc1912.zones Add the following items after entering the file

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M02/8A/E4/wKiom1g-V7ORBkddAAAT6709aC8875.png "title=" 13.png "alt=" Wkiom1g-v7orbkddaaat6709ac8875.png "/>

2. Create a 192.168.1.zone file within the/var/named/

Vim 192.168.1.zone Add some content inside

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/8A/E0/wKioL1g-W27AX71WAAA2zsi-XpU766.png "title=" 14.png "alt=" Wkiol1g-w27ax71waaa2zsi-xpu766.png "/>

Then save the exit. The file is then checked for errors.

Named-checkconf

Named-checkzone "192.168.1.zone"/var/named/192.168.1.zone

The next step is to modify the permissions of this file and the group

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/8A/E0/wKioL1g-XHDxTtoAAAA9Oc9k3B0999.png "title=" 15.png "alt=" Wkiol1g-xhdxttoaaaa9oc9k3b0999.png "/>

Then restart the service

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/8A/E4/wKiom1g-XLvBhr2HAAAM1VVTY-M044.png "title=" 16.png "alt=" Wkiom1g-xlvbhr2haaam1vvty-m044.png "/>

Here is the test

650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/8A/E4/wKiom1g-Ys2gFLoWAAA3j984m0c475.png "title=" 17.png "alt=" Wkiom1g-ys2gflowaaa3j984m0c475.png "/>

650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/8A/E4/wKiom1g-Z9_SG8URAABpqw9NDxY822.png "title=" 18.png "alt=" Wkiom1g-z9_sg8uraabpqw9ndxy822.png "/>

These are all the results of the experiment.

Linux DNS cache server and forward and backward zone configuration