Centos 7 配置DNS服务器步骤-天翼云

服务器

[root@test1 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33

TYPE=Ethernet

PROXY_METHOD=none

BROWSER_ONLY=no

BOOTPROTO=static

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=ens33

UUID=eddf2609-55a9-469e-a884-88d05191a1f5

DEVICE=ens33

ONBOOT=yes

IPV6_PRIVACY=no

IPADDR=192.168.10.1

NETMASK=255.255.255.0

GATEWAY=192.168.10.254

DNS1=192.168.10.1

DNS2=192.168.10.2

[root@test1 ~]# systemctl restart network

[root@test1 ~]# ip add

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

       valid_lft forever preferred_lft forever

    inet6 ::1/128 scope host

       valid_lft forever preferred_lft forever

2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

    link/ether 00:0c:29:d1:20:a2 brd ff:ff:ff:ff:ff:ff

    inet 192.168.10.1/24 brd 192.168.10.255 scope global noprefixroute ens33

       valid_lft forever preferred_lft forever

    inet6 fe80::9c24:1afb:3d4:da7a/64 scope link noprefixroute

       valid_lft forever preferred_lft forever

3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000

    link/ether 52:54:00:fb:ac:4d brd ff:ff:ff:ff:ff:ff

    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0

       valid_lft forever preferred_lft forever

4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000

    link/ether 52:54:00:fb:ac:4d brd ff:ff:ff:ff:ff:ff

[root@test1 ~]# mkdir /opt/centos

[root@test1 ~]# mount /dev/cdrom /opt/centos/

mount: /dev/sr0 写保护，将以只读方式挂载

[root@test1 ~]# mv /etc/yum.repos.d/* /home/

[root@test1 ~]# vim /etc/yum.repos.d/local.repo

[centos]

name=centos

baseurl=file:///opt/centos

gpgcheck=0

enabled=1

[root@test1 ~]# yum clean all

已加载插件：fastestmirror, langpacks

正在清理软件源： centos

Cleaning up list of fastest mirrors

Other repos take up 219 M of disk space (use --verbose for details)

[root@test1 ~]# yum repolist

已加载插件：fastestmirror, langpacks

Determining fastest mirrors

centos                                                          | 3.6 kB 00:00:00

(1/2): centos/group_gz                                          | 166 kB 00:00:00

(2/2): centos/primary_db                                        | 3.1 MB 00:00:00

源标识                                   源名称        状态

centos                                    centos        4,021

[root@test1 ~]# yum install bind bind-chroot -y

已加载插件：fastestmirror, langpacks

Loading mirror speeds from cached hostfile

正在解决依赖关系

--> 正在检查事务

---> 软件包 bind.x86_64.32.9.9.4-72.el7 将被安装

---> 软件包 bind-chroot.x86_64.32.9.9.4-72.el7 将被安装

--> 解决依赖关系完成

依赖关系解决

=======================================================================================

Package              架构            版本                       源               大小

=======================================================================================

正在安装:

bind                 x86_64          32:9.9.4-72.el7            centos          1.8 M

bind-chroot          x86_64          32:9.9.4-72.el7            centos           88 k

事务概要

=======================================================================================

安装 2 软件包

总下载量：1.9 M

安装大小：4.5 M

Downloading packages:

---------------------------------------------------------------------------------------

总计                                                      6.5 MB/s | 1.9 MB 00:00

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

  正在安装    : 32:bind-9.9.4-72.el7.x86_64                                        1/2

  正在安装    : 32:bind-chroot-9.9.4-72.el7.x86_64                                 2/2

  验证中      : 32:bind-9.9.4-72.el7.x86_64                                        1/2

  验证中      : 32:bind-chroot-9.9.4-72.el7.x86_64                                 2/2

已安装:

  bind.x86_64 32:9.9.4-72.el7            bind-chroot.x86_64 32:9.9.4-72.el7

完毕！

[root@test1 ~]# rpm -qa |grep bind

bind-license-9.9.4-72.el7.noarch

bind-9.9.4-72.el7.x86_64

keybinder3-0.3.0-1.el7.x86_64

bind-libs-lite-9.9.4-72.el7.x86_64

bind-libs-9.9.4-72.el7.x86_64

bind-utils-9.9.4-72.el7.x86_64

rpcbind-0.2.0-47.el7.x86_64

bind-chroot-9.9.4-72.el7.x86_64

[root@test1 ~]# vim /etc/named.conf

options {

        listen-on port 53 { any; };

        listen-on-v6 port 53 { ::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";

        recursing-file "/var/named/data/named.recursing";

        secroots-file   "/var/named/data/named.secroots";

        allow-query     { any; };



        recursion yes;

        dnssec-enable no;

        dnssec-validation no;

        /* Path to ISC DLV key */

        bindkeys-file "/etc/named.iscdlv.key";

        managed-keys-directory "/var/named/dynamic";

        pid-file "/run/named/named.pid";

        session-keyfile "/run/named/session.key";

};

logging {

        channel default_debug {

                file "data/named.run";

                severity dynamic;

        };

};

zone "." IN {

        type hint;

        file "";

};

include "/etc/named.zones";

include "/etc/named.root.key";

[root@test1 ~]# cp -p /etc/named.rfc1912.zones /etc/named.zones

[root@test1 ~] vim /etc/named.zones

zone "localhost.localdomain" IN {

        type master;

        file "named.localhost";

        allow-update { none; };

};

zone "localhost" IN {

        type master;

        file "named.localhost";

        allow-update { none; };

};

zone "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {

        type master;

        file "named.loopback";

        allow-update { none; };

};

zone "1.0.0.127.in-addr.arpa" IN {

        type master;

        file "named.loopback";

        allow-update { none; };

};

zone "0.in-addr.arpa" IN {

        type master;

        file "named.empty";

        allow-update { none; };

};

zone "" IN {

        type master;

        file ".hosts";

};

zone "10.168.192.in-addr.arpa" IN {

        type master;

        file ".back";

};

[root@test1 ~]# named-checkconf

[root@test1 ~]# cp -p /var/named/named.localhost /var/named..hosts

[root@test1 named]# cp -p /var/named/named.localhost /var/named/.hosts

[root@test1 named]# ll

总用量 20

drwxr-x---. 7 root named   61 12月 7 19:59 chroot

drwxrwx---. 2 named named    6 10月 31 2018 data

-rw-r-----. 1 root named 152 6月 21 2007 .hosts

drwxrwx---. 2 named named    6 10月 31 2018 dynamic

-rw-r-----. 1 root named 2281 5月 22 2017

-rw-r-----. 1 root named 152 12月 15 2009 named.empty

-rw-r-----. 1 root named 152 6月 21 2007 named.localhost

-rw-r-----. 1 root named 168 12月 15 2009 named.loopback

drwxrwx---. 2 named named    6 10月 31 2018 slaves

[root@test1 named]# vim /var/named/.hosts

$TTL 1D

@       IN SOA @ root. (

                                        0       ; serial

                                        1D      ; refresh

                                        1H      ; retry

                                        1W      ; expire

                                        3H )    ; minimum

@       IN      NS      dns..

@       IN      MX 10 mail..

dns     IN      A       192.168.10.1

mail    IN      A       192.168.10.2

slave   IN      A       192.168.10.3

www     IN      A       192.168.10.4

ftp     IN      A       192.168.10.20

web     IN      CNAME   www..

[root@test1 named]# named-checkzone  /var/named/.hosts

zone /IN: loaded serial 0

OK

[root@test1 named]# cp -p /var/named/named.loopback /var/named/.back

[root@test1 named]# ll

总用量 24

drwxr-x---. 7 root named   61 12月 7 19:59 chroot

drwxrwx---. 2 named named    6 10月 31 2018 data

-rw-r-----. 1 root named 168 12月 15 2009 .back

-rw-r-----. 1 root named 235 12月 7 20:29 .hosts

drwxrwx---. 2 named named    6 10月 31 2018 dynamic

-rw-r-----. 1 root named 2281 5月 22 2017

-rw-r-----. 1 root named 152 12月 15 2009 named.empty

-rw-r-----. 1 root named 152 6月 21 2007 named.localhost

-rw-r-----. 1 root named 168 12月 15 2009 named.loopback

drwxrwx---. 2 named named    6 10月 31 2018 slaves

[root@test1 named]# vim /var/named/.back

$TTL 1D

@       IN SOA @ root.. (

                                        0       ; serial

                                        1D      ; refresh

                                        1H      ; retry

                                        1W      ; expire

                                        3H )    ; minimum

@       IN      NS      dns..

@       IN      MX   10 mail..

1       IN      PTR     dns..

2       IN      PTR     mail..

3       IN      PTR     slave..

4       IN      PTR     www..

20      IN      PTR     ftp..

[root@test1 named]# named-checkzone 10.168.192.in-addr.arpa /var/named/.back

zone 10.168.192.in-addr.arpa/IN: loaded serial 0

OK

[root@test1 named]# firewall-cmd --permanent --add-service=dns

success

[root@test1 named]# firewall-cmd --reload

success

[root@test1 named]# systemctl restart named

[root@test1 named]# systemctl enable named

Created symlink from /etc/systemd/system/multi-user.target.wants/named.service to /usr/lib/systemd/system/named.service.

[root@test1 ~]# nslookup www.

Server: 192.168.10.1

Address: 192.168.10.1#53

Name: www.

Address: 192.168.10.4

[root@test1 ~]# nslookup 192.168.10.4

Server: 192.168.10.1

Address: 192.168.10.1#53

4.10.168.192.in-addr.arpa name = www..

客户端

[root@test2 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33

TYPE=Ethernet

PROXY_METHOD=none

BROWSER_ONLY=no

BOOTPROTO=static

DEFROUTE=yes

IPV4_FAILURE_FATAL=no

IPV6INIT=yes

IPV6_AUTOCONF=yes

IPV6_DEFROUTE=yes

IPV6_FAILURE_FATAL=no

IPV6_ADDR_GEN_MODE=stable-privacy

NAME=ens33

UUID=eddf2609-55a9-469e-a884-88d05191a1f5

DEVICE=ens33

ONBOOT=yes

IPV6_PRIVACY=no

IPADDR=192.168.10.10

NETMASK=255.255.255.0

GATEWAY=192.168.10.254

DNS1=192.168.10.1

DNS2=192.168.10.2

[root@test2 ~]# systemctl restart network

[root@test2 ~]# ip add

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

       valid_lft forever preferred_lft forever

    inet6 ::1/128 scope host

       valid_lft forever preferred_lft forever

2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

    link/ether 00:0c:29:5c:fa:3d brd ff:ff:ff:ff:ff:ff

    inet 192.168.10.10/24 brd 192.168.10.255 scope global noprefixroute ens33

       valid_lft forever preferred_lft forever

    inet6 fe80::9c24:1afb:3d4:da7a/64 scope link tentative noprefixroute dadfailed

       valid_lft forever preferred_lft forever

    inet6 fe80::c76e:4a9c:6409:3844/64 scope link noprefixroute

       valid_lft forever preferred_lft forever

3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000

    link/ether 52:54:00:fb:ac:4d brd ff:ff:ff:ff:ff:ff

    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0

       valid_lft forever preferred_lft forever

4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000

    link/ether 52:54:00:fb:ac:4d brd ff:ff:ff:ff:ff:ff

[root@test2 ~]# vim /etc/resolv.conf

nameserver 192.168.10.1

nameserver 192.168.10.2

search

[root@test2 ~]# nslookup

> server

Default server: 192.168.10.1

Address: 192.168.10.1#53

Default server: 192.168.10.2

Address: 192.168.10.2#53

> www.

Server: 192.168.10.2

Address: 192.168.10.2#53

Non-authoritative answer:

www. canonical name = .

Name:

Address: 3.33.152.147

Name:

Address: 15.197.142.173

> 192.168.10.4

Server: 192.168.10.2

Address: 192.168.10.2#53

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Centos 7 配置DNS服务器步骤

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