一、双网络智能解析域名

[root@test named]# vi /etc/named.conf
acl telecom {
        192.168.1.0/24;
        127.0.0.0/8;
};

options {
        directory       "/var/named";
        allow-recursion { telecom; };
};

view  telecom {
        match-clients { telecom; };
        zone "jacktest.com" IN {
                type master ;
                file "telecom.jacktest.com.zone";
        };
};

view  unicom {
        match-clients { any ; };    #any为上面telecom匹配不到则匹配,对外网络
        zone "jacktest.com" IN {
                type master ;
                file "unicom.jacktest.com.zone";
        };
};

[root@test named]# vi telecom.jacktest.com.zone

$TTL 43200
@       IN      SOA     ns1.jacktest.com.       admin.jacktest.com. (
                                2016122001
                                1H
                                10M
                                7D
                                1D )
                IN      NS      ns1
                IN      NS      mail
ns1             IN      A       192.168.1.3
mail            IN      A       192.168.1.12
www             IN      A       192.168.1.13
[root@test named]# named-checkconf  #查看是否有语法错误

[root@test named]# chgrp named telecom.jacktest.com.zone
[root@test named]# chmod 640 telecom.jacktest.com.zone
[root@test named]# cp -p telecom.jacktest.com.zone unicom.jacktest.com.zone
[root@test named]# ll
total 44
-rw-r----- 1 root  named  316 Dec 16 10:22 192.168.1.zone
drwxrwx--- 2 named named 4096 Dec 18 04:02 data
drwxrwx--- 2 named named 4096 Dec 13 14:58 dynamic
-rw-r----- 1 root  named  457 Dec 17 08:56 jacktest.com.zone
-rw-r----- 1 root  named 1892 Feb 18  2008 named.ca
-rw-r----- 1 root  named  152 Dec 15  2009 named.empty
-rw-r----- 1 root  named  152 Jun 21  2007 named.localhost
-rw-r----- 1 root  named  168 Dec 15  2009 named.loopback
drwxrwx--- 2 named named 4096 Dec 13 15:48 slaves
-rw-r----- 1 root  named  202 Dec 20 09:57 telecom.jacktest.com.zone
-rw-r----- 1 root  named  202 Dec 20 09:57 unicom.jacktest.com.zone
[root@test named]# vi unicom.jacktest.com.zone
[root@test named]# service named restart

$TTL 43200
@       IN      SOA     ns1.jacktest.com.       admin.jacktest.com. (
                                2016122001
                                1H
                                10M
                                7D
                                1D )
                IN      NS      ns1
                IN      NS      mail
ns1             IN      A       192.168.1.3
mail            IN      A       10.16.1.16
www             IN      A       10.16.1.17

验证:

[root@test named]# dig -t A www.jacktest.com @192.168.1.3

; <<>> DiG 9.7.0-P2-RedHat-9.7.0-21.P2.el5 <<>> -t A www.jacktest.com @192.168.1.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47766
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;www.jacktest.com.        IN    A

;; ANSWER SECTION:
www.jacktest.com.    43200    IN    A    192.168.1.13

;; AUTHORITY SECTION:
jacktest.com.        43200    IN    NS    ns1.jacktest.com.
jacktest.com.        43200    IN    NS    mail.jacktest.com.

;; ADDITIONAL SECTION:
ns1.jacktest.com.    43200    IN    A    192.168.1.3
mail.jacktest.com.    43200    IN    A    192.168.1.12

;; Query time: 1 msec
;; SERVER: 192.168.1.3#53(192.168.1.3)
;; WHEN: Tue Dec 20 10:01:25 2016
;; MSG SIZE  rcvd: 119

[root@test named]# dig -t A www.jacktest.com @110.19.131.209

; <<>> DiG 9.7.0-P2-RedHat-9.7.0-21.P2.el5 <<>> -t A www.jacktest.com @110.19.131.209
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50618
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;www.jacktest.com.        IN    A

;; ANSWER SECTION:
www.jacktest.com.    43200    IN    A    10.16.1.17

;; AUTHORITY SECTION:
jacktest.com.        43200    IN    NS    ns1.jacktest.com.
jacktest.com.        43200    IN    NS    mail.jacktest.com.

;; ADDITIONAL SECTION:
ns1.jacktest.com.    43200    IN    A    192.168.1.3
mail.jacktest.com.    43200    IN    A    10.16.1.16

;; Query time: 1 msec
;; SERVER: 110.19.131.209#53(110.19.131.209)
;; WHEN: Tue Dec 20 10:06:46 2016
;; MSG SIZE  rcvd: 119

C:\Users\Administrator>nslookup
預設伺服器:  ppp-wj-dc01.js.pcebg.com
Address:  110.19.131.3

> server 110.19.131.209
預設伺服器:  [110.19.131.209]
Address:  110.19.131.209

> set q=A
> www.jacktest.com
伺服器:  [110.19.131.209]
Address:  110.19.131.209

名稱:    www.jacktest.com
Address:  10.16.1.17

二、同时解析多个域名

[root@test named]# vim a.net.zone

$TTL 43200
@       IN      SOA     ns1.a.net.      admin.a.net. (
                        2016122001
                        1H
                        10M
                        3D
                        1D )
                IN      NS      ns1
ns1             IN      A       192.168.100.1
www             IN      A       192.168.100.100

[root@test named]# vi /etc/named.conf

acl telecom {
        192.168.1.0/24;
        127.0.0.0/8;
};

acl telecom {
        192.168.1.0/24;
        127.0.0.0/8;
};

options {
        directory       "/var/named";
        allow-recursion { telecom; };
};

view  telecom {
        match-clients { telecom; };
        zone "jacktest.com" IN {
                type master ;
                file "telecom.jacktest.com.zone";
        };
        zone "a.net" IN {
                type master;
                file "a.net.zone";
        };
};

view  unicom {
        match-clients { any ; };
        zone "jacktest.com" IN {
                type master ;
                file "unicom.jacktest.com.zone";
        };
        zone "a.net" IN {
                type master;
                file "a.net.zone";
        };
};

验证:

[root@test named]# dig -t A www.a.net @192.168.1.3
; <<>> DiG 9.7.0-P2-RedHat-9.7.0-21.P2.el5 <<>> -t A www.a.net @192.168.1.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34498
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;www.a.net.            IN    A

;; ANSWER SECTION:
www.a.net.        43200    IN    A    192.168.100.100

;; AUTHORITY SECTION:
a.net.            43200    IN    NS    ns1.a.net.

;; ADDITIONAL SECTION:
ns1.a.net.        43200    IN    A    192.168.100.1

;; Query time: 1 msec
;; SERVER: 192.168.1.3#53(192.168.1.3)
;; WHEN: Tue Dec 20 13:25:39 2016
;; MSG SIZE  rcvd: 77

C:\Users\Administrator>nslookup

> www.a.net
伺服器:  [10.109.131.209]
Address:  10.109.131.209

名稱:    www.a.net
Address:  192.168.100.100

[root@test named]# vi /etc/named.conf

options {
        directory       "/var/named";
        allow-recursion { telecom; };
        querylog yes;   #新增此行
};

[root@test named]# tail /var/log/messages
Dec 20 13:42:21 test named[21395]: command channel listening on 127.0.0.1#953
Dec 20 13:42:21 test named[21395]: zone jacktest.com/IN/telecom: loaded serial 2016122001
Dec 20 13:42:21 test named[21395]: zone a.net/IN/telecom: loaded serial 2016122001
Dec 20 13:42:21 test named[21395]: zone jacktest.com/IN/unicom: loaded serial 2016122001
Dec 20 13:42:21 test named[21395]: zone a.net/IN/unicom: loaded serial 2016122001
Dec 20 13:42:21 test named[21395]: running
Dec 20 13:42:21 test named[21395]: zone jacktest.com/IN/telecom: sending notifies (serial 2016122001)
Dec 20 13:42:21 test named[21395]: zone jacktest.com/IN/unicom: sending notifies (serial 2016122001)
Dec 20 13:43:13 test named[21395]: client 192.168.1.5#45743: view telecom: query: www.jacktest.com IN A + (192.168.1.3)
Dec 20 13:43:56 test named[21395]: client 192.168.1.5#39783: view telecom: query: www.a.net IN A + (192.168.1.3)

三、日志

logging {
        channel querylog {
                file "/var/log/named/bind_query.log"  versions 5 ;
                severity dynamic;
                print-time yes;
                print-severity yes;
                print-category yes;
        };
        category queries { querylog; };
};

[root@test named]# tail bind_query.log
20-Dec-2016 15:32:23.451 info: client 192.168.1.5#13891: view telecom: query: 1.168.192.in-addr.arpa IN SOA -E (192.168.1.3)
20-Dec-2016 15:39:40.682 info: client 192.168.1.5#10884: view telecom: query: 1.168.192.in-addr.arpa IN SOA -E (192.168.1.3)
20-Dec-2016 15:41:36.075 info: client 192.168.1.5#37186: view telecom: query: www.a.net IN A + (192.168.1.3)
20-Dec-2016 15:41:38.569 info: client 192.168.1.5#36758: view telecom: query: www.jacktest.com IN A + (192.168.1.3)
20-Dec-2016 15:45:36.840 info: client 192.168.1.5#52730: view telecom: query: www.a.net IN A + (192.168.1.3)
20-Dec-2016 15:45:39.035 info: client 192.168.1.5#39810: view telecom: query: www.jacktest.com IN A + (192.168.1.3)
20-Dec-2016 15:46:21.421 client 192.168.1.5#34619: view telecom: query: www.jacktest.com IN A + (192.168.1.3)
20-Dec-2016 15:46:28.241 client 192.168.1.5#59006: view telecom: query: www.a.net IN A + (192.168.1.3)

三、DNS传输日志

[root@test named]# vi /etc/named.conf

logging {
        channel query_log {
                file "/var/log/named/bind_query.log"  versions 5 ;
                severity dynamic;
                print-time yes;
        };
        channel xfer_log {
                file "/var/log/named/transfer.log"  versions 5 size 10k ;
                severity debug 3;
                print-time yes ;
        };

category queries { query_log; };
        category xfer-out { xfer_log; };

[root@jacktest ~]# dig -t  axfr jacktest.com @192.168.1.3

[root@test named]# pwd

/var/log/named
[root@test named]# ls
bind_query.log  bind_query.log.0  bind_query.log.1  transfer.log
[root@test named]# tail transfer.log
20-Dec-2016 16:04:09.827 client 192.168.1.5#43601: view telecom: transfer of 'jacktest.com/IN': AXFR started
20-Dec-2016 16:04:09.828 client 192.168.1.5#43601: view telecom: transfer of 'jacktest.com/IN': AXFR ended

四、查询压力测试

4.1. dnstop安装:

[root@test dnstop-20110502]# yum list all | grep curses
ncurses.i386              5.5-24.20060715       installed
ncurses-devel.i386      5.5-24.20060715     installed
[root@test dnstop-20110502]# yum list all | grep cap
libcap.i386      1.10-26       installed
libpcap.i386     14:0.9.4-14.el5    installed
libpcap-devel.i386     14:0.9.4-14.el5        installed
libtermcap.i386      2.0.8-46.1       installed     
mailcap.noarch     2.1.23-1.fc6        installed
termcap.noarch    1:5.5-1.20060701.1    installed

4.2. bind-9.7.4安装:

[root@test ~]# tar xf bind-9.7.4.tar.gz
[root@test ~]# cd bind-9.7.4
[root@test bind-9.7.4]# cd contrib/
[root@test contrib]# ls
dbus  dlz  idn  linux  named-bootconf  nanny  nslint-2.1a3  pkcs11-keygen  query-loc-0.4.0  queryperf  sdb  zkt
[root@test contrib]# cd queryperf/
[root@test queryperf]# ls
config.h.in  configure  configure.in  input  Makefile.in  missing  queryperf.c  README  utils
[root@test queryperf]# yum install make gcc
Package 1:make-3.81-3.el5.i386 already installed and latest version
Package gcc-4.1.2-46.el5.i386 already installed and latest version
Nothing to do
[root@test queryperf]# ./configure
 [root@test queryperf]# make
gcc  -DHAVE_CONFIG_H -c queryperf.c
gcc  -DHAVE_CONFIG_H  queryperf.o  -lnsl -lresolv  -lm -o queryperf
[root@test queryperf]# ls
config.h     config.log     configure     input     Makefile.in  queryperf    queryperf.o  utils
config.h.in  config.status  configure.in  Makefile  missing      queryperf.c  README
[root@test queryperf]# cp queryperf /bin/
[root@test queryperf]# queryperf -h

[root@test ~]# vi test.txt
www.jacktest.com A
jacktest.com NS
jacktest.com MX
mail.jacktest.com A
ns1.jacktest.com A
haha.jacktest.com A
imap.jacktest.com A

4.3. 查询压力测试

[root@test ~]# queryperf -d test.txt -s 192.168.1.3

DNS Query Performance Testing Tool
Version: $Id: queryperf.c,v 1.12 2007-09-05 07:36:04 marka Exp $
[Status] Processing input data
[Status] Sending queries (beginning with 192.168.1.3)
[Status] Testing complete
Statistics:
  Parse input file:     once
  Ended due to:         reaching end of file
  Queries sent:         22464 queries
  Queries completed:    22464 queries
  Queries lost:         0 queries
  Queries delayed(?):   0 queries
  RTT max:             0.009905 sec
  RTT min:              0.000960 sec
  RTT average:          0.002667 sec
  RTT std deviation:    0.000483 sec
  RTT out of range:     0 queries
  Percentage completed: 100.00%
  Percentage lost:        0.00%
  Started at:           Wed Dec 21 14:36:23 2016
  Finished at:          Wed Dec 21 14:36:26 2016
  Ran for:              3.026632 seconds
  Queries per second:   7422.111443 qps

附:

bind-9.7.4下载地址:  http://ftp.lip6.fr/pub/networking/dns/bind/9.7.4/

dnstop下载地址:  http://dns.measurement-factory.com/tools/dnstop/src/

---end---

转载于:https://blog.51cto.com/wangfx/1884755

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