centos7安装bind（DNS服务）

环境介绍

公网IP：149.129.92.239

内网IP：172.17.56.249

系统：CentOS 7.4

一、安装


1	`yum` `install` `bind bind-utils -y`

二、修改bind配置文件

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 vim /``etc``/``named.conf options { listen``-``on port 53 { any``; }; #监听任何ip对53端口的请求 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``; }; #接收任何来源查询dns记录 /``* - If you are building an AUTHORITATIVE DNS server, do NOT enable recursion. - If you are building a RECURSIVE (caching) DNS server, you need to enable recursion. - If your recursive DNS server has a public IP address, you MUST enable access control to limit queries to your legitimate users. Failing to do so will cause your server to become part of large scale DNS amplification attacks. Implementing BCP38 within your network would greatly reduce such attack surface *``/ recursion yes; dnssec``-``enable yes; dnssec``-``validation yes; /``* 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 "named.ca"``; }; #增加一个a.com域名的解析，具体解析规则在/var/named/a.com.zone里 zone "a.com" IN { type master; file "a.com.zone"``; }; #增加一个反向解析，即根据ip查域名（不需要的话可以不设置） zone "56.17.172.in-addr.arpa" IN { type master; file "172.17.56.zone"``; }; include "/etc/named.rfc1912.zones"``; include "/etc/named.root.key"``;


1<br><br>2<br><br>3<br><br>4<br><br>5<br><br>6<br><br>7<br><br>8<br><br>9<br><br>10<br><br>11<br><br>12<br><br>13<br><br>14<br><br>15<br><br>16<br><br>17<br><br>18<br><br>19<br><br>20<br><br>21<br><br>22<br><br>23<br><br>24<br><br>25<br><br>26<br><br>27<br><br>28<br><br>29<br><br>30<br><br>31<br><br>32<br><br>33<br><br>34<br><br>35<br><br>36<br><br>37<br><br>38<br><br>39<br><br>40<br><br>41<br><br>42<br><br>43<br><br>44<br><br>45<br><br>46<br><br>47<br><br>48<br><br>49<br><br>50<br><br>51<br><br>52<br><br>53<br><br>54<br><br>55<br><br>56<br><br>57<br><br>58<br><br>59<br><br>60<br><br>61<br><br>62<br><br>63	`vim` /``etc``/``named.conf<br><br>`options {`<br><br> listen``-``on port `53` `{` any``; }; `#监听任何ip对53端口的请求`<br><br> listen``-``on``-``v6 port `53` { ::``1``; };<br><br> `directory` "/var/named"``;<br><br> dump``-``file "/var/named/data/cache_dump.db"``;<br><br> statistics``-``file "/var/named/data/named_stats.txt"``;<br><br> memstatistics``-``file "/var/named/data/named_mem_stats.txt"``;<br><br> recursing``-``file "/var/named/data/named.recursing"``;<br><br> secroots``-``file "/var/named/data/named.secroots"``;<br><br> allow``-``query { any``; }; `#接收任何来源查询dns记录`<br><br> /``<br><br> `-` `If you are building an AUTHORITATIVE DNS server, do NOT enable recursion.`<br><br> `-` `If you are building a RECURSIVE (caching) DNS server, you need to enable`<br><br> `recursion.`<br><br> `-` `If your recursive DNS server has a public IP address, you MUST enable access`<br><br> `control to limit queries to your legitimate users. Failing to do so will`<br><br> `cause your server to become part of large scale DNS amplification`<br><br> `attacks. Implementing BCP38 within your network would greatly`<br><br> `reduce` `such attack surface`<br><br> ``/<br><br> `recursion yes;`<br><br> dnssec``-``enable yes;<br><br> dnssec``-``validation yes;<br><br> /``* `Path to ISC DLV key` *``/<br><br> bindkeys``-``file "/etc/named.iscdlv.key"``;<br><br> managed``-``keys``-``directory "/var/named/dynamic"``;<br><br> pid``-``file "/run/named/named.pid"``;<br><br> session``-``keyfile "/run/named/session.key"``;<br><br>`};`<br><br>`logging {`<br><br> `channel default_debug {`<br><br> `file` "data/named.run"``;<br><br> `severity dynamic;`<br><br> `};`<br><br>`};`<br><br>`zone` `"."` `IN {`<br><br> `type` `hint;`<br><br> `file` "named.ca"``;<br><br>`};`<br><br>`#增加一个a.com域名的解析，具体解析规则在/var/named/a.com.zone里`<br><br>`zone` `"a.com"` `IN {`<br><br> `type` `master;`<br><br> `file` "a.com.zone"``;<br><br>`};`<br><br>`#增加一个反向解析，即根据ip查域名（不需要的话可以不设置）`<br><br>`zone` `"56.17.172.in-addr.arpa"` `IN {`<br><br> `type` `master;`<br><br> `file` "172.17.56.zone"``;<br><br>`};`<br><br>`include` "/etc/named.rfc1912.zones"``;<br><br>`include` "/etc/named.root.key"``;

三、配置解析文件


1<br><br>2<br><br>3<br><br>4<br><br>5<br><br>6<br><br>7<br><br>8<br><br>9<br><br>10<br><br>11<br><br>12<br><br>13<br><br>14<br><br>15<br><br>16<br><br>17<br><br>18<br><br>19<br><br>20<br><br>21<br><br>22<br><br>23<br><br>24<br><br>25<br><br>26<br><br>27	[root@izj6c1w3z30pendgik4p4vz ~]``# cat /var/named/a.com.zone<br><br>`$TTL 1D`<br><br>`@ IN SOA @ root.a.com. (`<br><br> `0 ; serial`<br><br> `1D ; refresh`<br><br> `1H ; retry`<br><br> `1W ; expire`<br><br> `3H ) ; minimum`<br><br> `NS @`<br><br> `A 172.17.56.249 ;a.com的ip为172.17.56.249`<br><br>`www A 172.17.56.249 ;www.a.com的ip解析为172.17.56.249` <br><br>`@ MX 10 mx.a.com. ;a.com的mx记录为mx.a.com`<br><br> `AAAA ::1`<br><br>[root@izj6c1w3z30pendgik4p4vz ~]``# cat /var/named/172.17.56.zone<br><br>`$TTL 86400`<br><br>`@ IN SOA localhost a.com. (`<br><br> `2014031101`<br><br> `2H`<br><br> `10M`<br><br> `7D`<br><br> `1D )`<br><br> `IN NS localhost.`<br><br>`249 IN PTR a.com ;172.17.56.249查询后得到的域名是a.com`<br><br>`249 IN PTR www.a.com. ;172.17.56.249查询后得到的域名是www.a.com`

四、启动bind


1	`systemctl start named`

五、测试

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 1、修改dns配置``/etc/resolv``.conf [root@izj6c1w3z30pendgik4p4vz ~]``# cat /etc/resolv.conf options timeout:2 attempts:3 rotate single-request-reopen nameserver 172.17.56.249 2、解析测试 [root@izj6c1w3z30pendgik4p4vz ~]``# ping a.com -c 2 PING a.com (172.17.56.249) 56(84) bytes of data. 64 bytes from a.com.56.17.172.``in``-addr.arpa (172.17.56.249): icmp_seq=1 ttl=64 time``=0.016 ms 64 bytes from a.com.56.17.172.``in``-addr.arpa (172.17.56.249): icmp_seq=2 ttl=64 time``=0.048 ms --- a.com ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1000ms rtt min``/avg/max/mdev = 0.016``/0``.032``/0``.048``/0``.016 ms [root@izj6c1w3z30pendgik4p4vz ~]``# ping www.a.com -c 2 PING www.a.com (172.17.56.249) 56(84) bytes of data. 64 bytes from www.a.com (172.17.56.249): icmp_seq=1 ttl=64 time``=0.019 ms 64 bytes from www.a.com (172.17.56.249): icmp_seq=2 ttl=64 time``=0.052 ms --- www.a.com ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 999ms rtt min``/avg/max/mdev = 0.019``/0``.035``/0``.052``/0``.017 ms [root@izj6c1w3z30pendgik4p4vz ~]``# nslookup a.com Server: 172.17.56.249 Address: 172.17.56.249``#53 Name: a.com Address: 172.17.56.249 [root@izj6c1w3z30pendgik4p4vz ~]``# dig www.a.com ; <<>> DiG 9.9.4-RedHat-9.9.4-73.el7_6 <<>> www.a.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id``: 56816 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 3 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.a.com. IN A ;; ANSWER SECTION: www.a.com. 86400 IN A 172.17.56.249 ;; AUTHORITY SECTION: a.com. 86400 IN NS a.com. ;; ADDITIONAL SECTION: a.com. 86400 IN A 172.17.56.249 a.com. 86400 IN AAAA ::1 ;; Query time``: 0 msec ;; SERVER: 172.17.56.249``#53(172.17.56.249) ;; WHEN: Wed Jun 05 09:58:34 CST 2019 ;; MSG SIZE rcvd: 112


1<br><br>2<br><br>3<br><br>4<br><br>5<br><br>6<br><br>7<br><br>8<br><br>9<br><br>10<br><br>11<br><br>12<br><br>13<br><br>14<br><br>15<br><br>16<br><br>17<br><br>18<br><br>19<br><br>20<br><br>21<br><br>22<br><br>23<br><br>24<br><br>25<br><br>26<br><br>27<br><br>28<br><br>29<br><br>30<br><br>31<br><br>32<br><br>33<br><br>34<br><br>35<br><br>36<br><br>37<br><br>38<br><br>39<br><br>40<br><br>41<br><br>42<br><br>43<br><br>44<br><br>45<br><br>46<br><br>47<br><br>48<br><br>49<br><br>50<br><br>51<br><br>52<br><br>53<br><br>54<br><br>55<br><br>56	1、修改dns配置``/etc/resolv``.conf<br><br>[root@izj6c1w3z30pendgik4p4vz ~]``# cat /etc/resolv.conf<br><br>`options timeout:2 attempts:3 rotate single-request-reopen`<br><br>`nameserver 172.17.56.249`<br><br>`2、解析测试`<br><br>[root@izj6c1w3z30pendgik4p4vz ~]``# ping a.com -c 2<br><br>`PING a.com (172.17.56.249) 56(84) bytes of data.`<br><br>64 bytes from a.com.56.17.172.``in``-addr.arpa (172.17.56.249): icmp_seq=1 ttl=64 time``=0.016 ms<br><br>64 bytes from a.com.56.17.172.``in``-addr.arpa (172.17.56.249): icmp_seq=2 ttl=64 time``=0.048 ms<br><br>`--- a.com` `ping` `statistics ---`<br><br>`2 packets transmitted, 2 received, 0% packet loss,` `time` `1000ms`<br><br>rtt min``/avg/max/mdev = 0.016``/0``.032``/0``.048``/0``.016 ms<br><br>[root@izj6c1w3z30pendgik4p4vz ~]``# ping www.a.com -c 2<br><br>`PING www.a.com (172.17.56.249) 56(84) bytes of data.`<br><br>`64 bytes from www.a.com (172.17.56.249): icmp_seq=1 ttl=64` time``=0.019 ms<br><br>`64 bytes from www.a.com (172.17.56.249): icmp_seq=2 ttl=64` time``=0.052 ms<br><br>`--- www.a.com` `ping` `statistics ---`<br><br>`2 packets transmitted, 2 received, 0% packet loss,` `time` `999ms`<br><br>rtt min``/avg/max/mdev = 0.019``/0``.035``/0``.052``/0``.017 ms<br><br>[root@izj6c1w3z30pendgik4p4vz ~]``# nslookup a.com<br><br>`Server: 172.17.56.249`<br><br>Address: 172.17.56.249``#53<br><br>`Name: a.com`<br><br>`Address: 172.17.56.249`<br><br>[root@izj6c1w3z30pendgik4p4vz ~]``# dig www.a.com<br><br>`; <<>> DiG 9.9.4-RedHat-9.9.4-73.el7_6 <<>> www.a.com`<br><br>`;; global options: +cmd`<br><br>`;; Got answer:`<br><br>`;; ->>HEADER<<- opcode: QUERY, status: NOERROR,` id``: 56816<br><br>`;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 3`<br><br>`;; OPT PSEUDOSECTION:`<br><br>`; EDNS: version: 0, flags:; udp: 4096`<br><br>`;; QUESTION SECTION:`<br><br>`;www.a.com. IN A`<br><br>`;; ANSWER SECTION:`<br><br>`www.a.com. 86400 IN A 172.17.56.249`<br><br>`;; AUTHORITY SECTION:`<br><br>`a.com. 86400 IN NS a.com.`<br><br>`;; ADDITIONAL SECTION:`<br><br>`a.com. 86400 IN A 172.17.56.249`<br><br>`a.com. 86400 IN AAAA ::1`<br><br>`;; Query` time``: 0 msec<br><br>;; SERVER: 172.17.56.249``#53(172.17.56.249)<br><br>`;; WHEN: Wed Jun 05 09:58:34 CST 2019`<br><br>`;; MSG SIZE rcvd: 112`