Linux bind DNS配置
2016-01-13 00:00
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1,DNS服务 yum -y bind* cach
BIND 提供DNS服务
libnss_file.so
libnss_dns.so
系统调用这两个库文件来解析
配置文件在/etc/nsswitch.conf 根据这个配置文件的先后顺序来解析
. 根域
.com. / .cn. 顶级域
组织域：.com .org .net .cc
国家域：.cn .tw .hk .iq .ir .jp
反向域：IP-->FQDN
查询:
递归:只发出一次请求
迭代:发出多次请求
互联网查询 先递归,后迭代,
递归客户端,非递归客户端
主DNS服务器负责数据的修改
辅助DNS服务器负责数据的同步
nameserver 必须递归,因为需要直接需要答案
serial number 数据版本号
refresh 刷新时间
retry 重试时间
expire 过期时间,认为多长时间
nagative answer TTL 否定回答的緩存時間
缓存DNS服务器
转发器
数据库中的每一个条目就叫一个资源记录，资源记录必须有谁是DNS服务器，谁是mail服务器
资源记录格式：
资源记录类型：
SOA(Start Of Authority):起始授權記錄
時間單位：M(分鐘)‘H(小時)’D(天)‘W(週)，默認為秒
需要加优先级（0-99），数字越小级别越高，针对邮件服务器
查詢類型：
正向區域文件
反向區域文件
區域傳送：
完全區域傳送（第一次複製數據）axfr
增量區域傳送 ixfr
區域類型：
主區域：master
從區域：slave
提示區域：hint
轉發區域：forward
bind:
BIND進程的工作屬性
rndc：Remote Name Domain Controller
密鑰文件
配置信息：
區域數據文件
安裝後可以使其成為緩存服務器
DNS監聽的端口
啟動時使用
手動生成rndc.key
named.conf
DNS试图配置文档
named.conf
china_zz.vmware.xx.zone
china_cd.vmware.xx.zone
237.207.10.zone
主从区域传送时，必须在区域文件中指明辅助DNS的NS记录，才可以进行区域传送，如上所示；
rndc 远程管理DNS服务器
子域授权
DNS 视图定义；
linux bind DNS配置以下为所有之配置文件
named.conf
named.localhost 本地正向解析
named.loopback 本地反向解析
named.root 顶级域解析
rndc.conf
vmware.xx.zone 正向解析
10.207.237.zone 反向解析配置
10.207.238.zone 反向解析文件
BIND 提供DNS服务
libnss_file.so
libnss_dns.so
系统调用这两个库文件来解析
配置文件在/etc/nsswitch.conf 根据这个配置文件的先后顺序来解析
. 根域
.com. / .cn. 顶级域
组织域：.com .org .net .cc
国家域：.cn .tw .hk .iq .ir .jp
反向域：IP-->FQDN
查询:
递归:只发出一次请求
迭代:发出多次请求
互联网查询 先递归,后迭代,
递归客户端,非递归客户端
主DNS服务器负责数据的修改
辅助DNS服务器负责数据的同步
nameserver 必须递归,因为需要直接需要答案
serial number 数据版本号
refresh 刷新时间
retry 重试时间
expire 过期时间,认为多长时间
nagative answer TTL 否定回答的緩存時間
缓存DNS服务器
转发器
数据库中的每一个条目就叫一个资源记录，资源记录必须有谁是DNS服务器，谁是mail服务器
资源记录格式：
TTL 600 默认； NAMETTL(更新過期時間) IN() RRT(资源记录类型) VALUE(资源值) nginx.vmware.xx. IN A 1.1.1.1 vmware.xx. IN NS ns01.vmware.xx. ns01.vmware.xx. IN A 1.1.1.2 mail01.vmware.xx. IN A 1.1.1.1
资源记录类型：
SOA(Start Of Authority):起始授權記錄
ZONE NAME TTL IN SOA FQDN ADMINISTRATOR_MAILBOX( serial number refersh retry expire na ttl)
nginx.com.600 IN SOA ns1.vmware.xx. admin.vmware.xx.( 2015010501 1H 5M 1W 1D)
時間單位：M(分鐘)‘H(小時)’D(天)‘W(週)，默認為秒
MX(Mail eXchange):ZONE NAME -----> FQDN vmware.xx. IN MX 10 mail01.vmware.xx.
需要加优先级（0-99），数字越小级别越高，针对邮件服务器
NS(name Server) :DOMAIN NAME----->FQDN A(address):FQDN---->IP AAAA :FQDN---->ipv6 PTR(pointer)反向:IP----->FQDN 1.1.1.1 IN PTR nginx.vmware.xx. CNAME(Canonical Name):FQDN--->FQDN 別名記錄 www2.vmware.xx. IN CNAME www.vmware.xx.
查詢類型：
正向區域文件
vmware.xx. IN SOA
反向區域文件
0.168.192.in-addr.arpa. IN SOA 1.168.192.in-addr.arpa. IN www.vmware.xx. 2 IN nginx.vmware.xx.
區域傳送：
完全區域傳送（第一次複製數據）axfr
增量區域傳送 ixfr
區域類型：
主區域：master
從區域：slave
提示區域：hint
轉發區域：forward
bind:
/etc/named.conf
BIND進程的工作屬性
/etc/rndc.key
rndc：Remote Name Domain Controller
密鑰文件
配置信息：
/etc/rndc.conf /var/named/
區域數據文件
/etc/rc.d/init.d/named
{start|stop|restart|status|reload|configtest}yum info caching-nameserver
安裝後可以使其成為緩存服務器
DNS監聽的端口
53/udp 53/tcp 從服務器複製主服務器使用 953/tcp rndc
zone "localhost" IN {
type master;
file "named.localhost";
};
zone "0.0.127.in-addr.arpa" IN {
type master;
file "named.loopback";
};啟動時使用
rndc-confgen -r /dev/urandom > /etc/rndc.conf rndc-confgen -r /dev/urandom -a
手動生成rndc.key
dig > named.root dig -t RT NAME @DNSSERVER dig -t NS(A,NS,MX,PTR) vmware.xx dig -x IP 反向查詢 dig +recurse +trace -t A vmware.xx @10.207.237.110 dig -t axfr vmware.xx 完全区域传送 dig -t ixfr vmware.xx 增量区域传送
nslookup> server IP 設定DNS服務器 set q=RT(區域類型) NAME
named.conf
directory "/var/named"
recursion yes; 開啟递归查询，允许进行外面的用户递归查询；
allow-recursion { 10.207.237.0/24; };允许为10.207.237.网段的用户递归
allow-query { any; };允许那些用户进行查询；
allow-transfer { 10.207.237.112; }; 增加在zone区域中
allow-transfer { none; }; 不允许区域传送；
zone "."IN{
type hint;
file "named.ca";
};
zone "localhost"IN{
type master;
file "named.localhost";
all-transfer { none;};
};
zone "0.0.127.in-addr.arpa"IN{
type master;
file "named.loopback";
all-transfer { none;};
};
zone "vmware.xx" IN {
type master;
file "vmware.xx.zone";
allow-transfer { 10.207.237.110; };
};
zone "237.207.10.in-addr.arpa" IN {
type master;
file "237.207.10.zone";
allow-transfer { 10.207.237.110; };
};
acl china_zz {
10.207.237.0/24;
};
acl china_cd {
10.244.0.0/16;
};DNS试图配置文档
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";
allow-query { any; };
recursion yes;
notify yes;
};
logging {
channel query_log {
file "/var/log/named/query_log.log" versions 3 size 10M;
print-time yes;
print-severity yes;
print-category yes;
severity dynamic;
};
channel axfr_log {
file "/var/log/named/transfer_log.log" versions 5 size 10M;
print-time yes;
print-severity yes;
print-category yes;
severity dynamic;
};
category queries { query_log; };
category xfer-out { axfr_log; };
};
acl china_zz {
10.207.237.0/24;
};
acl china_cd {
10.244.0.0/16;
};
view china_zz{
match-clients { china_zz; };
zone "vmware.xx" IN {
type master;
file "china_zz.vmware.xx.zone";
allow-transfer { any; };
};
zone "207.10.in-addr.arpa" IN {
type master;
file "237.10.zone";
allow-transfer { 10.207.237.111; };
};
};
view china_cd{
match-clients { china_cd; };
zone "vmware.xx" IN {
type master;
file "china_cd.vmware.xx.zone";
allow-transfer { 10.207.237.111; };
};
zone "244.10.in-addr.arpa" IN {
type master;
file "244.10.zone";
allow-transfer { 10.207.237.111; };
};
};
view any{
match-clients { any; };
zone "vmware.xx" IN {
type master;
file "other.vmware.xx.zone";
allow-transfer { 10.207.237.111; };
};
zone "." IN {
type hint;
file "named.ca";
};
zone "localhost" IN {
type master;
file "named.localhost";
allow-transfer { none; };
};
zone "0.0.127.in-addr.arpa" IN {
type master;
file "named.loopback";
allow-transfer { none; };
};
};
#include "/etc/named.rfc1912.zones";china_zz.vmware.xx.zone
$TTL 600 @ IN SOA ns01.vmware.xx. admin.vmware.xx. ( 2015010701 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS ns01.vmware.xx. NS ns02.vmware.xx. MX 10 mail.vmware.xx. mail A 10.207.237.113 ns02 A 10.207.237.111 ns01 A 10.207.237.110 www A 10.207.237.112 www A 10.207.237.109
china_cd.vmware.xx.zone
$TTL 600 @ IN SOA ns01.vmware.xx. admin.vmware.xx. ( 2015010701 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS ns01.vmware.xx. NS ns02.vmware.xx. MX 10 mail.vmware.xx. mail A 10.207.237.113 ns01 A 10.207.237.110 ns02 A 10.207.237.111 www A 10.244.235.235 www A 10.244.235.236
237.207.10.zone
$TTL 600 @ IN SOA ns01.vmware.xx. admin.vmware.xx. ( 2015010701 ; serial 1D ; refresh 1H ; retry 1W ; expire 3H ) ; minimum NS ns01.vmware.xx. NS ns02.vmware.xx. 113 PTR mail.vmware.xx. 111 PTR ns02.vmware.xx. 110 PTR ns01.vmware.xx. 112 PTR www.vmware.xx. 109 PTR www.vmware.xx.
主从区域传送时，必须在区域文件中指明辅助DNS的NS记录，才可以进行区域传送，如上所示；
rndc 远程管理DNS服务器
子域授权
SUB_ZONE_NAMEINNSNSSERVER_SUB_ZONE_NAME NSSERVER_SUB_ZONE_NAME INA IP
DNS 视图定义；
viewchina_zz {
match-clients { china_zz; };
zone"vmware.xx" IN {
typemaster;
file"china_zz.vmware.xx.zone"
allow-transfer
};
};linux bind DNS配置以下为所有之配置文件
named.conf
options {
listen-on port 53 { any; };
directory "/usr/local/named/etc";
pid-file "/usr/local/named/var/run/named.pid";
dump-file "/usr/local/named/data/cache_dump.db";
statistics-file "/usr/local/named/data/named_stats.txt";
memstatistics-file "/usr/local/named/data/named_mem_stats.txt";
forwarders { 10.207.238.100; };
allow-query { any; };
recursion yes;
notify yes;
};
logging {
channel query_log {
file "/var/log/named/query_log.log" versions 3 size 10M;
print-time yes;
print-severity yes;
print-category yes;
severity dynamic;
};
channel axfr_log {
file "/var/log/named/transfer_log.log" versions 5 size 10M;
print-time yes;
print-severity yes;
print-category yes;
severity dynamic;
};
category queries { query_log; };
category xfer-out { axfr_log; };
};
zone "." IN {
type hint;
file "named.root";
};
zone "localhost" IN {
type master;
file "named.localhost";
allow-transfer { none; };
};
zone "0.0.127.in-addr.arpa" IN {
type master;
file "named.loopback";
allow-transfer { none; };
};
zone "vmware.xx" IN {
type master;
file "vmware.xx.zone";
allow-transfer { 10.207.237.200; };
};
zone "vmware.zz" {
type master;
database "mysqldb vmware sc 127.0.0.1 root cisco1989";
allow-transfer { 10.207.237.200; };
};
zone "237.207.10.in-addr.arpa" IN {
type master;
file "10.207.237.zone";
allow-transfer { 10.207.237.200; };
};
zone "238.207.10.in-addr.arpa" IN {
type master;
file "10.207.238.zone";
allow-transfer { 10.207.237.200; };
};
key "rndc-key" {
algorithm hmac-md5;
secret "PESyIEZ6P7LE6D1v0MFQBA==";
};
controls {
inet 127.0.0.1 port 953
allow { 127.0.0.1; } keys { "rndc-key"; };
};named.localhost 本地正向解析
$TTL 1D @ IN SOA @ rname.invalid. ( 0; serial 1D; refresh 1H; retry 1W; expire 3H ); minimum NS @ A 127.0.0.1 AAAA ::1
named.loopback 本地反向解析
$TTL 1D @ IN SOA @ rname.invalid. ( 0; serial 1D; refresh 1H; retry 1W; expire 3H ); minimum NS @ A 127.0.0.1 AAAA ::1 PTR localhost.
named.root 顶级域解析
; <<>> DiG 9.9.7 <<>> ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 56849 ;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 25 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4000 ;; QUESTION SECTION: ;. IN NS ;; ANSWER SECTION: . 11055 IN NS k.root-servers.net. . 11055 IN NS i.root-servers.net. . 11055 IN NS c.root-servers.net. . 11055 IN NS e.root-servers.net. . 11055 IN NS a.root-servers.net. . 11055 IN NS m.root-servers.net. . 11055 IN NS g.root-servers.net. . 11055 IN NS d.root-servers.net. . 11055 IN NS f.root-servers.net. . 11055 IN NS h.root-servers.net. . 11055 IN NS j.root-servers.net. . 11055 IN NS l.root-servers.net. . 11055 IN NS b.root-servers.net. ;; ADDITIONAL SECTION: k.root-servers.net. 8316 IN A 193.0.14.129 k.root-servers.net. 8978 IN AAAA 2001:7fd::1 i.root-servers.net. 8323 IN A 192.36.148.17 i.root-servers.net. 8244 IN AAAA 2001:7fe::53 c.root-servers.net. 8153 IN A 192.33.4.12 c.root-servers.net. 8422 IN AAAA 2001:500:2::c e.root-servers.net. 8253 IN A 192.203.230.10 a.root-servers.net. 14310 IN A 198.41.0.4 a.root-servers.net. 8316 IN AAAA 2001:503:ba3e::2:30 m.root-servers.net. 8323 IN A 202.12.27.33 m.root-servers.net. 9520 IN AAAA 2001:dc3::35 g.root-servers.net. 8253 IN A 192.112.36.4 d.root-servers.net. 8253 IN A 199.7.91.13 d.root-servers.net. 8258 IN AAAA 2001:500:2d::d f.root-servers.net. 8253 IN A 192.5.5.241 f.root-servers.net. 8275 IN AAAA 2001:500:2f::f h.root-servers.net. 8323 IN A 128.63.2.53 h.root-servers.net. 8623 IN AAAA 2001:500:1::803f:235 j.root-servers.net. 8323 IN A 192.58.128.30 j.root-servers.net. 8518 IN AAAA 2001:503:c27::2:30 l.root-servers.net. 8279 IN A 199.7.83.42 l.root-servers.net. 8244 IN AAAA 2001:500:3::42 b.root-servers.net. 8151 IN A 192.228.79.201 b.root-servers.net. 8153 IN AAAA 2001:500:84::b ;; Query time: 34 msec ;; SERVER: 10.191.131.131#53(10.191.131.131) ;; WHEN: Thu Apr 02 13:52:18 CST 2015 ;; MSG SIZE rcvd: 768
rndc.conf
# Start of rndc.conf
key "rndc-key" {
algorithm hmac-md5;
secret "PESyIEZ6P7LE6D1v0MFQBA==";
};
options {
default-key "rndc-key";
default-server 127.0.0.1;
default-port 953;
};
# End of rndc.conf
# Use with the following in named.conf, adjusting the allow list as needed:
# key "rndc-key" {
# algorithm hmac-md5;
# secret "PESyIEZ6P7LE6D1v0MFQBA==";
# };
#
# controls {
# inet 127.0.0.1 port 953
# allow { 127.0.0.1; } keys { "rndc-key"; };
# };
# End of rndc.confvmware.xx.zone 正向解析
$TTL 600 @ IN SOA ns01.vmware.xx. jason.cahng.vmware.xx. ( 2015040201; serial 1D; refresh 1H; retry 1W; expire 3H ); minimum NS ns01.vmware.xx. MX 10 mail.vmware.xx. A 10.207.237.122 mail A 10.207.238.199 nessus01 A 10.207.238.93 nessus02 A 10.207.238.94 nessus03 A 10.207.238.95 nessus04 A 10.207.238.96 symantec CNAM Email.vmware.xx. ns01 A 10.207.237.122 ubuntu A 10.207.237.124 rd A 10.207.237.123 nessus A 10.207.237.121
10.207.237.zone 反向解析配置
$TTL 600 @ IN SOA ns01.vmware.xx. jason.chang.vmware.xx. ( 2015040201; serial 1D; refresh 1H; retry 1W; expire 3H ); minimum NS ns01.vmware.xx. 122 PTR ns01.vmware.xx. 124 PTR ubuntu.vmware.xx. 123 PTR rd.vmware.xx. 121 PTR nessus.vmware.xx.
10.207.238.zone 反向解析文件
$TTL 600 @ IN SOA ns01.vmware.xx. jason.chang.vmware.xx. ( 2015040201; serial 1D; refresh 1H; retry 1W; expire 3H ); minimum NS ns01.vmware.xx. 122 PTR ns01.vmware.xx. 93 PTR nessus01.vmware.xx. 94 PTR nessus02.vmware.xx. 95 PTR nessus03.vmware.xx. 96 PTR nessus04.vmware.xx.
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