Tom*_*nor 4 domain-name-system powerdns
请允许我先设置场景。
我们曾经使用 Bind9,但放弃了它而转而使用 PowerDNS,因为坦率地说,Bind 很糟糕。
我们的 DNS 主机中有一个“主要”区域。 london.wibblesplat.com
还有其他区,oob.london.wibblesplat.com
非 oob 区域中的大多数地址都在192.168.0.0/16.
dns-1 服务器的 IP范围内192.168.123.140
。(我不确定这是否相关)。
我想向范围内的 oob.london.wibblesplat.com 区域添加一些带外 (oob) 访问 IP 172.16.254.0/24
这就是驱动 powerdns 的数据库中的内容。
powerdns=# select * from records where name like '%switch%';
id | domain_id | name | type | content | ttl | prio | change_date | ordername | auth
--------+-----------+----------------------------------------------------+------+---------------+------+------+-------------+-----------+------
190709 | 24 | renderchassis-1-switch-A1.london.wibblesplat.com | A | 172.16.254.12 | 3600 | 0 | 1328715923 | |
190710 | 24 | renderchassis-1-switch-A2.london.wibblesplat.com | A | 172.16.254.3 | 3600 | 0 | 1328715923 | |
190711 | 24 | renderchassis-2-switch-A1.london.wibblesplat.com | A | 172.16.254.2 | 3600 | 0 | 1328715923 | |
190712 | 24 | renderchassis-2-switch-A2.london.wibblesplat.com | A | 172.16.254.13 | 3600 | 0 | 1328715923 | |
(4 rows)
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挖就是这么说的。
tom.oconnor@charcoal-black:~$ dig renderchassis-1-switch-A1 +search
; <<>> DiG 9.7.0-P1 <<>> renderchassis-1-switch-A1 +search
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28586
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;renderchassis-1-switch-A1.london.wibblesplat.com. IN A
;; AUTHORITY SECTION:
london.wibblesplat.com. 1800 IN SOA dns1.london.wibblesplat.com. hostmaster.london.wibblesplat.com. 2012020803 28800 7200 604800 86400
;; Query time: 2 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb 8 15:58:53 2012
;; MSG SIZE rcvd: 120
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为什么 PowerDNS 不提供记录服务?它存在。查询应该没问题。如果 A 记录不在服务器可以访问的子网中,那么区域未提供服务是否有什么奇怪的地方?(我认为这是对的,如果我想(出于任何原因)重新发布 8.8.8.8 或其他版本的 A 记录怎么办)。
有什么想法吗?
编辑:
情节变厚了。出于兴趣,我删除了旧唱片,并添加了一些新的、较短的唱片。
powerdns=# select * from records where name like '%rc1sw%' or content like '%rc1sw%';
id | domain_id | name | type | content | ttl | prio | change_date | ordername | auth
--------+-----------+-----------------------------+------+---------------+------+------+-------------+-----------+------
190810 | 23 | rc1sw1.london.wibblesplat.com | A | 172.16.254.12 | 3600 | 0 | 1328720986 | |
190811 | 23 | rc1sw2.london.wibblesplat.com | A | 172.16.254.3 | 3600 | 0 | 1328720999 |
|
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现在.. tom.oconnor@charcoal-black:~$ dig rc1sw1 +search
; <<>> DiG 9.7.0-P1 <<>> rc1sw1 +search
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32849
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;rc1sw1.london.wibblesplat.com. IN A
;; ANSWER SECTION:
rc1sw1.london.wibblesplat.com. 3600 IN A 172.16.254.12
;; Query time: 0 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb 8 17:10:35 2012
;; MSG SIZE rcvd: 61
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它有效。
似乎 Powerdns 可能不喜欢-
名称中的这么多字符。我会牢记这一点,然后继续。不过,答案可能很好。
好吧,它不喜欢 -A1。
看看这个。
powerdns=# select * from records order by id desc limit 5;
id | domain_id | name | type | content | ttl | prio | change_date | ordername | auth
--------+-----------+---------------------------------+------+---------------------------------+------+------+-------------+-----------+------
190830 | 23 | bunt-1-A1.london.wibblesplat.com | A | 127.0.0.1 | 120 | 0 | 1328722058 | |
190829 | 22 | 80.124.168.192.in-addr.arpa. | PTR | claret-red.london.wibblesplat.com | 3600 | 0 | 1328722007 | |
190828 | 23 | claret-red.london.wibblesplat.com | A | 192.168.124.80 | 3600 | 0 | 1328722007 | |
190825 | 23 | BUNT.london.wibblesplat.com | A | 127.0.0.1 | 120 | 0 | 1328721975 | |
190824 | 23 | bunt.london.wibblesplat.com | A | 127.0.0.1 | 120 | 0 | 1328721967 |
|
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和
tom.oconnor@charcoal-black:~$ dig bunt +search
; <<>> DiG 9.7.0-P1 <<>> bunt +search
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34027
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;bunt.london.wibblesplat.com. IN A
;; ANSWER SECTION:
bunt.london.wibblesplat.com. 120 IN A 127.0.0.1
;; Query time: 1 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb 8 17:27:15 2012
;; MSG SIZE rcvd: 59
tom.oconnor@charcoal-black:~$ dig BUNT +search
; <<>> DiG 9.7.0-P1 <<>> BUNT +search
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60125
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;BUNT.london.wibblesplat.com. IN A
;; ANSWER SECTION:
BUNT.london.wibblesplat.com. 120 IN A 127.0.0.1
;; Query time: 0 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb 8 17:27:20 2012
;; MSG SIZE rcvd: 59
tom.oconnor@charcoal-black:~$ dig bunt-1-A1 +search
; <<>> DiG 9.7.0-P1 <<>> bunt-1-A1 +search
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 22009
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
; ; QUESTION SECTION:
;bunt-1-A1. IN A
;; AUTHORITY SECTION:
. 1800 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2012020801 1800 900 604800 86400
;; Query time: 59 msec
;; SERVER: 192.168.123.140#53(192.168.123.140)
;; WHEN: Wed Feb 8 17:27:53 2012
;; MSG SIZE rcvd: 102
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