辅DNS为什么不能更新

網中人

Jul 10 07:17:52.670 xfer-out: info: client 10.1.2.43#32776: transfer of '2.1.10.in-addr.arpa/IN': AXFR-style IXFR started

看到上面那行, 那你就可以肯定了.

朽木可雕

谢谢各位的耐心相助。我现在才明白，也许从一开始MASTER和SLAVE的同步就是好的。只是我一直以为，修改了区域文件以后不需要重启或rndc reload他们自己就会同步。真是不好意思，由于我的无知给大家添了那么多麻烦，向各位道歉了。

realfox

晕

你不重启，即使你怎么改配置文件，主服务器不会知道有更改，从服务器更无从知道。

当然，人总是要慢慢前进的，这也很正常。
问题解决了就好。

阿骁

呵呵呵呵。。。。  

看了那么老长的帖子和回复，居然是这样的结果！晕倒！
不过新手是这样慢慢进步的！呵呵。。。

朽木可雕

让各位见笑了，不好意思。刚刚接触DNS。

perryhg

实只要看看bind的文档，里面说得很清楚

1. acl slave_servers { 192.168.0.2;192.168.0.3; };
   
2. 
   
3. zone "mydomain.com" {
   
4.         type master;
   
5.         file "mydomain.com.zone";
   
6.         notify yes;
   
7.         allow-transfer { slave_servers; };
   
8.         also-notify { slave_servers; };
   
9. };

复制代码

6.2.14.1
notify
If yes (the default), DNS NOTIFY messages are sent when a zone the server is authoritative for
changes, see Section 3.3. The messages are sent to the servers listed in the zone’s NS records
(except the master server identified in the SOA MNAME field), and to any servers listed in the
also-notify option.
If explicit, notifies are sent only to servers explicitly listed using also-notify. If no, no notifies
are sent.
The notify option may also be specified in the zone statement, in which case it overrides the options
notify statement. It would only be necessary to turn off this option if it caused slaves to crash.

6.2.14.6
also-notify
Defines a global list of IP addresses of name servers that are also sent NOTIFY messages whenever
a fresh copy of the zone is loaded, in addition to the servers listed in the zone’s NS records. This
helps to ensure that copies of the zones will quickly converge on stealth servers. If an also-notify
list is given in a zone statement, it will override the options also-notify statement. When a zone
notify statement is set to no, the IP addresses in the global also-notify list will not be sent NOTIFY
messages for that zone. The default is the empty list (no global notification list).

使用notify指令会自动通知所有这个域的所有在ns记录上的机器，also-notify指令可以用来通知所有不在ns记录上的dns服务器。
还是好好看文档吧，里面还有很多有趣的功能呢。

linux_admin

帖子都沉了 四年了啊 被我发现了。o(∩_∩)o...
刚开始区域配置文件里只有一条ns记录 重新启动named服务时 竟然能够同步成功？