Ubuntu10.04 bind9 configuration Master/Slave zone data transmission problems

When configuring DNS master-slave zone data transfer on ubuntu10.04 today, the slave server cannot learn the configuration of the master server. When viewing/var/log/messages

Aug 1 06:42:45 Ubuntu kernel: [5397.159601] type = 1503 audit (1406900565.661: 37 ): operation = "mknod" pid = 2351 parent = 1 profile = "/usr/sbin/named" requested_mask = "C:" denied_mask = "C :: "fsuid = 121 ouid = 121 name ="/etc/bind/slaves/tmp-Gyllksio7F"

Confused ....

Display when viewing/var/log/syslog

Aug 1 06:45:47 Ubuntu named [2350]: Reloading configuration succeeded
Aug 1 06:45:47 Ubuntu named [2350]: Any newly configured zones are now loaded
Aug 1 06:45:47 Ubuntu named [2350]: Zone langbing.com/in: Transfer started.
Aug 1 06:45:47 Ubuntu named [2350]: transfer of 'langbing. com/in' from 192.168.1.103 #53: connected using 192.168.1.104 #35568
Aug 1 06:45:47 Ubuntu named [2350]: dumping master file:/etc/bind/slaves/tmp-ckgypeoets: open: Permission denied
Aug 1 06:45:47 Ubuntu named [2350]: transfer of 'langbing. com/in' from 192.168.1.103 #53: failed while loading responses: Permission denied
Aug 1 06:45:47 Ubuntu named [2350]: transfer of 'langbing. COM/In 'from 192.168.1.103 #53: transfer completed: 0 messages, 7 records, 0 bytes, 0.009 secs (0 bytes/sec)

It turns out to be a permission issue.

But the directory has been given writable permissions, but is still told not to write permissions, online to find a blog (http://blog.sina.com.cn/s/blog_541a3cf10101c70b.html) the original write directory is protected by the apparmor Service (I don't know what it is ...), You must add the write permission to the directory in the/etc/apparmor. d/usr. sbin. Named directory.

/Etc/bind/Slave/** RW, /Etc/bind/Slave/RW,
Restart apparmor service/etc/init. d/apparmor restart
Run rndc reconfig to display Aug 1 06:49:28 Ubuntu named [2559]: Reloading configuration succeeded
Aug 1 06:49:28 Ubuntu named [2559]: Any newly configured zones are now loaded
Aug 1 06:49:28 Ubuntu named [2559]: Zone langbing.com/in: Transfer started.
Aug 1 06:49:28 Ubuntu named [2559]: transfer of 'langbing. com/in' from 192.168.1.103 #53: connected using 192.168.1.104 #45509
Aug 1 06:49:28 Ubuntu named [2559]: Zone langbing.com/in: transferred serial 10
Aug 1 06:49:28 Ubuntu named [2559]: transfer of 'langbing. COM/In 'from 192.168.1.103 #53: transfer completed: 1 messages, 7 records, 203 bytes, 0.052 secs (3903 Bytes/sec)
Aug 1 06:49:28 Ubuntu named [2559]: Zone langbing.com/in: sending notifies (serial 10)


OK...