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<p class=MsoNormal>We have a BIND DNS master and Windows DNS slave running for
a while. I recently configured a second DNS slave running on Linux/Centos. When
I stop/start the second DNS slave. It gets all zone files correctly. However, it
does not get update when I make a zone file modification and increased the sn
on the master. The odd thing is, I don’t see any xfer-out log in the
master(I do see the xfer-out log for the windows DNS slave, though). Googling around
and search BIND maillist archive does not get much clue either… any hint
is greatly appreciated.. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>BIND MASTER(bind-9.3.1-20.FC4): <o:p></o:p></p>
<p class=MsoNormal>============================<o:p></o:p></p>
<p class=MsoNormal>options
{
#
this section sets the default options<o:p></o:p></p>
<p class=MsoNormal> directory
"/var/named";
# directory where the zone files will reside<o:p></o:p></p>
<p class=MsoNormal> listen-on {<o:p></o:p></p>
<p class=MsoNormal>
A.A.A.A; #
public IP address of the local interface to listen<o:p></o:p></p>
<p class=MsoNormal>
192.168.100.204;
# private IP address of the local interface to listen<o:p></o:p></p>
<p class=MsoNormal>
192.168.101.204;<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal> auth-nxdomain
no;
# conform to RFC1035<o:p></o:p></p>
<p class=MsoNormal> notify
yes;
#
enable AA notifies<o:p></o:p></p>
<p class=MsoNormal> allow-notify {
none; };<o:p></o:p></p>
<p class=MsoNormal> allow-query {
any;
};
# allow anyone to issue queries<o:p></o:p></p>
<p class=MsoNormal> recursion
no;
#
disallow recursive queries unless over-ridden below<o:p></o:p></p>
<p class=MsoNormal> version
"0";
#
obscures version reporting - can't hurt<o:p></o:p></p>
<p class=MsoNormal> zone-statistics
yes;<o:p></o:p></p>
<p class=MsoNormal> statistics-file
"/var/named/statistics/named_stats.txt";<o:p></o:p></p>
<p class=MsoNormal>};<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>logging{<o:p></o:p></p>
<p class=MsoNormal> channel simple_log {<o:p></o:p></p>
<p class=MsoNormal> file "log/bind.log" versions 3
size 50m;<o:p></o:p></p>
<p class=MsoNormal> severity info;<o:p></o:p></p>
<p class=MsoNormal> print-time yes;<o:p></o:p></p>
<p class=MsoNormal> print-severity yes;<o:p></o:p></p>
<p class=MsoNormal> print-category yes;<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal> category default{<o:p></o:p></p>
<p class=MsoNormal> simple_log;<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal>};<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>view "office" {<o:p></o:p></p>
<p class=MsoNormal> match-clients {
office_networks; }; # match hosts in acl
"office_networks" above<o:p></o:p></p>
<p class=MsoNormal> recursion
yes;
# allow recursive queries<o:p></o:p></p>
<p class=MsoNormal> notify-source *
port 53;<o:p></o:p></p>
<p class=MsoNormal> allow-transfer { B.B.B.0/24;
C.C.C.0/24};<o:p></o:p></p>
<p class=MsoNormal> also-notify {<o:p></o:p></p>
<p class=MsoNormal>
B.B.B.B;
#
public IP of first DNS slave(windows DNS)<o:p></o:p></p>
<p class=MsoNormal>
C.C.C.C;
#
public IP of second DNS slave(Linux BIND DNS)<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal> zone "mydomain.com"
in {<o:p></o:p></p>
<p class=MsoNormal>
type master;<o:p></o:p></p>
<p class=MsoNormal> file
"office/mydomain.com.zone";<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal>};<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>BIND SLAVE(bind-9.3.6-4.P1.el5_5.3):<o:p></o:p></p>
<p class=MsoNormal>================================<o:p></o:p></p>
<p class=MsoNormal>options<o:p></o:p></p>
<p class=MsoNormal>{<o:p></o:p></p>
<p class=MsoNormal> // Those options
should be used carefully because they disable port<o:p></o:p></p>
<p class=MsoNormal> // randomization<o:p></o:p></p>
<p class=MsoNormal> //
query-source port 53;<o:p></o:p></p>
<p class=MsoNormal> //
query-source-v6 port 53;<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> // Put files that
named is allowed to write in the data/ directory:<o:p></o:p></p>
<p class=MsoNormal>
directory
"/var/named"; // the default<o:p></o:p></p>
<p class=MsoNormal>
dump-file
"data/cache_dump.db";<o:p></o:p></p>
<p class=MsoNormal>
statistics-file
"data/named_stats.txt";<o:p></o:p></p>
<p class=MsoNormal>
memstatistics-file
"data/named_mem_stats.txt";<o:p></o:p></p>
<p class=MsoNormal> allow-notify<o:p></o:p></p>
<p class=MsoNormal> {<o:p></o:p></p>
<p class=MsoNormal>
A.A.A.A; #
# public IP of master<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal>};<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>logging<o:p></o:p></p>
<p class=MsoNormal>{<o:p></o:p></p>
<p class=MsoNormal>/* If you want to enable
debugging, eg. using the 'rndc trace' command,<o:p></o:p></p>
<p class=MsoNormal> * named will try to
write the 'named.run' file in the $directory (/var/named).<o:p></o:p></p>
<p class=MsoNormal> * By default, SELinux
policy does not allow named to modify the /var/named directory,<o:p></o:p></p>
<p class=MsoNormal> * so put the default
debug log file in data/ :<o:p></o:p></p>
<p class=MsoNormal> */<o:p></o:p></p>
<p class=MsoNormal> channel default_debug
{<o:p></o:p></p>
<p class=MsoNormal>
file "data/named.run";<o:p></o:p></p>
<p class=MsoNormal>
// severity dynamic;<o:p></o:p></p>
<p class=MsoNormal>
severity info;<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal>};<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>view "office"<o:p></o:p></p>
<p class=MsoNormal>{<o:p></o:p></p>
<p class=MsoNormal>/* This view will contain zones you want to serve only to
"internal" clients<o:p></o:p></p>
<p class=MsoNormal> that connect via your directly attached LAN
interfaces - "localnets" .<o:p></o:p></p>
<p class=MsoNormal> */<o:p></o:p></p>
<p class=MsoNormal>
match-clients {
localnets; };<o:p></o:p></p>
<p class=MsoNormal> recursion yes;<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> // all views must
contain the root hints zone:<o:p></o:p></p>
<p class=MsoNormal> include
"/etc/named.root.hints";<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> include
"/etc/named.rfc1912.zones";<o:p></o:p></p>
<p class=MsoNormal> // you should not
serve your rfc1912 names to non-localhost clients.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> // These are your
"authoritative" internal zones, and would probably<o:p></o:p></p>
<p class=MsoNormal> // also be
included in the "localhost_resolver" view above :<o:p></o:p></p>
<p class=MsoNormal> zone " mydomain.com"
{<o:p></o:p></p>
<p class=MsoNormal>
type slave;<o:p></o:p></p>
<p class=MsoNormal>
file "slaves/ mydomain.com.zone";<o:p></o:p></p>
<p class=MsoNormal>
masters {<o:p></o:p></p>
<p class=MsoNormal>
/* put
master nameserver IPs here */<o:p></o:p></p>
<p class=MsoNormal>
A.A.A.A;<o:p></o:p></p>
<p class=MsoNormal>
} ;<o:p></o:p></p>
<p class=MsoNormal> };<o:p></o:p></p>
<p class=MsoNormal>};<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Steve<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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