allow-update issue

Hi,
I got the problem to reload the zone file if I set allow-update and manaully config the zone file.

1.I added the following config in /etc/named.conf
zone "4567.com" {
type master;
file "4567.com.db";
allow-update {
127.0.0.1;
192.168.1.1;
};
};

2.I created a zone file
$TTL 3600 ; 1 hour
4567.com. IN SOA test.ttn.net. lindahu.noc.ttn.net. (
2004081301 ; serial
10800 ; refresh (3 hours)
3600 ; retry (1 hour)
604800 ; expire (1 week)
3600 ; minimum (1 hour)
)
NS test.ttn.net.
NS test1.ttn.net.

3. rndc reload

4. dig 4567.com SOA => I can get the correct SOA

5. I modify the zone file
$TTL 3600 ; 1 hour
4567.com. IN SOA test.ttn.net. lindahu.noc.ttn.net. (
2004081302 ; serial
10800 ; refresh (3 hours)
3600 ; retry (1 hour)
604800 ; expire (1 week)
3600 ; minimum (1 hour)
)
NS test.ttn.net.
NS test1.ttn.net.
www IN A 192.168.1.2

6. rndc reload

7. dig 4567.com SOA => the serial is still the old one - 2004081301
dig www.4567.com => I can't get the A record for www

However, I found if I removed allow-update from /etc/named.conf, everything will be fine.
zone "4567.com" {
type master;
file "4567.com.db";
};

This zone file doesn't have .jnl and never updates by dynamic dns.

If allow-update is setted, can't I update zone manually?



Thanks


Linda