I have a master and secondary DNS server. The secondary tries to do a zone-transfer from the master, but reports a connection refused. However, the master claims it approved the transfer. Both master and slave are test machines. The strange thing is: There are only 4 UDP packets between master and slave, while a zone transfer for the same domain between a production master and slave contains over 30 packets. The only difference is that the test systems are located in two different subnets 192.168.1.0/24 and 192.168.101.0/24, while the production pair is within the same subnet 192.168.1.0/24 I also added another test machine within the 192.168.101.0/24 network and I can set up mirroring between those two. So the problem seems to be setting up mirroring between different subnets. What do I have to consider when I do this? Thanks, MARK The server (master) seems to allow the transfer: ------------------------------------------------ requestmgr_detach: 0x9d363c0: eref 1 iref 0 client 192.168.101.96#34085: UDP request client 192.168.101.96#34085: request is not signed client 192.168.101.96#34085: recursion available: approved client 192.168.101.96#34085: query client 192.168.101.96#34085: query 'my-domain.com/IN' approved client 192.168.101.96#34085: send client 192.168.101.96#34085: sendto client 192.168.101.96#34085: senddone client 192.168.101.96#34085: next client 192.168.101.96#34085: endrequest client @0x9d14eb0: udprecv However, the client (sceondary mirror) says: -------------------------------------------- queue_xfrin: zone my-domain.com/IN: enter zone my-domain.com/IN: no database exists yet, requesting AXFR of initial version from 192.168.1.22#53 transfer of 'my-domain.com/IN' from 192.168.1.22#53: failed to connect: connection refused zone my-domain.com/IN: zone transfer finished: connection refused transfer of 'my-domain.com/IN' from 192.168.1.22#53: end of transfer What is the problem here? The master configuration file is: --------------------------------- options { directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; allow-transfer { 192.168.0.0/16; }; }; logging { category "unmatched" { "debug"; "default_syslog"; "default_debug"; }; category "default" { "debug"; "default_syslog"; "default_debug"; }; channel "debug" { file "/tmp/named_debug"; severity debug 3; }; }; zone "my-domain.com" { notify no; type slave; file "pz/named.<MY_DOMAIN>.com"; masters { 192.168.1.136; }; }; Slave config file: ------------------ // Default named.conf generated by install of bind-9.2.4-2 options { directory "/var/named"; dump-file "/var/named/data/cache_dump.db"; statistics-file "/var/named/data/named_stats.txt"; }; logging { category "unmatched" { "debug"; "default_syslog"; "default_debug"; }; category "default" { "debug"; "default_syslog"; "default_debug"; }; channel "debug" { file "/tmp/named_debug"; severity debug 3; }; }; zone "my-domain.com" { notify no; type slave; file "pz/named.my-domain.com"; masters { 192.168.1.136; }; }; Thanks, MARK