Hi! Please help to resolve some isssues. I'm running Samba DC Version 4.1.0pre1-GIT-229d934 on Debian 6 (and i'm not familiar with linux at all). Almost all primary services working good, users can authenticate by DC, workstations applying policy, file services running perfect, but i can't setup DNS dynamic updates. I'm runnning Bind 9.9.2 ???: named -V BIND 9.9.2 built with '--prefix=/usr' '--sysconfdir=/etc' '--localstatedir=/var' '--mandir=/usr/share/man' '--enable-threads' '--with-libtool' using OpenSSL version: OpenSSL 0.9.8o 01 Jun 2010 using libxml2 version: 2.7.8. My named.conf is next: ???: // This is the primary configuration file for the BIND DNS server named. // // Please read /usr/share/doc/bind9/README.Debian.gz for information on the // structure of BIND configuration files in Debian, *BEFORE* you customize // this configuration file. // // If you are just adding zones, please do that in /etc/bind/named.conf.local key "rndc-key" { algorithm hmac-md5; secret "gxFSRw6DE1rJZziIPZP71Q=="; }; controls { inet 127.0.0.1 port 953 allow { 127.0.0.1; } keys { "rndc-key"; }; }; include "/etc/bind/named.conf.options"; #include "/etc/bind/named.conf.default-zones"; include "/usr/local/samba/private/named.conf"; #include "/usr/local/samba/private/dns_update_list"; logging { }; ???: options { directory "/var/cache/bind"; tkey-gssapi-keytab "/usr/local/samba/private/dns.keytab"; # tkey-gssapi-credential "DNS/EM.ORG"; tkey-domain "EM.ORG"; // If there is a firewall between you and nameservers you want // to talk to, you may need to fix the firewall to allow multiple // ports to talk. See http://www.kb.cert.org/vuls/id/800113 // If your ISP provided one or more IP addresses for stable // nameservers, you probably want to use them as forwarders. // Uncomment the following block, and insert the addresses replacing // the all-0's placeholder. forwarders { 172.29.78.11; 172.29.78.4; }; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { any; }; }; When i'm uncomment #tkey-gssapi-credential "DNS/EM.ORG"; Bind9 failed to start and logging next: ???: Jan 31 11:12:05 EM-DC named[3396]: configuring TKEY: failure Jan 31 11:12:05 EM-DC named[3396]: loading configuration: failure Jan 31 11:12:05 EM-DC named[3396]: exiting (due to fatal error) and ???: Jan 31 09:25:27 EM-DC named[1481]: samba_dlz: starting transaction on zone em.org Jan 31 09:25:27 EM-DC named[1481]: client 192.168.7.22#64036: update 'em.org/IN' denied Jan 31 09:25:27 EM-DC named[1481]: samba_dlz: cancelling transaction on zone em.org Jan 31 09:25:48 EM-DC named[1481]: samba_dlz: starting transaction on zone em.org Jan 31 09:25:48 EM-DC named[1481]: client 192.168.7.20#61429: update 'em.org/IN' denied Jan 31 09:25:48 EM-DC named[1481]: samba_dlz: cancelling transaction on zone em.org Jan 31 09:25:48 EM-DC named[1481]: client 192.168.7.20#55001: request has invalid signature: TSIG 1136-ms-7.1-52ef.9f4ed036-6b6f-11e2-31a7-8c89a5ffcfe7: t$ Jan 31 09:26:53 EM-DC named[1481]: samba_dlz: starting transaction on zone em.org Jan 31 09:26:53 EM-DC named[1481]: client 192.168.7.13#60999: update 'em.org/IN' denied Jan 31 09:26:53 EM-DC named[1481]: samba_dlz: cancelling transaction on zone em.org Second question is about randomly appearing in the log message: ???: Jan 31 09:29:34 EM-DC smbd[2029]: [2013/01/31 09:29:34.640810, 0] ../source4/lib/messaging/messaging.c:633(imessaging_init) Jan 31 09:29:34 EM-DC smbd[2029]: Unable to setup messaging listener for '/usr/local/samba/private/smbd.tmp/msg/msg.2029.2':NT_STATUS_ACCESS_DENIED Jan 31 09:29:34 EM-DC smbd[2029]: [2013/01/31 09:29:34.641125, 0] ../source3/rpc_server/dcesrv_auth_generic.c:40(auth_generic_server_authtype_start) Jan 31 09:29:34 EM-DC smbd[2029]: ../source3/rpc_server/dcesrv_auth_generic.c:40: auth_generic_prepare failed: NT_STATUS_INVALID_SERVER_STATE Jan 31 09:29:34 EM-DC smbd[2029]: [2013/01/31 09:29:34.641266, 0] ../source3/rpc_server/srv_pipe.c:555(pipe_auth_generic_bind) Jan 31 09:29:34 EM-DC smbd[2029]: ../source3/rpc_server/srv_pipe.c:555: auth_generic_server_authtype_start failed: NT_STATUS_INVALID_SERVER_STATE Please help! how can i fix this?