Re: [Samba] Samba4 internal DNS not responding to DNS requests - SOLVED
The problem was definitely SELinux and/or firewall (iptables). Thank you for the help. On Wed, Jan 9, 2013 at 8:38 PM, Andrew Bartlett abart...@samba.org wrote: On Wed, 2013-01-09 at 09:47 -0500, fe...@epepm.cupet.cu wrote: I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net That was the reason I switched to bind9. The internal dns server used to keep connections open, without closing old ones, until reaching the limit of max files... I don't know wether it's been already fixed or not. But it doesn't happen with bind. This topic is been in the list before. Yes, we fixed that (with a timeout). Andrew Bartlett -- Andrew Bartletthttp://samba.org/~abartlet/ Authentication Developer, Samba Team http://samba.org -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba -- *Lee Allen* email: l...@leecallen.com bus: (716) 773-2729 home: (716) 773-2326 cell: (716) 880-0854 fax: (716) 408-8844 -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
[Samba] Samba4 internal DNS not responding to DNS requests
I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net Thank you. Lee Allen -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba4 internal DNS not responding to DNS requests
I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net That was the reason I switched to bind9. The internal dns server used to keep connections open, without closing old ones, until reaching the limit of max files... I don't know wether it's been already fixed or not. But it doesn't happen with bind. This topic is been in the list before. Felix. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba4 internal DNS not responding to DNS requests
On 09/01/13 14:32, Lee Allen wrote: I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net Thank you. Lee Allen Hi, What does 'netstat -npl | grep 53 | grep LISTEN' return? Rowland -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba4 internal DNS not responding to DNS requests
I meant to include that in my original description. Samba is definitely listening for the DNS requests. Here it is: $ netstat -npl | grep 53 | grep LISTEN tcp0 0 127.0.0.1:530.0.0.0:* LISTEN 15799/samba tcp0 0 192.168.0.13:53 0.0.0.0:* LISTEN 15799/samba Lee On Wed, Jan 9, 2013 at 10:05 AM, Rowland Penny rpe...@f2s.com wrote: On 09/01/13 14:32, Lee Allen wrote: I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.**php/Samba_AD_DC_HOWTOhttps://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net Thank you. Lee Allen Hi, What does 'netstat -npl | grep 53 | grep LISTEN' return? Rowland -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/**mailman/options/sambahttps://lists.samba.org/mailman/options/samba -- *Lee Allen* email: l...@leecallen.com bus: (716) 773-2729 home: (716) 773-2326 cell: (716) 880-0854 fax: (716) 408-8844 -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba4 internal DNS not responding to DNS requests
On 09/01/13 15:20, Lee Allen wrote: I meant to include that in my original description. Samba is definitely listening for the DNS requests. Here it is: $ netstat -npl | grep 53 | grep LISTEN tcp0 0 127.0.0.1:530.0.0.0:* LISTEN 15799/samba tcp0 0 192.168.0.13:53 0.0.0.0:* LISTEN 15799/samba Lee On Wed, Jan 9, 2013 at 10:05 AM, Rowland Penny rpe...@f2s.com wrote: On 09/01/13 14:32, Lee Allen wrote: I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.**php/Samba_AD_DC_HOWTOhttps://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net Thank you. Lee Allen Hi, What does 'netstat -npl | grep 53 | grep LISTEN' return? Rowland -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/**mailman/options/sambahttps://lists.samba.org/mailman/options/samba Hi, I thought that there may have been a possibility that dnsmasq was running, the only other thoughts I have are: How did you provision? Is the firewall blocking port 53? And that good old favourite, Selinux! Rowland -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba4 internal DNS not responding to DNS requests
I was sure I had disabled firewall and SElinux on this box. But I can't establish a netcat connection to the server so something is up. Thank you! On 09/01/13 15:20, Lee Allen wrote: I meant to include that in my original description. Samba is definitely listening for the DNS requests. Here it is: $ netstat -npl | grep 53 | grep LISTEN tcp0 0 127.0.0.1:530.0.0.0:* LISTEN 15799/samba tcp0 0 192.168.0.13:53 0.0.0.0:* LISTEN 15799/samba Lee On Wed, Jan 9, 2013 at 10:05 AM, Rowland Penny rpe...@f2s.com wrote: On 09/01/13 14:32, Lee Allen wrote: I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.php/Samba_AD_DC_HOWTOhttps://wiki.samba.org/index.**php/Samba_AD_DC_HOWTO https:/**/wiki.samba.org/index.php/**Samba_AD_DC_HOWTOhttps://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net Thank you. Lee Allen Hi, What does 'netstat -npl | grep 53 | grep LISTEN' return? Rowland -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/sambahttps://lists.samba.org/**mailman/options/samba https://**lists.samba.org/mailman/**options/sambahttps://lists.samba.org/mailman/options/samba Hi, I thought that there may have been a possibility that dnsmasq was running, the only other thoughts I have are: How did you provision? Is the firewall blocking port 53? And that good old favourite, Selinux! Rowland -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/**mailman/options/sambahttps://lists.samba.org/mailman/options/samba -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
Re: [Samba] Samba4 internal DNS not responding to DNS requests
On Wed, 2013-01-09 at 09:47 -0500, fe...@epepm.cupet.cu wrote: I am not able to get the Samba4 internal DNS server to respond to DNS requests on the network. I am running Samba4 4.1.0pre1-GIT-c1fb37d on my CentOS 6.3 system. I followed the instructions here: https://wiki.samba.org/index.php/Samba_AD_DC_HOWTO I configured Samba4 to use the internal DNS server. My Samba4 server is 192.168.0.13. Its full hostname is ubuntu-ad.allenlan.net. The realm is ALLENLAN.NET. The DNS testing section of the document passes: $host -t SRV _ldap._tcp.allenlan.net. _ldap._tcp.allenlan.net has SRV record 0 100 389 ubuntu-ad.allenlan.net. $host -t SRV _kerberos._udp.allenlan.net. _kerberos._udp.allenlan.net has SRV record 0 100 88 ubuntu-ad.allenlan.net. $host -t A ubuntu-ad.allenlan.net. ubuntu-ad.allenlan.net has address 192.168.0.13 I configured my Windows XP system with a DNS of 192.168.0.13 (Samba4 server). When I perform the Windows command nslookup ubuntu-ad.allenlan.net (or any variation of that) it reports: DNS request timed out. timeout was 2 seconds. *** Can't find server name for address 192.168.0.13: Timed out (above 3 messages repeat again) Default servers are not available Server: UnKnown Address: 192.168.0.13 The Windows system can ping the Samba4 server by IP address. Any help would be appreciated! More configuration information below. /etc/resolv.conf: domain allenlan.net nameserver 192.168.0.13 /usr/local/samba/etc/smb.conf: [global] workgroup = ALLENLAN realm = ALLENLAN.NET netbios name = UBUNTU-AD server role = active directory domain controller dns forwarder = 192.168.0.1 interfaces = 192.168.0.13 127.0.0.1 bind interfaces only = yes log level = 3 server services = smb, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind, ntp_signd, kcc, dnsupdate, dns /etc/hosts: 192.168.0.13ubuntu-ad ubuntu-ad.allenlan.net 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 $hostname ubuntu-ad.allenlan.net That was the reason I switched to bind9. The internal dns server used to keep connections open, without closing old ones, until reaching the limit of max files... I don't know wether it's been already fixed or not. But it doesn't happen with bind. This topic is been in the list before. Yes, we fixed that (with a timeout). Andrew Bartlett -- Andrew Bartletthttp://samba.org/~abartlet/ Authentication Developer, Samba Team http://samba.org -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
