Rowland> You will probably be better off using a proper mail client (i.e. thunderbird) Ok. That's what I'll do from now on. Rowland> I am beginning to think you are using Bind9 with flatfiles, otherwise Rowland> all machines would be available to the dns server on any DC. There are two locations: 1 (local, where I am physically) and 2 (remote). On the remote location (2) "samba-tool domain provision" was made with the option "--dns-backend=BIND9_DLZ" a few years ago. On the local location (1) "samba-tool domain provision" was made with the option "--dns-backend=SAMBA_INTERNAL" recently. Now, how can I confirm this to be sure? > First thing, is company.elmts a registered domain name ? "company.elmts" is "iodesoft.lan" > if so, I would use a subdomain of this instead e.g. ad.company.elmts I don't see why. I've read it is possible to have one DNS domain name not two or more. I think it would be very difficult for me to change it. > Provided that the required info is AD and the dns server is set up to use this info, the ping commands should work I don't understand what you mean. > The other question is, why do both DCs have multiplw FQDN's I don't understand what you mean. I meant that on subnet 192.168.1.0/24 (where there is the SAMBA AD DC DNS server 1), there is one machine which Fully Qualified Domain Name (FQDN) is "hostname_1_1.company.elmts." and IP "192.168.1.11" and that there is another one which FQDN is "hostname_1_2.company.elmts." with IP "192.168.1.12" Etc. Currently, the problem is: When I am on machine "hostname_1_1.company.elmts." and I "ping hostname_2_1.company.elmts." the local Samba DNS server doesn't know the name "hostname_2_1.company.elmts.". Because the two Samba AD DC do not know each other. Because the DNS servers (Bind remote and SAMBA_INTERNAL local) do not know each other. I don't know how to make them be aware of each other and among other things forward the DNS queries to each other when necessary. Thank you for your help. -- Léa On 13/04/2018 3:26 PM, Rowland Penny wrote:> On Fri, 13 Apr 2018 14:52:59 +0200 > Lmloge<lmloge at orange.fr> wrote: > >> Thank you for your answer. >> >> I do not receive anything in my Thunderbird mail boxes. >> I probably turned off that functionality a long time ago. I don't >> remember. >> >> About the post that I can't find, I sent it from the Web page >> http://samba.2283325.n4.nabble.com/Samba-General-f2403709.html >> by creating a "New topic". > You will probably be better off using a proper mail client (i.e. > thunderbird) > >> My post was approximately this one: >> ====================================================================================>> My problem is about DNS names resolution in case there are: >> two DNS servers >> separated by a VPN >> and one DNS domain name. >> >> Context: two Samba AD DC on each side of the VPN, one forest, one >> domain, one site, two subnets. >> Note that this target configuration is not yet operational since I'm >> trying to make the DSN names resolution work first through the VPN. >> The DNS backend is SAMBA_INTERNAL. >> >> +---------------------------+ >> | SUBNET: 192.168.1.0/24 >> +---------------------------+ >> | SAMBA AD DC DNS server 1 >> +---------------------------+ >> | DOMAIN: company.elmts >> +---------------------------+ >> | hostname_1_1 >> | hostname_1_2 >> | ... >> | hostname_1_N1 >> +---------------------------+ >> | >> | >> VPN >> | >> | >> +--------------------------+ >> | SUBNET: 192.168.2.0/24 >> +--------------------------+ >> | SAMBA AD DC DNS server 2 >> +--------------------------+ >> | DOMAIN: company.elmts >> +--------------------------+ >> | hostname_2_1 >> | hostname_2_2 >> | ... >> | hostname_2_N2 >> +--------------------------+ >> >> Sedentary machines: have their hostname registered either on SAMBA AD >> DC DNS server 1 or (exclusive) SAMBA AD DC DNS server 2. >> Nomad machines: have their hostname registered on both SAMBA AD DC >> DNS servers. > I am beginning to think you are using Bind9 with flatfiles, otherwise > all machines would be available to the dns server on any DC. > >> -------------------------------------------------------------------- >> On SAMBA AD DC DNS server 1: >> ---------------------------- >> FQDN: hostname_1_1.company.elmts. / IP: 192.168.1.11 / SEDENTARY >> FQDN: hostname_1_2.company.elmts. / IP: 192.168.1.12 / SEDENTARY >> ... >> FQDN: nomad_a.company.elmts. / IP: 192.168.1.53 / NOMAD >> FQDN: nomad_b.company.elmts. / IP: 192.168.1.54 / NOMAD >> ... >> -------------------------------------------------------------------- >> On SAMBA AD DC DNS server 2: >> ---------------------------- >> FQDN: hostname_2_1.company.elmts. / IP: 192.168.2.21 / SEDENTARY >> FQDN: hostname_2_2.company.elmts. / IP: 192.168.2.22 / SEDENTARY >> ... >> FQDN: nomad_a.company.elmts. / IP: 192.168.2.65 / NOMAD >> FQDN: nomad_b.company.elmts. / IP: 192.168.2.66 / NOMAD >> ... >> -------------------------------------------------------------------- >> >> For now, if I `ping hostname_2_1` from `hostname_1_1`, the name >> `hostname_2_1` is not resolved. >> How can I make this work? > First thing, is company.elmts a registered domain name ? if so, I would > use a subdomain of this instead e.g. ad.company.elmts > > Provided that the required info is AD and the dns server is set up to > use this info, the ping commands should work (provided the VPN is > working correctly). If the 'ping' doesn't work, then it is unlikely > replication will work either. > > The other question is, why do both DCs have multiplw FQDN's > > Rowland >