![]() Domain Controllers with the PDC Role are automatically Domain Master Browser. DNS even just all by itself, is better on a single homed machine.Ĥ. ![]() Being a VPN Server and even simply running RRAS makes it multi-homed.ģ. Domain Controllers should not be multi-homedĢ. >MULTIHOMING Domain controllers is not recommended, it always results in multiple problems.ġ. IP configuration best practice on DC and clients/member servers: Microsoft Certified IT Professional: Server AdministratorĮnsure that correct dns setting is configured on DC's as well on client as below Posting is provided "AS IS" with no warranties or guarantees, and confers no rights.Ĭertified Systems Administrator: Security MicrosoftĬertified Systems Engineer: Security MicrosoftĬertified Technology Specialist: Windows Server 2008 Active Directory, Configuration MicrosoftĬertified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration MicrosoftĬertified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration MicrosoftĬertified Technology Specialist: Windows 7, Configuring MicrosoftĬertified Technology Specialist: Designing and Providing Volume Licensing Solutions to Large Organizations MicrosoftĬertified IT Professional: Enterprise Administrator Also, make sure that port 53 is not blocked from clients to the new DC. Once done, run ipconfig /registerdns and restart netlogon on each DC you have and force AD replication.įor client computers, make them points to both DCs as DNS servers: One as primary and the other one as secondary. Make sure that needed ports for AD replication are opened:.Make sure that public DNS servers are set as forwarders and not in IP settings of DCs.Make each DC points to its private IP address as secondary DNS server and 127.0.0.1 as third on.Make each DC points to the other one as primary DNS server.Make sure that each DC has one IP address and one NIC card enabled (All other NICs should be disabled).Like every time, I could not ping the Mac, despite the Oneplus gets IP address via DHCP from the Mac.So here you have two DCs. I also created a Hotspot with my Mac to eliminate the router from the circle and I connected to it with the Oneplus. This Hotspot does not have any IPv6 configuration, but I experienced the same issue. I created a Hotspot with my iPhone and connected with both of the Mac and the Oneplus. My question is why did IPv6 ping work and IPv4 not? Could be the problem the recently introduced IPv6 addresses? I also selected the Link-local only option at the System Preferences / Network / interface / Advanced / TCP/IP / IPv6 Configuration tab. I removed all network interface under the System Preferences / Network menu and added them again. Mac's firewall is disabled and there is no firewall rule applied in the router. Fan fact, recently my ISP started issuing IPv6 addresses and I tried to ping the Mac from the Oneplus:.I also started to host a simple HTTP server, but it seems the Mac does not response to the TCP SYN segments, because I could see RTO flagged segments (Retransmission Timeout).I took a look at the traffic in Wireshark and I got the "host unreachable" message to the ICMP requests.However I cannot ping the IPv4 address of the Mac.I detected the following anomaly:Ħ4 bytes from 192.168.1.127: icmp_seq=3 ttl=64 time=30.433 msĤ packets transmitted, 4 packets received, 0.0% packet loss I have a Macbook and an Android device (Oneplus phone) on same network and the Macbook connects via USB LAN (or Wi-Fi), Android device via Wi-Fi.
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