DCLocator | Acitve Directory Client logon


                                 The netlogon service in DC is responsible for registering SRV records in the DNS server under _tcp.dc._msdcs.domain.com. It then registers the SRV records of Domain Controller under _sites.dc._msdcs.domain.com. based on their site location.
                                                When a client first tries to login to an AD network, the client sends a DNS request for finding the DC's under, _ldap._tcp.dc._msdcs.domain.com. From the list, it chooses a DC server randomly for authenticating. Then the client sends an LDAP ping to the DC asking for the site it is based on with respect to the IP address of the client. The DC then returns the site which the client's IP address is most related to, along with the current site and a flag DSClosestFlag which would be either 0 or 1 based on whether the current authenticated DC is the closest to the client. If this flag indicates that the client is not authenticated to the closest DC, the client sends a site specific DNS query for finding the DC from _ldap._tcp._sitename._sites.dc._msdcs.domain.com.

Comments

Post a Comment

Popular posts from this blog

VMware and Windows Interview Questions: Part 2

Image
VMware and Windows Interview Questions: Part 1 VMware and Windows Interview Questions: Part 2 VMware and Windows Interview Questions: Part 3 VMware and Windows Interview Questions: Part 4 VMware and Windows Interview Questions: Part 5 VMware and Windows Interview Questions: Part 6 VMware and Windows Interview Questions: Part 7 VMware and Windows Interview Questions: Part 8 Follow this link for scenario based VMware interview questions. Maximum number of LUNs that can be attached to a host (ESXi 5.0) 256 Maximum number of vCPUs that can be assigned to a VM (ESXi 5.0) 32
Deep dive »

VMware and Windows Interview Questions: Part 3

What is vSAN ? It is a hypervisor-converged storage solution built by aggregating the local storage attached to the ESXi hosts managed by a vCenter.  Recommended iSCSI configuration? A separate vSwitch, and a separate network other than VMtraffic network for iSCSI traffic. Dedicated physical NICs should be connected to vSwitch configured for iSCSI traffic. What is iSCSI port binding ? Port binding is used in iSCSI when multiple VMkernel ports for iSCSI reside in the same broadcast domain and IP subnet, to allow multiple paths to an iSCSI array that broadcasts a single IP address.
Deep dive »

VMware vMotion error at 14%

Issue While performing vMotion, the operation fails at 14% with the below error : A general system error occurred: Migrtion to host <Destination ESXi IP> failed with erro Connection closed by remote host, possibly due to timeout (0xbad003f). Migrate virtual machine:A general system error occurred: Migration to host <Destination ESXi IP> failed with error Connection closed by remote host, possibly due to timeout (0xbad003f). vMotion migration [-1062729272:1406020861428172] (19-71629048648008) failed to receive...  Scenarios Scenario 1: Your management network and vmotion network are in the same subnet using the same physical NIC.
Deep dive »