nslookup communications error: end of file

BriggsDane 166 Reputation points
2020-10-02T17:57:32.53+00:00

I am running a nslookup on my domain for SRV records and I am getting a communications error: end of file. Not exactly sure what that error means or how to go about fixing the issue.

Active Directory Integrated DNS

nslookup -type=SRV _ldap._tcp.internal.domain.com
;; Truncated, retrying in TCP mode.
;; communications error: end of file

;; communications error: end of file

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Accepted answer
  1. Gloria Gu 3,886 Reputation points
    2020-10-05T08:08:23.033+00:00

    Hi,

    Thank you for posting in Q&A!

    "ORA-03113 ERROR MESSAGE END-OF-FILE ON COMMUNICATION CHANNEL" This error can often fall into two large categories: errors caused by syntax error and misappropriation and connection errors between servers.

    (1) As described in the offical doc how-to-verify-that-srv-dns-records-have-been-created-for-a-domain-cont, Active Directory creates its SRV records in the following folders, where Domain_Name is the name of your domain:
    Forward Lookup Zones/Domain_Name/_msdcs/dc/_sites/Default-First-Site-Name/_tcp

    30142-30.png

    To use Nslookup to verify the SRV records, type this command: nslookup -type=SRV _ldap._tcp.dc._msdcs.domain name
    I've tried this command in my environment and it works successfully.

    29990-29.png

    (2)If this command fail to work, you should check your network connection. To do this, check by Control Panel> Network and Internet> Network connections> Diagnose this connection& pinging via the IP address and the DNS name and other general network problem methods.

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