'net ads join -U username' failing with an error 'NT_STATUS_IO_TIMEOUT'











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I am attempting to provide access to Ubuntu shared directories using Active Directory users and group using Samba. I am following this article to install and configure AD and Unix so that access can be provided:



Summary




  1. As a part of the installation, I have installed ntp krb5-user samba(v4.1.6) samba-common smbclient winbind


  2. I followed the configuration settings as provided in the above article. I have configured ntp.conf, resolv.conf, krb5.conf, nsswitch.conf and smb.conf.



  3. After restarting all of the services and while joining the domain using sudo net ads join -U administrator, I am getting the following error:



    Failed to join domain: failed to lookup DC info for domain 'CELESTIAL1' over rpc: NT_STATUS_IO_TIMEOUT




Testing




  1. I tried to execute kinit username, the ticket got generated successfully and I was able to verify from command 'klist'.


  2. I am able to ping the Ubuntu server's IP and the Windows server's IP as well as the domain from both the sides.


  3. The services winbind, nmbd, and smbd are running as expected.


  4. I rebooted the Ubuntu machine and AD server, but same error is showing while performing the domain join operation.



Questions




  1. What does the NT_STATUS_IO_TIMEOUT error indicate? Are there any issues on the Windows Server or on Ubuntu machine?


  2. How can I join the Ubuntu machine to Active Directory? Are there any steps that I missed that need to be performed to join the domain successfully?











share|improve this question




























    up vote
    2
    down vote

    favorite












    I am attempting to provide access to Ubuntu shared directories using Active Directory users and group using Samba. I am following this article to install and configure AD and Unix so that access can be provided:



    Summary




    1. As a part of the installation, I have installed ntp krb5-user samba(v4.1.6) samba-common smbclient winbind


    2. I followed the configuration settings as provided in the above article. I have configured ntp.conf, resolv.conf, krb5.conf, nsswitch.conf and smb.conf.



    3. After restarting all of the services and while joining the domain using sudo net ads join -U administrator, I am getting the following error:



      Failed to join domain: failed to lookup DC info for domain 'CELESTIAL1' over rpc: NT_STATUS_IO_TIMEOUT




    Testing




    1. I tried to execute kinit username, the ticket got generated successfully and I was able to verify from command 'klist'.


    2. I am able to ping the Ubuntu server's IP and the Windows server's IP as well as the domain from both the sides.


    3. The services winbind, nmbd, and smbd are running as expected.


    4. I rebooted the Ubuntu machine and AD server, but same error is showing while performing the domain join operation.



    Questions




    1. What does the NT_STATUS_IO_TIMEOUT error indicate? Are there any issues on the Windows Server or on Ubuntu machine?


    2. How can I join the Ubuntu machine to Active Directory? Are there any steps that I missed that need to be performed to join the domain successfully?











    share|improve this question


























      up vote
      2
      down vote

      favorite









      up vote
      2
      down vote

      favorite











      I am attempting to provide access to Ubuntu shared directories using Active Directory users and group using Samba. I am following this article to install and configure AD and Unix so that access can be provided:



      Summary




      1. As a part of the installation, I have installed ntp krb5-user samba(v4.1.6) samba-common smbclient winbind


      2. I followed the configuration settings as provided in the above article. I have configured ntp.conf, resolv.conf, krb5.conf, nsswitch.conf and smb.conf.



      3. After restarting all of the services and while joining the domain using sudo net ads join -U administrator, I am getting the following error:



        Failed to join domain: failed to lookup DC info for domain 'CELESTIAL1' over rpc: NT_STATUS_IO_TIMEOUT




      Testing




      1. I tried to execute kinit username, the ticket got generated successfully and I was able to verify from command 'klist'.


      2. I am able to ping the Ubuntu server's IP and the Windows server's IP as well as the domain from both the sides.


      3. The services winbind, nmbd, and smbd are running as expected.


      4. I rebooted the Ubuntu machine and AD server, but same error is showing while performing the domain join operation.



      Questions




      1. What does the NT_STATUS_IO_TIMEOUT error indicate? Are there any issues on the Windows Server or on Ubuntu machine?


      2. How can I join the Ubuntu machine to Active Directory? Are there any steps that I missed that need to be performed to join the domain successfully?











      share|improve this question















      I am attempting to provide access to Ubuntu shared directories using Active Directory users and group using Samba. I am following this article to install and configure AD and Unix so that access can be provided:



      Summary




      1. As a part of the installation, I have installed ntp krb5-user samba(v4.1.6) samba-common smbclient winbind


      2. I followed the configuration settings as provided in the above article. I have configured ntp.conf, resolv.conf, krb5.conf, nsswitch.conf and smb.conf.



      3. After restarting all of the services and while joining the domain using sudo net ads join -U administrator, I am getting the following error:



        Failed to join domain: failed to lookup DC info for domain 'CELESTIAL1' over rpc: NT_STATUS_IO_TIMEOUT




      Testing




      1. I tried to execute kinit username, the ticket got generated successfully and I was able to verify from command 'klist'.


      2. I am able to ping the Ubuntu server's IP and the Windows server's IP as well as the domain from both the sides.


      3. The services winbind, nmbd, and smbd are running as expected.


      4. I rebooted the Ubuntu machine and AD server, but same error is showing while performing the domain join operation.



      Questions




      1. What does the NT_STATUS_IO_TIMEOUT error indicate? Are there any issues on the Windows Server or on Ubuntu machine?


      2. How can I join the Ubuntu machine to Active Directory? Are there any steps that I missed that need to be performed to join the domain successfully?








      ubuntu samba active-directory ntp kerberos






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      edited Feb 7 '16 at 21:33









      Karl Richter

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      91421639










      asked Oct 6 '15 at 13:44









      Amit Baswa

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          The issue was that there was no entry in /etc/resolv.conf for AD DNS and hence the machine was pinging to the actual global registered domain. On each reboot, the resolv.conf entries gets reset hence we have to provide entry once the system is rebooted.






          share|improve this answer























          • Alternatively, you can provide a dns-nameservers in /etc/network/interfaces or use some other persistent way of storing preferred DNS servers
            – edhurtig
            Jun 25 '16 at 3:51













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          1 Answer
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          up vote
          0
          down vote













          The issue was that there was no entry in /etc/resolv.conf for AD DNS and hence the machine was pinging to the actual global registered domain. On each reboot, the resolv.conf entries gets reset hence we have to provide entry once the system is rebooted.






          share|improve this answer























          • Alternatively, you can provide a dns-nameservers in /etc/network/interfaces or use some other persistent way of storing preferred DNS servers
            – edhurtig
            Jun 25 '16 at 3:51

















          up vote
          0
          down vote













          The issue was that there was no entry in /etc/resolv.conf for AD DNS and hence the machine was pinging to the actual global registered domain. On each reboot, the resolv.conf entries gets reset hence we have to provide entry once the system is rebooted.






          share|improve this answer























          • Alternatively, you can provide a dns-nameservers in /etc/network/interfaces or use some other persistent way of storing preferred DNS servers
            – edhurtig
            Jun 25 '16 at 3:51















          up vote
          0
          down vote










          up vote
          0
          down vote









          The issue was that there was no entry in /etc/resolv.conf for AD DNS and hence the machine was pinging to the actual global registered domain. On each reboot, the resolv.conf entries gets reset hence we have to provide entry once the system is rebooted.






          share|improve this answer














          The issue was that there was no entry in /etc/resolv.conf for AD DNS and hence the machine was pinging to the actual global registered domain. On each reboot, the resolv.conf entries gets reset hence we have to provide entry once the system is rebooted.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Feb 7 '16 at 18:54









          Karl Richter

          91421639




          91421639










          answered Oct 9 '15 at 8:26









          Amit Baswa

          1114




          1114












          • Alternatively, you can provide a dns-nameservers in /etc/network/interfaces or use some other persistent way of storing preferred DNS servers
            – edhurtig
            Jun 25 '16 at 3:51




















          • Alternatively, you can provide a dns-nameservers in /etc/network/interfaces or use some other persistent way of storing preferred DNS servers
            – edhurtig
            Jun 25 '16 at 3:51


















          Alternatively, you can provide a dns-nameservers in /etc/network/interfaces or use some other persistent way of storing preferred DNS servers
          – edhurtig
          Jun 25 '16 at 3:51






          Alternatively, you can provide a dns-nameservers in /etc/network/interfaces or use some other persistent way of storing preferred DNS servers
          – edhurtig
          Jun 25 '16 at 3:51




















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