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Thread: Getting "Error: Connection Refused"

  1. #1
    Andrew.Lupton is offline Banned
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    Getting "Error: Connection Refused"

    I get the following error message: R1API-E-CON, connection to server <srv_qa> failed -NET-E-CONNF, network connection error -SYS-E-ERRMSG, Connection refused. Can you explain what this is?

  2. #2
    Andrew.Lupton is offline Banned
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    Microsoft Windows 2003 Server Service Pack 1 introduced an issue caused by MTU size mismatches.
    The following hotfixes must be installed on all RDS and R-1 machines involved in the replication process (Centers, Edges, Controllers and Satellites) running Windows 2003 Server SP1.

    http://support.microsoft.com/kb/898060/
    http://support.microsoft.com/kb/899148/

    ###

    This error may also occur during license validation because during license validation the controller needs to access the Satellite (Edge) and it fails, however, this is not a license problem.

    The error message "Connection Refused" means that either the Satellite component was not installed on the node specified in the error message, and thus cannot accept RDS connections, or the Satellite daemon component is not up and running.
    If the Satellite component was not installed, re-install RDS with the Satellite component on the given machine.
    If the Satellite component was installed, make sure that FASTCopy service (fcopyd) is started (in Windows) or that it is properly defined in inetd or xinetd in UNIX.

    To Troubleshoot:

    1. From the command line, on the machine refusing the connection (in our case srv_qa), issue the following command:
      rds info -controller=srv_qa -controller_user=USERNAME
      -controller_pass=PASSWORD

      The command line output look like:
      Console information:
      Version : RDS 3.1
      Build Date : May 29 2008 10:30:29
      Controller "srv_qa" information:
      Version : RDS 3.1
      Build Date : May 29 2008 10:30:02
      In that case, the installation on the server is fine. (On UNIX it means the Inetd is accepting the connection and answering).
    2. If you issue the same command from a remote console and get the Connection Refused error, it means that the port 2837 on <srv_qa> is blocked for incoming connection from another box. There are usually two possible reasons for that (both are not related to RDS):


    • There is a firewall between the Console and the server and port 2837 is not open for connection into the server <srv_qa>.


    • There is internal IP security definition on <srv_qa> itself (like hosts.allow or hosts.deny or just IP security) that prevents connection from an external box to <srv_qa> over port 2837.


    NOTE:
    When working with NIS, you should change directory to /var/yp and run make. This will load the /etc/services file info the NIS information system. On some systems a reboot is required after doing the above, for the changes to take effect.

    ###
    Solaris 10 only: Check the state of the services by issuing the following commands. The services should be listed as "State: Online":

    svcs -x "network/rep*"
    svcs -x "network/fcopy*"


    If any of the services are listed as "State: Disabled", issue the following commands:

    svcadm enable svc:/network/repliweb_cm/tcp:default
    svcadm enable svc:/network/fcopy_server/tcp:default


    If any of the services are listed as "State: Maintenance", issue the following commands:

    svcadm clear svc:/network/repliweb_cm/tcp:default
    svcadm clear svc:/network/fcopy_server/tcp:default


    Check the state of the services again. The services should now be listed as "State: Online".
    Last edited by Andrew.Lupton; 06-18-2013 at 10:19 AM.

  3. #3
    jlui_commonwealth is offline Junior Member
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    IIS Replication

    Hi Andrew,

    We actually recieve this message on one of our satellite nodes on a nightly basis when trying to transfer IIS7. We are running Win2k8 R2, with over 900+ websites in IIS replication. We have 2 satellite nodes, one node runs for appx 4+ hours and the other node stops after 6 hours then, picks back up immediately after and attempts to complete the job and takes over 6+ hours to complete.

    Just wondering if anyone else has experienced any similar issues like this before.

    Quote Originally Posted by Andrew.Lupton View Post
    Microsoft Windows 2003 Server Service Pack 1 introduced an issue caused by MTU size mismatches.
    The following hotfixes must be installed on all RDS and R-1 machines involved in the replication process (Centers, Edges, Controllers and Satellites) running Windows 2003 Server SP1.

    Network connectivity between clients and servers may fail after you install security update MS05-019 or Windows Server 2003 Service Pack 1
    Some firewalls may reject network traffic that originates from Windows Server 2003 Service Pack 1-based or Windows Vista-based computers

    ###

    This error may also occur during license validation because during license validation the controller needs to access the Satellite (Edge) and it fails, however, this is not a license problem.

    The error message "Connection Refused" means that either the Satellite component was not installed on the node specified in the error message, and thus cannot accept RDS connections, or the Satellite daemon component is not up and running.
    If the Satellite component was not installed, re-install RDS with the Satellite component on the given machine.
    If the Satellite component was installed, make sure that FASTCopy service (fcopyd) is started (in Windows) or that it is properly defined in inetd or xinetd in UNIX.

    To Troubleshoot:

    1. From the command line, on the machine refusing the connection (in our case srv_qa), issue the following command:
      rds info -controller=srv_qa -controller_user=USERNAME
      -controller_pass=PASSWORD

      The command line output look like:
      Console information:
      Version : RDS 3.1
      Build Date : May 29 2008 10:30:29
      Controller "srv_qa" information:
      Version : RDS 3.1
      Build Date : May 29 2008 10:30:02
      In that case, the installation on the server is fine. (On UNIX it means the Inetd is accepting the connection and answering).
    2. If you issue the same command from a remote console and get the Connection Refused error, it means that the port 2837 on <srv_qa> is blocked for incoming connection from another box. There are usually two possible reasons for that (both are not related to RDS):


    • There is a firewall between the Console and the server and port 2837 is not open for connection into the server <srv_qa>.


    • There is internal IP security definition on <srv_qa> itself (like hosts.allow or hosts.deny or just IP security) that prevents connection from an external box to <srv_qa> over port 2837.


    NOTE:
    When working with NIS, you should change directory to /var/yp and run make. This will load the /etc/services file info the NIS information system. On some systems a reboot is required after doing the above, for the changes to take effect.

    ###
    Solaris 10 only: Check the state of the services by issuing the following commands. The services should be listed as "State: Online":

    svcs -x "network/rep*"
    svcs -x "network/fcopy*"


    If any of the services are listed as "State: Disabled", issue the following commands:

    svcadm enable svc:/network/repliweb_cm/tcp:default
    svcadm enable svc:/network/fcopy_server/tcp:default


    If any of the services are listed as "State: Maintenance", issue the following commands:

    svcadm clear svc:/network/repliweb_cm/tcp:default
    svcadm clear svc:/network/fcopy_server/tcp:default


    Check the state of the services again. The services should now be listed as "State: Online".

  4. #4
    kiaralaurent is offline Junior Member
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    CDMA technology

    hi, i am learning about cdma technology and it is very interesting. it is a multiple access technique, where multiple transmitters can send information simultaneously over a single communication channel and also multiple receivers can receive data at a one given point. i am learning online from the sources that give me even basic information like What is the full form of CDMA very helpfully.

  5. #5
    kiaralaurent is offline Junior Member
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    Cdma help

    hi, i am learning about cdma technology and it is very interesting. it is a multiple access technique, where multiple transmitters can send information simultaneously over a single communication channel and also multiple receivers can receive data at a one given point. i am learning online from the sources that give me even basic information like What is the full form of CDMA very helpfully.

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