The NORSAR-3D Common Shot Wavefront Tracer- Batch uses r-services to communicate with remote machines.

  1. Check that rsh server is installed

    rpm -qa | grep -i rsh

    If not installed, install it. (It is not installed with the default installation of Suse.)
  2. Enable xinetd

    /sbin/chkconfig --list xinetd

    Check that it says on for 3 to 5. If not:

    /sbin/chkconfig --level 345 xinetd on
  3. Configure xinetd services

    cd /etc/xinetd.d

    Set disabled = no in rexec, rlogin, rsh

    These are server processes that are listening on TCP port 512, 513 and 514.

    Default: Suse off, RedHat on.
  4. Start xinetd

    Reboot the computer or start using the script /etc/rc.d/rc5.d/S*xinetd

On Suse most of this can be done in yast2 inetd. On RedHat some of this can be done in redhat-config-services.