DAQ test computer

Instructions for setting up a DAQ test computer

Elliott Wolin, 20-Aug-2008

Instructions for configuring a Hall D DAQ computer for stand-alone operation, after installing RHEL5 from JLab CD using standard halld passwords. Instructions below assume host name moe.jlab.org and VxWorks processor pmt1.jlab.org, and that daq system is on a private ethernet (eth1) and not on eth0.

From the root account:

• create halld group gid=267

• create halld account id=500 with standard password, set halld as primary group

• have computer center mount /group/halld and /group/da, or at least allow the computer to mount them. If the latter:

     $ mkdir /group
     $ chmod a+rwx /group
     $ ln -s /misc/da /group/da
     $ ln -s /misc/halld /group/halld

• Edit /etc/auto.misc and add:

     da              -rw             jlabgrp:/vol/vol1/da
     halld           -rw             jlabgrp:/vol/vol1/halld

• and finally:

     $ mount -a

• yum install:
  • minicom
  • xinetd
  • ant
  • rsh-server
  • some-java-version (use yum search java)

• enable rsh in /etc/xinetd.d/rsh:

     socket_type             = stream
     wait                    = no
     user                    = root
     log_on_success          += USERID
     log_on_failure          += USERID
     server                  = /usr/sbin/in.rshd
     disable                 = no

• configure autostart of xinetd/rsh and ncsd:

     /sbin/chkconfig xinetd on
     /sbin/chkconfig nscd   on

• start xinetd and nscd:

     /sbin/service xinetd start
     /sbin/service nscd   start

or

     /etc/init.d/xinetd start
     /etc/init.d/nscd   start

• edit /etc/hosts:

     127.0.0.1       moe localhost localhost.localdomain moe.jlab.org
     ::1             localhost.localdomain   localhost
     192.168.1.2     pmt1    

• configure eth1 for static routing, IP address 192.168.1.1 using gui

• edit network files:
  • /etc/sysconfig/network-scripts/ifcfg-eth0

     PEERDNS=yes

• • /etc/sysconfig/network-scripts/ifcfg-eth1

     PEERDNS=no

• • /etc/sysconfig/network
    • turn IPv6 off
    • set hostname to moe

• activate eth1 (can also use gui):

     /sbin/ifup eth1

• edit /etc/sudoers and add:

     halld   ALL=(ALL)       ALL

• fix ttyS0 permisions for minicom. May be needed after every reboot:

     chmod a+rw /dev/ttyS0

• or from halld account:

     sudo chmod a+rw /dev/ttyS0

These can be done from halld account:

• copy files from /group/da/ejw/daq-config into halld home dir:
  • .complete.tcsh
  • .emacs
  • .cshrc
  • .alias
  • .login

• create /home/halld/.xemacs and copy from /group/da/ejw/daq-config:
  • init.el
  • custom.el

• create /home/halld/.rhosts:

     192.168.1.2
     pmt1.jlab.org

• set .rhost permissions:

     chmod u=rw .rhosts

• reboot if something is not working properly. Contact computer center if reboot doesn't help.