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20050629: Getting LDM on plane to receive via UCAR RAS and PPP (cont.)

>From:  Steve Emmerson <address@hidden>
>Organization:  UCAR/Unidata
>Keywords:  200506292117.j5TLHWjo001930

Hi Janet,

This is a quick follow-up on the note that Steve sent earlier.

re:
>    As the superuser (i.e., root):
>
>        1.  Change the ownership of the hupsyslog(1) utility,
>            $HOME/bin/hupsyslog, to "root" and then enable the setuid
>            bit.  This will enable proper rotation of the LDM logfiles.

The HOWTO for changing ownership of rpc.ldmd and hupsyslog can be
found in:

Unidata HomePage
http://www.unidata.ucar.edu

  LDM HomePage
  http://www.unidata.ucar.edu/content/software/ldm

    LDM 6.3.0
    http://my.unidata.ucar.edu/content/software/ldm/ldm-6.3.0/index.html

    Installing, Configuring, and Activating the LDM System in the LDM Basics 
webpages
    
http://my.unidata.ucar.edu/content/software/ldm/ldm-6.3.0/basics/index.html#installation

      Binary installation
      
http://my.unidata.ucar.edu/content/software/ldm/ldm-6.3.0/basics/binary-install-steps.html


On the last page, jump to the section that starts:

Make rpc.ldmd and hupsyslog set-uid-root

The procedure is:

cd $HOME/$VDIR/bin             <- e.g., cd ~ldm/ldm-6.3.0/bin
su
...
chown root rpc.ldmd hupsyslog
chmod u+srwx,g+rx,o+rx rpc.ldmd hupsyslog

Note that this step must be done as the superuser (i.e. root).

Cheers,

Tom

>I did the following:
>
>    1.  Commented-out the "exec pqbinstats" entry in the LDM
>        configuration-file, $HOME/etc/ldmd.conf, because it uses a lot
>        of the CPU for no good purpose.
>
>    2.  Commented-out the "exec pqact" entry in the LDM
>       configuration-file, $HOME/etc/ldmd.conf, because you don't seem
>       to be doing anything with the data (the pqact(1)
>       configuration-file, $HOME/etc/pqact.conf, appears to be the
>       example one that comes with the distribution).
>
>    3.  Added a crontab(1) entry to rotate the LDM logfile at midnight,
>       local time, every day.
>
>    4.  Added the entry
>
>           allow   ANY     ^[a-z].*\.atd\.ucar\.edu$
>
>       to the LDM configuration-file, $HOME/etc/ldmd.conf.  This might
>       be too general for you and you might want to restrict it to, for
>       example
>
>           allow   ANY     ^linus\.atd\.ucar\.edu$
>
>       An ALLOW entry like this has never been necessary -- that I can
>       recall.  I don't know why your situation is different.
>
>    5.  Restarted the LDM.  The command
>
>           ldmping
>
>       now works, as do the various rpcinfo(1) commands such as
>
>           rpcinfo -t linus 300029 6
>
>You should
>
>    As the superuser (i.e., root):
>
>        1.  Change the ownership of the hupsyslog(1) utility,
>            $HOME/bin/hupsyslog, to "root" and then enable the setuid
>            bit.  This will enable proper rotation of the LDM logfiles.
>
>       2.  Add the line
>
>               search atd.ucar.edu
>
>           to the top of the file /etc/resolv.conf.  It used to have
>           this.  Why was it removed?)
>
>    As the LDM user on another system, try to ldmping(1) the LDM on
>    Linus (I couldn't log onto Cirque).
>
>Regards,
>Steve Emmerson
>
>------- Original Message
>
>Date:    Wed, 29 Jun 2005 14:06:39 -0600
>From:    Janet Scannell <address@hidden>To:      Steve Emmerson <steve@unida
> t
>         a.ucar.edu>
>Subject: Re: Getting LDM on plane to receive via UCAR RAS and PPP
>
>Steve,
>
>The rcp.ldmd was not the right permissions, owner.  I fixed that and now 
>rcpinfo shows port 388 for the ldm port on linus.  (That's what happens 
>when you use someone else's install of ldm instead of reinstalling it 
>yourself.)
>
>rpcinfo -t linus 300029 6 from linus still does not work correctly.  I've chec
> k
>ed the allow lines in the conf file and restarted ldm and still the same behav
> i
>or.
>
>The ldmping from an outside host now gives a different error:
>ldmping linus.atd.ucar.edu
>Jun 29 19:34:14      State    Elapsed Port   Remote_Host           rpc_stat
>Jun 29 19:34:14  ADDRESSED   0.014074    0   linus.atd.ucar.edu  RPC: 
>Unable to receive; errno = Connection reset by peer
>
>which seems to be related to the rpcinfo command not working on linus.
>
>Sure, you are welcome to log onto linus and cirque.  I think the main 
>problem now is just linus and not cirque.  cirque is currently connected 
>to the internal network as cirque.atd.ucar.edu.
>
>Thanks,
>Janet
>
>
>------- End of Original Message
Cheers,

Tom
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