[NOAAPORT #GGP-872890]: New Noaaport server with ldm

Hi Heather,

I just finished talking to our system administrator about your 
struggles getting NOAAPort to work.  Here are some ideas:

- if you simply added the two lines I sent you previously
  to /etc/sysctl.conf, it may be the case that one of the
  settings is replicated, and the original one is the one
  that is being used

  Please check your /etc/sysctl.conf file and make sure
  that there is only one line that sets
  net.ipv4.conf.default.rp_filter

  If you have more than one line, please comment out the
  line that is NOT:

#
# Enable DVBS reception
#
net.ipv4.conf.default.rp_filter = 2

  If you have to comment out another line that is setting
  net.ipv4.conf.default.rp_filter, you will need to reboot
  to effect the change (this is not strictly true, but it
  is the simplest, most straightforward way to get to where
  you want!)

- instead of sending the output of 'route', please send the
  output of:

  netstat -rn

  This will show the same sort of listing, but it will not
  try to resolve IP addresses into host names.

- the last time that we helped a site get NOAAPort ingest up and
  running under CentOS 7, we found that, in spite of their belief that
  firewalld was disabled or configured to allow all traffic on the
  Ethernet interface to which the Novra was connected, the firewall
  was, in fact, still on and it was blocking the traffic

  I commented previously that one way to test this is to turn off
  the firewall completely and then see if the LDM can read the
  UDP stream being sent from the Novra.  Since I seem to recall
  that all of your machines are behind a security perimeter (true?),
  turning off the firewall for a test should not cause a security
  uproar.

- one last thing that just occurred to me: is the LDM build
  complete?

  What I'm getting at is: did you give the 'root' password
  or 'ldm's password for sudo during the LDM build and install
  process?

  Several LDM routines _MUST_ get setuid root permissions in order
  to run correctly. For a LDM that is built with NOAAPort (--with-noaaport
  specified to 'configure'), the set of LDM utilities that need
  setuid root permission is:

  ldmd
  hupsyslog
  noaaportIngester
  dvbs_multicast

  Since you are using noaaportIngester, you don't need to care about
  dvbs_multicast, but the rest you absolutely do have to be concerned
  with.

  A long listing of the ~ldm/bin directory should show these files with
  the setuid root permission set:

<as 'ldm'>
ls -alt ~ldm/bin
drwxr-xr-x 2 ldm  ustaff   4096 Feb  3 15:09 .
 ...
-rwsr-xr-- 1 root ustaff  61332 Feb  3 15:09 ldmd
 ...
-rwsr-xr-- 1 root ustaff  11484 Feb  3 15:09 hupsyslog
 ...
-rwsr-xr-- 1 root ustaff 405240 Feb  3 15:09 noaaportIngester
 ...
-rwsr-xr-- 1 root ustaff 323636 Feb  3 15:09 dvbs_multicast

  If these routines do not have the setuid root capability set,
  the LDM and NOAAPort ingestion will not work/work correctly.



Cheers,

Tom
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Ticket Details
===================
Ticket ID: GGP-872890
Department: Support NOAAPORT
Priority: Normal
Status: Closed
===================
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