NSF Unidata

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[IDD #XEM-791908]: LDM Server and GFS

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.



Hi Reymer,

Sorry for taking so long to get back to you on getting a feed on
idd.cise-nsf.gov...

re:
> Let me show you some information:
> 
> #################
> # About DNS
> #################
> 
> $ nslookup poseidon.fisica.ucr.ac.cr
> Server:         163.178.88.2
> Address:        163.178.88.2#53
> 
> Non-authoritative answer:
> Name:   poseidon.fisica.ucr.ac.cr
> Address: 163.178.110.222
> 
> $ dig @8.8.8.8 poseidon.fisica.ucr.ac.cr
> 
> ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_5.3 <<>> @8.8.8.8
> poseidon.fisica.ucr.ac.cr
> ; (1 server found)
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58473
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
> 
> ;; QUESTION SECTION:
> ;poseidon.fisica.ucr.ac.cr.     IN      A
> 
> ;; ANSWER SECTION:
> poseidon.fisica.ucr.ac.cr. 86400 IN     A       163.178.110.222
> 
> ;; Query time: 536 msec
> ;; SERVER: 8.8.8.8#53(8.8.8.8)
> ;; WHEN: Mon Apr  4 17:08:58 2011
> ;; MSG SIZE  rcvd: 59
> 
> 
> $ nslookup cluster.fisica.ucr.ac.cr
> Server:         163.178.88.2
> Address:        163.178.88.2#53
> 
> Non-authoritative answer:
> Name:   cluster.fisica.ucr.ac.cr
> Address: 200.9.33.37
> 
> $ dig @8.8.8.8 cluster.fisica.ucr.ac.cr

The problem is that reverse name lookup is not working.  Here
are the results on the machine we want you to feed from
(idd.cise-nsf.gov):

/local/ldm% nslookup poseidon.fisica.ucr.ac.cr
Server:         192.12.209.57
Address:        192.12.209.57#53

Non-authoritative answer:
Name:   poseidon.fisica.ucr.ac.cr
Address: 163.178.110.222

/local/ldm% nslookup 163.178.110.222
Server:         192.12.209.57
Address:        192.12.209.57#53

** server can't find 222.110.178.163.in-addr.arpa.: NXDOMAIN

/local/ldm% nslookup cluster.fisica.ucr.ac.cr
Server:         192.12.209.57
Address:        192.12.209.57#53

Non-authoritative answer:
Name:   cluster.fisica.ucr.ac.cr
Address: 200.9.33.37

/local/ldm% nslookup 200.9.33.37
Server:         192.12.209.57
Address:        192.12.209.57#53

** server can't find 37.33.9.200.in-addr.arpa.: NXDOMAIN

Is it not possible to work with the UCR network folks to
get both forward and reverse DNS setup for these machines?

re:
> #############
> # ABOUT LDM
> #############
> 
> //from poseidon.fisica.ucr.ac.cr (internet1)
> 
> $notifyme -v -f ANY -h idd.cise-nsf.gov
> 
> //Nothing

OK, this is very surprising because I "hardwired" things on
idd.cise-nsf.gov to recognize poseidon.fisica.ucar.ac.cr.  I
did this by adding an IP <-> name entry in the /etc/hosts
file on idd.cise-nsf.gov, and it is setup to use definitions
in /etc/hosts in preference to those from DNS servers.  Given
this, I expect that you don't actually have a route to idd.cise-nsf.gov.

re:
> //from cluster.fisica.ucr.ac.cr (internet2)
> 
> $notifyme -v -f ANY -h idd.cise-nsf.gov
> 
> //Nothing

I have not tried to "hardwire" a definition for cluster.fisica.ucr.ac.cr
yet.  I want to make sure that poseidon.fisica.ucar.ac.cr can be setup
to work first.

Cheers,

Tom
--
****************************************************************************
Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
----------------------------------------------------------------------------
Unidata HomePage                       http://www.unidata.ucar.edu
****************************************************************************


Ticket Details
===================
Ticket ID: XEM-791908
Department: Support IDD
Priority: High
Status: Closed