[LDM #RTQ-862032]: Internal Server to External issue

Hi Tiffany,

> I am not sure what you mean by differing from the Unidata LDM?

You mentioned that you were using SRPHYLDM -- so I thought it might be a 
modified version of the Unidata LDM.

> It just has the latest version of LDM installed on it.
> I know for our SRPWIT03 machine it is on the 6.13.1 version -- so that does 
> differ. I wouldn't mind updating once this migration of our 5 servers is 
> complete.
> 
> I was also able to get it to work with:
> ALLOW ANY     "10.1.142.77"
> OR
> ALLOW ANY     "srpwit03.srp.gov"
> I know it expects a pattern there (so that may be why) but I was just 
> following what our old configs have that seemed to work before.

Did you edit the file on a non-Unix system (Windows, for example)?. If so, then 
there might be extraneous characters in the file. You can check for this via 
the command "od -c".

The third field in an ALLOW entry is an extended regular expression. Therefore, 
your entry

    ALLOW ANY "10.1.142.77"

will match host "evil10x1y142z77.bwa.ha.ha.mordor.com" and is better written as

    ALLOW ANY ^10\.1\.142\.77$

The "^" and "$" anchor-characters require that the match start at the beginning 
of the string and end at the end of the string. See 
<https://www.unidata.ucar.edu/software/ldm/ldm-current/basics/ERE.html> for 
more information.

> I am, however, still seeing issues seeing the downstream server (SRPWIT03 
> 10.1.142.77) receive the data it is requesting upstream from SRPHYLDM01.
> I can see in the notifyme -vl- -h srphyldm01 that it is receiving the data, 
> but SRPWIT03 does not show it in the queue through ldmadmin watch or notifyme.
> It has the same request lines as the old server (nothing changed on them). I 
> can only test a few at a time because SRPWIT03 is a current production server 
> and I had to stop due to weather conditions. Additionally, I am not really 
> seeing any errors in the logs for this...it just isn't coming through. I can 
> check again later once the weather clears.

Can you see the LDM log file on SRPHYLDM01? Is there anything relevant in it or 
the LDM log file on SRPWIT03?

> I have had quite the time with this :) Thanks for your patience and help!

No worries. This is why we're here.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: RTQ-862032
Department: Support LDM
Priority: Normal
Status: Closed
===================
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata 
inquiry tracking system and then made publicly available through the web.  If 
you do not want to have your interactions made available in this way, you must 
let us know in each email you send to us.