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Re: 20011002: halo in City College of New York

Unidata Support wrote:
> 
> ------- Forwarded Message
> 
> >To: "Unidata Support" <address@hidden>,
> >To: <address@hidden>,
> >To: <address@hidden>
> >cc: "Edward Hindman" <address@hidden>
> >From: "Xiaodong Yan" <address@hidden>
> >Subject: halo in City College of New York
> >Organization: UCAR/Unidata
> >Keywords: 200110021825.f92IPw115168
> 
> Dear Unidata support Personal,
> I am sending this email, asking for help with the weather station at City
> College.
> The host here halo.sci.ccny.cuny.edu isn't getting new data since last week.
> I checked the ldmd.log files. It keeps on saying" can't contact portmapper.
> .."
> 
> Can you guys give me a clue, what I can do with the current situation?
> 
> There is a possibility that the school's firewall is not keep the proper
> ports opened for halo since they are actively making modification recently
> few days. But I can't give a conclusion based on my knowledge. If you guys
> found out that's the problem I will work with school's central network
> administration to deal with the problem.
> 
> best regards,
> Xiaodong Yan
> =================================
> Mr. Xiaodong Yan
> System Administrator, Science Computing
> Room: Marshak Science Building, J-302
> City College of City University of New York
> New York, NY 10031
> Tel: 212.650.7885
> Email: address@hidden
> =================================
> 
> ------- End of Forwarded Message

Hi Xiaodong,

I did both an ldmping and a traceroute to your machine.  Here are the
results:

(anne) imogene:/opt/news/man 195 % ldmping halo.sci.ccny.cuny.edu
Oct 02 19:56:46      State    Elapsed Port   Remote_Host          
rpc_stat
Oct 02 19:56:56 SVC_UNAVAIL  10.008482    0   halo.sci.ccny.cuny.edu 
h_clnt_create(halo.sci.ccny.cuny.edu): Timed out while creating
connection
Oct 02 19:57:21  ADDRESSED   0.000006    0   halo.sci.ccny.cuny.edu 
h_clnt_create(halo.sci.ccny.cuny.edu): Timed out while creating
connection
^P
(anne) imogene:/opt/news/man 196 % ldmping halo.sci.ccny.cuny.edu -i5
Oct 02 19:57:50      State    Elapsed Port   Remote_Host          
rpc_stat
Oct 02 19:58:00 SVC_UNAVAIL  10.003324    0   halo.sci.ccny.cuny.edu 
h_clnt_create(halo.sci.ccny.cuny.edu): Timed out while creating
connection
Oct 02 19:58:05  ADDRESSED   0.000006    0   halo.sci.ccny.cuny.edu 
h_clnt_create(halo.sci.ccny.cuny.edu): Timed out while creating
connection
Oct 02 19:58:20      NAMED  10.019987    0   halo.sci.ccny.cuny.edu 
can't contact portmapper: RPC: Timed out
Oct 02 19:58:35 SVC_UNAVAIL   9.999896    0   halo.sci.ccny.cuny.edu 
h_clnt_create(halo.sci.ccny.cuny.edu): Timed out while creating
connection
Oct 02 19:58:40  ADDRESSED   0.000006    0   halo.sci.ccny.cuny.edu 
h_clnt_create(halo.sci.ccny.cuny.edu): Timed out while creating
connection
Oct 02 19:58:55      NAMED  10.029887    0   halo.sci.ccny.cuny.edu 
can't contact portmapper: RPC: Timed out
Oct 02 19:59:10 SVC_UNAVAIL  10.009776    0   halo.sci.ccny.cuny.edu 
h_clnt_create(halo.sci.ccny.cuny.edu): Timed out while creating
connection



This ldmping tells me that two things are happening.  One is a slow
connection, but we knew that was a problem for you, right?  The second
is that my LDM can't get to port 388 and is thus trying to contact the
portmapper.  



(anne) imogene:/opt/news/man 197 % traceroute halo.sci.ccny.cuny.edu
traceroute to halo.sci.ccny.cuny.edu (134.74.52.189), 30 hops max, 38
byte packets
 1  flra-n140 (128.117.140.252)  2.615 ms  0.478 ms  0.267 ms
 2  vbnsr-n2.ucar.edu (128.117.2.252)  0.824 ms  0.771 ms  0.646 ms
 3  internetr-n243-104.ucar.edu (128.117.243.106)  1.365 ms  0.977 ms 
0.832 ms
 4  frgp-gw-1.ucar.edu (128.117.243.114)  2.032 ms  2.893 ms  1.963 ms
 5  12.124.158.13 (12.124.158.13)  2.031 ms  1.971 ms  1.775 ms
 6  gbr2-p60.dvmco.ip.att.net (12.123.36.142)  3.894 ms  2.743 ms  2.600
ms
 7  gbr4-p80.dvmco.ip.att.net (12.122.5.29)  3.580 ms  2.848 ms  1.986
ms
 8  gbr4-p80.dlstx.ip.att.net (12.122.2.101)  23.099 ms  22.853 ms 
22.493 ms
 9  gbr3-p60.dlstx.ip.att.net (12.122.1.137)  23.771 ms  22.875 ms 
23.437 ms
10  gbr4-p20.attga.ip.att.net (12.122.2.90)  36.449 ms  37.105 ms 
36.671 ms
11  gbr4-p80.wswdc.ip.att.net (12.122.2.178)  51.837 ms  51.245 ms 
51.613 ms
12  gbr3-p60.wswdc.ip.att.net (12.122.1.129)  50.285 ms  50.091 ms 
49.909 ms
13  gbr3-p80.n54ny.ip.att.net (12.122.2.165)  58.421 ms  57.189 ms 
57.961 ms
14  gbr1-p100.n54ny.ip.att.net (12.122.1.150)  57.119 ms  56.107 ms 
55.928 ms
15  gar1-p360.n54ny.ip.att.net (12.123.1.129)  57.475 ms  57.759 ms 
57.427 ms
16  12.125.51.210 (12.125.51.210)  71.332 ms  69.256 ms  69.652 ms
17  at-gsr2-nyc-1-2-cuny-1.appliedtheory.net (169.130.253.130)  77.741
ms  77.208 ms  74.209 ms
18  128.228.179.67 (128.228.179.67)  74.474 ms  70.033 ms  68.761 ms
19  128.228.179.20 (128.228.179.20)  68.087 ms  69.043 ms  70.522 ms
20  128.228.92.38 (128.228.92.38)  144.028 ms  170.672 ms  121.928 ms
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

This traceroute shows either very slow connections or a firewall (or
firewalls) at your end.

I recommend that you contact the network people and ensure that they
have opened port 388.  Let me know when this has happened, and I'll try
the ldmping again to confirm that your machine is accessible.

Also, make sure that the portmapper is running on your machine. 
Currently, the LDM requires that the portmapper be running on the
localhost in order to start up.  To check this, just do "ps -ef | grep
portmap".  You should see a process called portmap or rpcbind running.   

Anne
-- 
***************************************************
Anne Wilson                     UCAR Unidata Program            
address@hidden                 P.O. Box 3000
                                  Boulder, CO  80307
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Unidata WWW server       http://www.unidata.ucar.edu/
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