Re: [thredds] Help diagnosing server congestion

  • To: Sean Arms <sarms@xxxxxxxx>
  • Subject: Re: [thredds] Help diagnosing server congestion
  • From: tom cook <tmcook@xxxxxxxx>
  • Date: Thu, 28 Aug 2014 07:37:13 -0700
4.2.8 :)

On Thu, Aug 28, 2014 at 7:32 AM, Sean Arms <sarms@xxxxxxxx> wrote:
> Hi Tim,
>
> Which version of the TDS are you using?
>
> Thanks!
>
> Sean
>
>
> On Thu, Aug 28, 2014 at 8:21 AM, tom cook <tmcook@xxxxxxxx> wrote:
>>
>> Hi All,
>> I'm hoping you can help me with a more sysadmin type issue. Over the
>> past few days we have been unable to maintain a responsive TDS server
>> for 24 hours. The remedy is to restart tomcat and then we are good to
>> go. In the past, I've had issues with foreign IP addresses scanning
>> directories and initiating large NCSS downloads, but I've blocked
>> everything outside of the US. Looking through the logs, I'm seeing
>> mostly US Govt affiliated connections, and some ISP/AmazonCloud
>> servers. I kinda sorta know how to use netstat, but I'm having trouble
>> id'ing the culprit or the culprits. Admittedly, the hardware is old
>> (soon to be replaced), but I have a hunch this is related to NCSS,
>> since that was always the service that brought us down in the past.
>> So, I was wondering if any of you can help with suggestions/best
>> practices/tips that you use to monitor and secure your incoming
>> connections with TDS.
>> Thanks,
>> Tom
>>
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>
>
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