FWIW, I am running a service that queries eutils.

They have a rate limitation, but I do stay under that, AFAICT. Maybe
multiple bots from the same host, together, triggered a rate limiting
mechanism?

On Fri, Jun 14, 2019 at 5:56 PM Alex Monk <[email protected]> wrote:

> I looked at `dig eutils.ncbi.nlm.nih.gov +trace` and at `strace -f dig
> eutils.ncbi.nlm.nih.gov +trace` - it looks to me like NIH's nameservers
> are not willing to serve labs?
>
>
> On Fri, 14 Jun 2019 at 05:59, Konrad Koehler via Cloud <
> [email protected]> wrote:
>
>> The following tool has been running without problem for years:
>>
>>  https://tools.wmflabs.org/citation-template-filling/cgi-bin/index.cgi
>>
>> Recently the tool has started generating the following error message:
>>
>> Can't call method "findnodes" on an undefined value at
>> /data/project/citation-template-filling/perl/ActivePerl-5.26/site/lib/WWW/Search/PubMedLite.pm
>> line 117.
>>
>> PubMedLite.pm in turn makes a request to  “'
>> https://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi” for data.
>> For debugging, I queried the entrez server using an equivalent command in
>> curl which generated the following error messages:
>>
>> curl '
>> https://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pubmed&id=12345&retmode=xml
>> '
>>
>> curl: (6) Could not resolve host: eutils.ncbi.nlm.nih.gov
>>
>> I also tried replacing “eutils.ncbi.nlm.nih.gov” with its IP address:
>>
>> curl 'https://130.14.29.110/entrez/eutils/efetch.fcgi?db=pubmed&id=12345'
>>
>> curl: (51) SSL: no alternative certificate subject name matches target
>> host name '130.14.29.110'
>>
>> The same curl command runs without problem on my local workstation:
>>
>> curl '
>> https://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pubmed&id=12345&retmode=xml
>> ’
>>
>> <!DOCTYPE PubmedArticleSet PUBLIC "-//NLM//DTD PubMedArticle, 1st January
>> 2019//EN" "https://dtd.nlm.nih.gov/ncbi/pubmed/out/pubmed_190101.dtd";> …
>>
>> Anyone have an idea how to fix this?  Thanks,
>>
>> Boghog
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