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https://issues.apache.org/jira/browse/HADOOP-2474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12565416#action_12565416
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David Phillips commented on HADOOP-2474:
----------------------------------------
Updating DynDNS is easy using curl:
DYNDNS_USER=username
DYNDNS_PASS=password
echo "Updating DynDNS"
curl -k "https://$DYNDNS_USER:[EMAIL
PROTECTED]/nic/update?hostname=$MASTER_HOST&myip=$MASTER_IP"
echo
> Automate EC2 DynDNS setup
> -------------------------
>
> Key: HADOOP-2474
> URL: https://issues.apache.org/jira/browse/HADOOP-2474
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/ec2
> Reporter: Tom White
>
> Use the DynDNS webservice
> (https://www.dyndns.com/developers/specs/syntax.html) to automatically set up
> DNS for the EC2 cluster master node. If no DynDNS credentials are set (in
> hadoop-ec2-env.sh) then prompt the user to set up DNS manually (the existing
> behaviour).
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