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https://issues.apache.org/jira/browse/ZOOKEEPER-4268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17730607#comment-17730607
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Andor Molnar commented on ZOOKEEPER-4268:
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[~guoaomen]
Please provide more information. Is this an SSL-enabled setup?
In which case the client must verify if the server certificate is valid for
which fully qualified domain name is required. I think you can disable this by
setting ssl.hostnameVerification to false.
> Avoid Reverse DNS lookup if the hostname in connection string is literal IP
> address.
> ------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-4268
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4268
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.4.13, 3.4.14
> Reporter: guoaomen
> Priority: Major
>
> Fix https://issues.apache.org/jira/browse/ZOOKEEPER-2184, when the client
> connects to the server via ip, it will also perform dns reverse lookup. I
> think this shouldn’t be the case, dns reverse lookup should only work Domain
> name is valid
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