[jira] [Created] (NIFI-7758) Site-to-Site and ListenTCP unnecessarily perform Reverse DNS Lookup

["Mark Payne (Jira)" <ji...@apache.org>]

Mark Payne created NIFI-7758:
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             Summary: Site-to-Site and ListenTCP unnecessarily perform Reverse DNS Lookup
                 Key: NIFI-7758
                 URL: https://issues.apache.org/jira/browse/NIFI-7758
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework, Extensions
            Reporter: Mark Payne
            Assignee: Mark Payne


The SSLSocketChannel class in nifi-security-utils obtains the remote address's hostname via a call to InetAddress.getHostName():
{code}
final Socket socket = socketChannel.socket();
this.hostname = socket.getInetAddress().getHostName();
{code}

This hostname is captured only for use in the message of Exceptions or logging and not programmatically. The use of this reverse DNS lookup, though, can be expensive and cause long delays in an environment where reverse DNS lookups are not available. As a result, we should use InetAddress.toString() instead, which will provide the hostname, if it is available, and the IP address without performing a reverse DNS lookup.



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