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Steps to Reproduce:
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All is explained in the forum link provided.

Configure wildfly 8 to use a SSL certificate (I've used one with RSA 2048 bit key length).

you can enable SSL debugging server side if you want ( -Djavax.net.debug=SSL)

Open wireshark and sniff the traffic between the client and the server

Try to connect to the wildfly instance using openssl:
openssl s_client -connect serverip:443 (you can add -debug to get more info)

You can see that a DNS Lookup query is issued prior to the ServerHello Message.
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All is explained in the forum link provided. Configure wildfly 8 to use a SSL certificate (I've used one with RSA 2048 bit key length). you can enable SSL debugging server side if you want ( -Djavax.net.debug=SSL) Open wireshark and sniff the traffic between the client and the server Try to connect to the wildfly instance using openssl: openssl s_client -connect serverip:443 (you can add -debug to get more info) You can see that a DNS Lookup query is issued prior to the ServerHello Message.
Forum Reference:
https://community.jboss.org/message/864481#864481
Workaround:

Workaround Exists
Workaround Description:

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@Tomaz Cerar mentioned that there are few workaround available

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@Tomaz Cerar mentioned that there are few workaround available

SSLEngine seem to issue a DNS Reverse Lookup query during the handshake (prior to the ServerHello message) on Wildfly 8