FW: Tomcat Unable to disable TLSv1.1 in protocol="org.apache.coyote.http11.Http11NioProtocol"

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FW: Tomcat Unable to disable TLSv1.1 in protocol="org.apache.coyote.http11.Http11NioProtocol"

Eric Lee

I'm running Tomcat on JRE 1.8.0_241-b07 on Solaris 5.11. Like many other people, I've failed to disable TLSv1, TLSv1.1 etc.

Here is a snippet of server.xml:

    <Connector port="443" protocol="org.apache.coyote.http11.Http11NioProtocol"


               maxThreads="150" SSLEnabled="true">








                         type="RSA" />



In fact, configuring any of these had absolutely no effect all and no message or error in catalina.out:




Tomcat continues to happily allow a TLS1 connection:

$ openssl s_client -connect</dev/null -tls1


SSL handshake has read 3121 bytes and written 321 bytes


New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-SHA

Server public key is 2048 bit

Secure Renegotiation IS supported

Compression: NONE

Expansion: NONE

No ALPN negotiated


    Protocol  : TLSv1

    Cipher    : ECDHE-RSA-AES256-SHA

    Session-ID: 5FFD6A60DF76BF269E4E2AFF6FAFEA58F85FBE381803355B76C2056B663B98C7


    Master-Key: FFD11889EC7BEF958EA1D0D00E57A04BF1F283EE27632B75E1AD1D7DAAE83510AC85CD7E890A58A7F7C0C6F0B56F0C61

    Key-Arg   : None

    PSK identity: None

    PSK identity hint: None

    SRP username: None

    Start Time: 1610443360

    Timeout   : 7200 (sec)

    Verify return code: 20 (unable to get local issuer certificate)

Best regards

Eric Lee

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