java - Cipher Options In Tomcat -


i see 2 ways use cipher , tls1_2 tomcat.

add java startup options 

-dhttps.protocols=tlsv1.2 -dhttps.ciphersuites=tls_ecdhe_rsa_with_aes_128_cbc_sha256

or

edit server.xml, in connector block

<connector sslprotocol="tlsv1.2" ciphers="tls_ecdhe_rsa_with_aes_128_cbc_sha256" ....>

my question is, both required? 1 trump other? 1 preferred?

if choose server.xml, sslenabled="false" have set "true".


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