Yes i know this fix, i just want to know, waht is deafult cipher deatil, in my existing server.xml no cipher parameter value is mentioned.So please help me to understand the same.
> Date: Thu, 1 Oct 2015 10:26:43 +0530 > Subject: Re: logjam attacks in tomcat 7 > From: srikanth.hu...@gmail.com > To: users@tomcat.apache.org > > Configuration like mentioned below should be able to resolve your issue: > > <Connector port="{{ https_port }}" > protocol="org.apache.coyote.http11.Http11Protocol" SSLEnabled="true" > maxThreads="150" scheme="https" secure="true" > keystoreType="JKS" keystoreFile="{{path_to_keystore}}" > keystorePass="{{ keystore_password }}" > clientAuth="false" sslEnabledProtocols="TLSv1, TLSv1.1, > TLSv1.2" > > ciphers="TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, > > TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_RC4_128_SHA, > > TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA256, > TLS_RSA_WITH_AES_256_CBC_SHA,SSL_RSA_WITH_RC4_128_SHA" /> > > Srikanth Hugar > www.gharki.com > > > > On Thu, Oct 1, 2015 at 10:22 AM, Rahul Singh <rksing...@hotmail.com> wrote: > > > Dear Tomcat Support Team,Thanks for your continuous support. > > In our Application Tomcat V 7.0.54 is used. We are facing the problem of > > "Server has a weak, ephemeral Diffie-Hellman public key > > ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY" > > In chrome browser. > > Tomcat server .xml have following configuration, which does not contain > > chipher, it means it used default cipher. > > ================================================================<Connector > > port="8585" minSpareThreads="5" enableLookups="true" > > redirectPort="8282" acceptCount="32" > > connectionTimeout="60000"/> <Connector port="8282" minSpareThreads="5" > > SSLEnabled="true" enableLookups="true" > > acceptCount="32" scheme="https" secure="true" > > clientAuth="false" sslEnabledProtocols="TLSv1.2" > > > > algorithm="SunX509"/>================================================================ > > Underline JAVA is : OpenJDK Runtime Environment (rhel-2.5.5.3.el6-x86_64 > > u79-b14) > > So could ypu please assist me to understand the following things. > > 1- What value of default cipher is using in My application.2- Does it > > require to update for working with lates Browser chrome and fixing the > > "Diffie-Hellman" security issue. > > Regards,Rahul kumar Singh