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  • Writer's pictureDimit Chadha

Enable & Run Tomcat as HTTPS

Updated: May 6, 2022

Enable Tomcat Application server in https mode i.e access your application as https://{appname} rather than http://{appname}


To enable first level security of your application deployed on tomcat, it is neccessary to run application with HTTPS protocol enabled. By default tomcat runs all applications on default protocol HTTP on port 8080. Follow the below steps to enable tomcat for HTTPS/SSL.

  • First prerequisite is to Create digital certificate ( refer javapathshala other post to - how to create digital certificate) & point tomcat to it as define below.

  • Navigate to /conf/server.xml

  • Turn SSL Engine ON. Look for “SSLEngine” & un-comment if commented


<ListenerSSLEngine="on"className="org.apache.catalina.core.AprLifecycleListener"/>
  • Comment out connector executor for non-SSL port 8080


<!--
<Connector executor="tomcatThreadPool"
    port="8080"
    protocol="HTTP/1.1"
    connectionTimeout="20000"
    redirectPort="8443" />
-->

  • Define a SSL HTTP/1.1 Connector on port 443

<Connector SSLEnabled="true"
           URIEncoding="UTF-8"
           keyAlias="tomcat"
           keystoreFile="${catalina.base}/conf/.keystore"
           port="443"
           protocol="org.apache.coyote.http11.Http11NioProtocol"
           scheme="https"
           secure="true"/>
           
<Connector clientAuth="false" 
           port="8443" 
           minSpareThreads="5" 
           maxSpareThreads="75"
           enableLookups="true" 
           disableUploadTimeout="true"
           acceptCount="100" 
           maxThreads="200"
           scheme="https" 
           secure="true" 
           SSLEnabled="true"
           keystoreFile="${catalina.home}/conf/Dimit.jks"
           keystoreType="JKS" 
           keystorePass="dimit123"
           truststoreFile="${catalina.home}/conf/cacerts.jks"
           truststoreType="JKS" 
           truststorePass="dimit123"
           SSLVerifyClient="require"
           SSLEngine="on"
           SSLVerifyDepth="2" 
           sslProtocol="TLS1.2v"
/>

Access Tomcat as https://localhost:8443

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