This document has not been formally reviewed for accuracy and is provided "as is" for your convenience.
Summary
SNI is not supported in Tomcat http_ jars prior to version 4.5.3. The following jar files must be updated within the /webapps/ssc/WEB-INF/lib folder:
httpclient.jar
httpcore.jar
httpmime.jar
The recommended minimum versions to get SNI to work are:
httpclient-4.5.5.jar
httpcore-4.4.9.jar
httpmime-4.5.5.jar
Question
Communications are being refused from SSC to the target server when Server Name Indication (SNI) is in use. Applies to versions 17.10 and older
Answer
SNI is not supported in Tomcat http_ jars prior to version 4.5.3. The following jar files must be updated within the <tomcat>/webapps/ssc/WEB-INF/lib folder:
httpclient<version>.jar
httpcore<version>.jar
httpmime<version>.jar
The recommended minimum versions to get SNI to work are:
httpclient-4.5.5.jar
httpcore-4.4.9.jar
httpmime-4.5.5.jar