Description of problem:
On a working Satellite 6 instance, the configuration of Tomcat is bound to 0.0.0.0 (all interfaces). It is my understanding that the only web application running in Tomcat is Candlepin, which isn't meant to be directly accessible by end users. 

It is requested to update the configuration of tomcat to only bind itself to localhost (127.0.0.1). This would increase the security profile of the Satellite. Additionally, it would make it less likely for an end-user to directly interact with Candlepin, which is an unsupported use-case. 

Version-Release number of selected component (if applicable):
candlepin-tomcat6-0.9.23.1-1.el6.noarch
tomcat6-6.0.24-80.el6.x86_64


How reproducible:
100%

Steps to Reproduce:
1. Install Satellite 6
2. run lsof to see the open ports


Actual results:

[root@satellite ~]# lsof -P -i TCP:8080 -i TCP:8443 -i TCP:8009
COMMAND  PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
java    4840 tomcat   37u  IPv4  31798      0t0  TCP *:8080 (LISTEN)
java    4840 tomcat   43u  IPv4  31801      0t0  TCP *:8443 (LISTEN)
java    4840 tomcat   49u  IPv4  31817      0t0  TCP *:8009 (LISTEN)

3.

Expected results:

Tomcat should be bound only on localhost

Additional info:

Updating each connector in /etc/tomcat6/server.xml with the 'address="127.0.0.1' parameter binds tomcat to localhost. See below:

<Connector port="8080" address="127.0.0.1" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <!-- A "Connector" using the shared thread pool-->
    <!--
    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    -->
    <!-- Define a SSL HTTP/1.1 Connector on port 8443
         This connector uses the JSSE configuration, when using APR, the
         connector should be using the OpenSSL style configuration
         described in the APR documentation -->

    <Connector port="8443" address="127.0.0.1" protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="want" SSLProtocol="TLS"
               keystoreFile="conf/keystore"
               truststoreFile="conf/keystore"
               keystorePass="<REDACTED>"
               keystoreType="PKCS12"
               ciphers="SSL_RSA_WITH_3DES_EDE_CBC_SHA,
                    TLS_RSA_WITH_AES_256_CBC_SHA,
                    TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
                    TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
                    TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
                    TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
                    TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
                    TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA"
               truststorePass="<REDACTED>" />

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" address="127.0.0.1" protocol="AJP/1.3" redirectPort="8443" />