https://issues.apache.org/bugzilla/show_bug.cgi?id=46868

           Summary: SocketHUBAppender: Allow restriction of binding to
                    localhost or local interface (with patch)
           Product: Log4j
           Version: 1.2
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Appender
        AssignedTo: [email protected]
        ReportedBy: [email protected]


Created an attachment (id=23392)
 --> (https://issues.apache.org/bugzilla/attachment.cgi?id=23392)
socket-hub-appender--restrict-bind.patch

Hi,

the SocketHUBAppender opens a TCP server sockets and waits for connections by
clients. It will then send the log events to those clients.

While this is a very cool feature during development it is not desireable to
allow anyone on the internet to connect to this port and receive logging
events.

The attached untested patch adds a new property "BindAddress". If it is set to
a non-null value, the server socket will only bind to the interfaced identified
by this ip-address.

Note: This patch is totally compatible because an unset "BindAddress" property
will show the old behaviour of binding to all interfaces.

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