Java error in XPress Station when telnet received.

SeanR · 21-11-2018 10:01:33

Is it correct to receive the following error when someone attempts to telnet on port 9751 to check connectivity?

12:01:49 -             - ****************************************************************************************************
12:01:49 -          - * Southern X Integrators        XPress/Station Started.  (X-Layer Version 9.1.11)
12:01:49 -          - ****************************************************************************************************
12:01:49 -             - 
12:01:49 -             - 0 Log files with prefix &gt;XPress/Station&lt; deleted from C:Program FilesSouthern X IntegratorsXPressStationlogs
12:01:49 -             - 
12:01:49 -             - Logging Level                             ==&gt; INFORMATION
12:01:49 -             - Log Directory                             ==&gt; C:Program FilesSouthern X IntegratorsXPressStationlogs
12:01:49 -             - Log file retention                        ==&gt; 7
12:01:49 - INFORMATION - Default output directory: C:Program FilesSouthern X IntegratorsXPressXmlOut
12:01:49 - INFORMATION - Other configured directories are: 
12:01:49 - INFORMATION - 1) (?i)^CustomFilenameHere~.*.xml$ : C:Program FilesSouthern X IntegratorsXPressXmlOutCustomFilename
12:01:49 - INFORMATION - Server is listening on port 9751
12:04:31 - ERROR       -  javax.net.ssl.SSLException: Socket error: Unrecognized SSL message, plaintext connection?
12:04:31 - WARNING     - Unrecognized client, possibly telnet session or similar non-SSL connection
12:11:59 - ERROR       -  javax.net.ssl.SSLException: Socket error: Unrecognized SSL message, plaintext connection?
12:11:59 - WARNING     - Unrecognized client, possibly telnet session or similar non-SSL connection

SeanR · 21-11-2018 10:22:35

Non SSL Connection

Yes, this message is correct, telnet operates without any encryption (plain text), where as Station expects SSL connections which are treated as a different kind connection.

This message "Unrecognized client, possibly telnet session or similar non-SSL connection" was added to to the log to indicate that the connection was either from telnet or a similar program not using the SSL protocol. There are some non-standard telnet-like tools that do offer SSL support though, however we have never needed them as we have the Station Tester application for this purpose.

SeanR · 21-11-2018 10:23:10

Yes that is correct, it is just warning you that a non SSL connection is attempting to connect. I am thinking though that we should change that level to Warning to make not sound so serious.

SeanR · 21-11-2018 10:23:54

We will just need to put in a specific check for that exact message as it's a general SSLSocket exception, which is a valid error in many other cases, but should be able to read the message text and give the warning message where applicable

SXI Forum

#1 21-11-2018 10:01:33

Java error in XPress Station when telnet received.

#2 21-11-2018 10:22:35

Re: Java error in XPress Station when telnet received.

#3 21-11-2018 10:23:10

Re: Java error in XPress Station when telnet received.

#4 21-11-2018 10:23:54

Re: Java error in XPress Station when telnet received.

Board footer