Can't connect to remote Sybase server running in Win XP

-1

My local application wants to connect to remote Sybase ASE-16 server hosted in XP machine. It's up and running and I can connect locally but not from another machine in the same domain. I can ping the box successfully, connect to Tomcat hosted/listening at #8080 in the same server(XP)from my machine but not Sybase at #2638. I had to open port for Tomcat to bypass firewall. But for some reason, Sybase still not working with the same procedure.

Netstat shows #2638 listening from local machine, but when I use Port Query to remote scan the port from my box, it says not listening. I am confused.

yonikawa

Posted 2016-08-08T17:18:24.830

Reputation: 119

Answers

Since you are saying it is hosted on XP - I would suggest checking Windows Firewall to make sure its listed as a trusted program. I had this exact problemm running a Minecraft server - all the ports were properly forwarded, but nothing could connect. It turns out Windows Firewall would not allow connections to it over public connections. Since Windows Firewall discriminates between different applications, this could explain why Tomcat is reachable but not Sybase.

Mobus Dorphin

Posted 2016-08-08T17:18:24.830

Reputation: 11

Thanks for the response. Yes it's the firewall causing the issue. I did try adding an exception on the port for Sybase on XP, then running the Port Qry.exe gives me status of not listening, if I remove port exception, it says 'Filtered' while running Sybase server all the time. if I comepletely disable FW then it works. – yonikawa – 2016-08-09T18:26:05.807