tmelo49
asked on
TCP Socket listening but does not send ACK+SYN
Hello,
I have a server that we are running several QA tests on. One test involves a java client that connects to a java server (all on the same machine). If I do a netstat , I can see that the Java server is running and listening on port 30041. When i kick off the test, I can see the client attempt a connection to the server's socket. The client socket sits there in the SYN SENT state but never appears to receive an ACK+SYN from the server socket. The client process eventually gives up and dies. Does anyone have any suggestions on how to troubleshoot this problem on a Linux box? The firewall and SELinux are turned off. What logs should I be looking at? I tried running TCPDUMP but that did not provide me with any useful info. Any help would be appreciated.
I have a server that we are running several QA tests on. One test involves a java client that connects to a java server (all on the same machine). If I do a netstat , I can see that the Java server is running and listening on port 30041. When i kick off the test, I can see the client attempt a connection to the server's socket. The client socket sits there in the SYN SENT state but never appears to receive an ACK+SYN from the server socket. The client process eventually gives up and dies. Does anyone have any suggestions on how to troubleshoot this problem on a Linux box? The firewall and SELinux are turned off. What logs should I be looking at? I tried running TCPDUMP but that did not provide me with any useful info. Any help would be appreciated.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Is it totally self contained in VMWare? Or is it an IP address that is accessible from the rest of your LAN?
If it is self contained and all other functions are working related to DNS and other networking services, then I would think the problem would be within the software. Perhaps a configuration error?
Check the documentation and perhaps contact the software developer.
If it is self contained and all other functions are working related to DNS and other networking services, then I would think the problem would be within the software. Perhaps a configuration error?
Check the documentation and perhaps contact the software developer.
ASKER
It is an IP that is accessible from the rest of the network.
ASKER
I figured out the problem......incorrect hosts file entry for localhost .
ASKER
Thanks Trilotech. You put me on the right path.
No problem. Glad you got it!
ASKER