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How do I use oobping to diagnose connection problems to the OOB Server?

Last Reviewed:
28th October 2008

Check the OOB Server is running on the correct machine and listening on the correct port:

oobping -h myserver -t 8888
Host: myserver, Port: 8888
Attempting connection...OK
Examining Server...
    OOB Server Version:
    OOB Server Name: OOB

Note oobping defaults the port to 8888 so you can omit -t.

Here oobping connects to port 8888 on the machine myserver where an OOB Server is clearly running as oobping reports it finds OOB Server version

If you specify the wrong port and some other service is listening on it you will get a variety or errors like the one below when pointing oobping at an SMTP server on port 25.

oobping -h myserver -t 25
Host: myserver, Port: 25

Failed to receive data
Packet (size=842149920) too big for buffer (size=256)

If there is nothing listening on the specified port then you will get a connection refused error and you should check the OOB Server is configured to use the port you specified and is running. For example:

oobping -h myserver -t 8889
Host: myserver, Port: 8889
Connection refused, connect(), after 5 attempts

If you have specified access control rules in the OOB Server then you might see an error such as this:

oobping -h myserver -t 8888
Host: myserver, Port: 8888
Client denied access due to access control rule.

Here the machine you are running oobping on has been denied access to the OOB Server. You should check the OOB Server access control rules on the security page of the OOB web administrator.

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