Redhat 7.1 port access

Hi,
I have recently upgraded to RedHat 7.1 from 7.0. I
used to use Sybase database server on this machine.
It now does not work for outside access. I did not
install the firewall. Is there any thing that I need
to enable on the machine to get access to the Sybase
listener port from another machine?

Thanks,
naren

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