Re: ORA-12560 From Oracle 11g.

telnet to the server on port 1521 from another server, see if you have
access

On 10/09/2007, Dhimant Patel <drp4kri@xxxxxxxxx> wrote:
>
> Hi All,
> I have recently installed Oracle 11g Enterprise Ed. on redhat EL4, after
> installing necessary patches. I have firewall enabled on this server. I also
> have disabled SELinux security policy. I have 11g instance running and TNS
> names configured.
>  Attempt to connect to this server fails with ORA-12560 errors. .
>

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