On 7 Feb 2005 19:48:45 -0800, gbeck01@snet.net wrote:

>Hi,
>
>I have installed Oracle 9iR2 on Suse 9. I'm pretty sure that my TNS is
>setup correctly (since I have done this before on Windows boxes several
>times without incident). I can start the listener and the database no
>problem. I can connect locally via OEM or SQLPlus. I can also tnsping
>my instance (again, locally).
>
>When I try to tnsping from a remote PC I get a " TNS: operation timed
>Out" message. I'm pretty sure that my DNS is setup okay since I can
>ping the Linux box remotely and ftp to it using the hostname used in my
>tnsnames.ora file. Is there something special I need to do to enable
>ports 1521 and 1526? It is almost like the Linux boxis ignoring the
>incoming requests for those ports. I see nothing in the listener log
>indicating an attempt to ping (or connect). Is this a firewall issue?
>How do I check this and where do I start? Sorry if there is a stupid
>answer, I'm relatively new to Linux.
>
>Thanks for any assistance
>
>
>Thanks,
>Gerard
>gbeck01@snet.net

12535 is mostly a firewall issue
Just issue
telnet <host> <affected port>
into the machine to see whether the port is really open.


--
Sybrand Bakker, Senior Oracle DBA