Re: Change telnet to another port?

["Chad S. Lauritsen" <csl@xxxxxxxxxxxxx>]

it would probably be easier to ask the provider to use a different port...I have
been looking thru the CFGTCP command on the 400,
if you do a '21' (work w/ related tables) and go to '1' (work with service table
entries) you *may* be able to change the telnet for tcp and udp protos to
something other than 23...then hopefully by restarting the telnet server, it
would bind to the new port specified in the services table. There didn't appear
to be any way to configure the telnet server/daemon using 'Configure
applications' under the CFGTCP menus. If the telnet daemon on the as/400 does
something similar to getprotobyname() as a UNIX host ostensibly would, changing
the value in the services table should suffice to get the as/400 telnet server
to listen/bind to a different port.

As for client access, I did a quick look and i didn't see any obvious way to
connect to a user-specified port. perhaps there is some registry hacking that
could enable this? Maybe I just missed it. One would think there *must* be a
way!

it is worth noting that the as/400 telnet client, when prompted and showing all
parameters, will enable the use of a user-specified port to connect to.

as for other clients, it just depends on whether the programmer(s) enabled
another port to connect to.

if your provider is nice, they may accommodate you by switching to some other
port. :-)


"William A.(Tony) Corbett" wrote:

> The provider who is (supposed to be) connecting up a DSL line for me is
> using port 23, telnet, for managing the router they're installing.  This
> blocks me out of using telnet.
> Can I change the configuration on my 170 to "listen" and use another
> port for telnet, ie., can I still access my AS400 using client access,
> which uses port 23 by default?
> Most all 5250 clients (based on my limited knowledge) use port 23 to
> "telnet" into the AS400...
> How do I change the AS400 configuration and the Client Access
> configuration to use another port?
> Any suggestions on which port to use?
>
> Your help is appreciated, thanks......
>
> --
> William A.(Tony) Corbett
> corbett@asresources.com
> http://www.asresources.com
> http://www.cbt400.com
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--
* Chad S. Lauritsen, Systems Administrator                       *
* Perfection Learning Corporation                                *
* 1000 North Second Avenue, Logan, IA 51546 712.644.2831 x 223   *
"Out of the overflow of the heart, the mouth speaks." --Jesus



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