[R] Ryacas not working properly

[Paul Smith]

On 19 Nov 2006 16:11:52 +0100, Peter Dalgaard <p.dalgaard at biostat.ku.dk> wrote:
> "Paul Smith" <phhs80 at gmail.com> writes:
>
> > On 11/19/06, Gabor Grothendieck <ggrothendieck at gmail.com> wrote:
> > > You might try posting your problem on the comp.os.linux.networking
> > > group since it appears to be a configuration problem with telnet
> > > on your machine.
> >
> > Thanks, Gabor. I am going to do that and I will let you know about the result.
>
> In particular, check whether you're firewalling yourself out.
> System/Administration/Security Level and Firewall -- I suspect that
> you have to add the ryacas port there. ("Suspect" meaning that I'm not
> sure that you really need this even for unprivileged ports on
> localhost, but it could be worth the try.)

Thanks, Peter. I put there port 9734, but no progress. Meanwhile, I
received this from someone on Fedora mailing list:

«------------ Original Message ------------
> Date: Sunday, November 19, 2006 01:34:23 PM +0000
> From: Paul Smith <phhs80 at gmail.com>
> To: For users of Fedora <fedora-list at redhat.com>
> Subject: Re: Enabling telnet
>
> On 11/19/06, Tim <ignored_mailbox at yahoo.com.au> wrote:
>> > What I am trying to accomplish is the following:
>> >
>> > http://marc.10east.com/?l=r-help&m=116389849302592&w=2
>>
>> Sounds like you don't want a telnet server, then.  But that you're
>> trying to use a telnet client to debug some other server, and the
>> problem is with *it*.  But I can't really tell what ryacas is about
>> from that message, nor a quick internet search on it.
>>
>> Otherwise, if you had a telnet server installed, and running per the
>> usual configuration, you could do "telnet localhost" in a command
>> line, and you'd be logging into another command line interface, just
>> as if you were logging into a computer through a network.
>
> Maybe the developers of Ryacas on R mailing list can help me further.
> According to the direction suggested by one of them,
>
> http://groups.google.com/group/comp.os.linux.networking/msg/656bbead5
> 059fc07
>
> I should change the file
>
> /etc/xinetd.d/telnet
>
> However, there is no such a file, unless I install telnet-server.
>

you don't want to touch the /etc/xinetd.d/telnet file (if you had one).
that file relates to control of the telnet daemon - which is what the
user in that google groups message was trying to get going.

you're not interested in the telnet daemon, rather in the ryacas one,
and that's what you should focus on trying to get working.  your issue
with not being able to connect to port 9734 is because you haven't
managed to get the ryacas daemon started up correctly. when you do, and
it shows up in a netstat, then all should be well.

in short, your problem is with setting up ryacas, not "enabling telnet".

in your context, your telnet client, which works just fine, has nothing
to do with your telnet daemon (which appears to not be enabled, which
is just fine).»

Paul