Well, judeing from the output of nmap, I think it safe to say we know
why you're getting a connection refused when you try to telnet to
9734... there's nothing running on 9734.
I bet you don't have any trouble connecting to the standard telnet
port, so what happens when you just `telnet localhost`?
> > Use `netstat -nl | grep -- ^tcp` to identify listening services and
> > `lsof -i:<port>` (where "<port>" is the port-number identified by
> > netstat) to identify what service is listening on said port. Once
> > you've verified what port you're connecting to, show us a listing of
> > your ipchains (`iptables -nL`) rules.
> > If `netstat` and `lsof` are foreign to you, use `nmap -p 1-65535
> > localhost` to see what services you've got open...I get this:
> # nmap -p 1-65535 localhost
> Starting Nmap 4.11 (http://www.insecure.org/nmap/) at 2006-11-19
> 15:21 WET
> Interesting ports on localhost.localdomain (127.0.0.1):
> Not shown: 65522 closed ports
> PORT STATE SERVICE
> 22/tcp open ssh
> 23/tcp open telnet
> 25/tcp open smtp
> 111/tcp open rpcbind
> 139/tcp open netbios-ssn
> 445/tcp open microsoft-ds
> 631/tcp open ipp
> 885/tcp open unknown
> 904/tcp open unknown
> 2207/tcp open unknown
> 2208/tcp open unknown
> 8000/tcp open http-alt
> 10000/tcp open snet-sensor-mgmt
> Nmap finished: 1 IP address (1 host up) scanned in 3.442 seconds
> > > > > $ telnet localhost 9734
> > > > > Trying 127.0.0.1...
> > > > > telnet: connect to address 127.0.0.1: Connection refused
> > > > > telnet: Unable to connect to remote host: Connection refused
> > > > > $
> > > > > I am running Fedora Core 6 and I have the telnet-server package
> > > > > installed.
> > > > Where did '9734' come from?I am trying to use the Ryacas package and from its site I get the
> > > following:
> > > ?2. Telnet problems. If you are unable to get a connection at all try
> > > to connect to yacas manually using:
> > > telnet localhost 9734
> > > and if that fails there is likely a configuration problem with telnet
> > > on your machine.?
> > > Ryacas is a package of R and its site is at
> > >http://code.google.com/p/ryacas/
> > > Paul