First try telnetting to the default port 23 and see what you get.
it sounds like you have nothing running on port 3510.
This does not sound like a firewall problem.
Get yourself the nmap portscanning package from 
http://www.insecure.org to check for open ports on the destination
box.
hth Willem

On Thu, 24 Oct 2002, cana rich wrote:

> 
> Hello,
> I am trying to make a telnet connection between two machine running RedHat.
> The first machine have the IP : 172.20.90.100
> The other one is 172.20.90.50
> When i make : "telnet 172.20.90.50 3510" from the first machine, i have an error 
>message "Connection refused".
> Could you tell me what's wrong?
> Is it because of the firwall? how to disable it?
> Thanks in advance for your help
> Canarich
> 
> 
> 
> ---------------------------------
> Yahoo! Mail -- Une adresse @yahoo.fr gratuite et en français !
> 

-- 
Willem van der Walt
Information Services Directorate
Department of Health
South Africa
tel: 27 12 3120700




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