Can telnet port 80 but cannot ping!

[maitre at ccs.neu.edu (Brad Noyes)]

I don't know Red Hat's network software all that well, but i do understand
that they install a firewall. A firewall can have this effect. My advise is not
to fix this problem that you have, and to use other tools. Telnet is a 
particularly insecure way to access a machine remotely. Try ssh instead.
	ssh <host_name> -l <username>

offering these services (telnet) can make your machine appeal to hackers that 
want to gain access to your machine. I would certainly advise not to offer
telnet. ssh is installed by default on red hat so use that.

--brad



On Thu, Dec 06, 2001 at 10:02:05AM -0500, Ali Taalebi wrote:
> 
> 
> 
> I am running RedHat Linux 7.2 on a Compaq DeskPro.
> I can successfully:
> 	telnet <My-Host> 80
> 
> However, if I try:
> 	telnet <My-Host>
> it responds:
> 	"telnet: Unable to connect to ...."
> 
> I have also tried: 
> 	ping <My-Host>
> but it says:
> 	"no answer from h00045adc236a.ne.mediaone.net"
> 
> Any idea what steps I should take to make these services available 
> on my server? I should mention that I chose the telnet and other
> modules during my installation of of my Linux.
> 
> Many thanks in advance.
> >>Ali
> 
> 
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