[cs631apue] Testing the server
Jan Schaumann
jschauma at stevens.edu
Sat Nov 2 15:20:29 EDT 2013
hao wu <hwu9 at stevens.edu> wrote:
> It may be due to some firewall policy.
It's true that some connections between hosts may be affected by certain
firewall rules, but in those cases you would see a different error.
More specifically, your connection would time out completely or be
immediately reset; when you get the error "connection refused", then
your packet did make it through to the other side but just didn't find a
port open there.
Run
ns -l 12345
on one of the hosts on linux-lab.cs.stevens-tech.edu and try to telnet
to it from another host in linux-lab.cs.stevens-tech.edu versus another
host from another network (such as when you're at home).
-Jan
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