Lan Barnes wrote:
> On Wed, February 20, 2008 4:16 pm, Deke Clinger wrote:
>> On Wed, 20 Feb 2008, Lan Barnes wrote:
>>
>>> On Wed, February 20, 2008 3:59 pm, Deke Clinger wrote:
>>>> Believe Sony only allows port 80 outbound...try that maybe...
>>>>
>>>> -Deke
>>>>
>>> Wouldn't IE barf?
>> Not sure what IE has to do with it.
>
> IE browses on 80 form my desktop, no? And now putty will also be sending
> over it?
No. In general, clients initiate a connection by transmitting on an
ephemeral port to a known ("well-known") port on a given server. The
server responds to the client at the client-IP and client-port for that
specific connection.
So IE sends on 13579 to yahoo:80, putty sends on 13580 (maybe) on
lanbarns.net:80.
>
>> You run sshd on port 80 at home
>> (assuming inbound to port 80 is allowed by your ISP and you don't have
>> something running there already) and then configure putty accordingly.
>>
>
> Well, at home we all use 80 over NAT to surf the cloud. So if I tell my
> firewall, "send incoming 80 to server blatz," won't that screw browsing
> up?
>
No, same reason; see above scenario that distinguishes client behavior
from server behavior.
The screwup possibility is that you are already running a web server on
lanbarnes.net:80.
Of course, you could run your web server at lanbarns.net:22 if you
wanted. :-)
The other detail left out is that lanbarns.net is probably a gateway
that will forward the incoming ssh on 80 to 192.168.1.7:P, where P can
be, the usual 22, maybe.
Regards,
..jim
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