Making webpy framework accessible from outside the local network Post: 302879792

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Top Forums UNIX for Dummies Questions & Answers Making webpy framework accessible from outside the local network Post 302879792 by frad on Sunday 15th of December 2013 11:06:56 AM

12-15-2013

Registered User

Quote:

What your router/modem now does is called NAT (Network Address Translation): when it connects to your provider it is given a single official IP-address for its "outside"-interface. The "inside"-interface gets some local (private) address. When one of your systems try to connect to somewhere outside the router intercepts these packets, rewrites them using its official "outside"-IP and connects to the requested server itself. As an answer comes back it rewrites the package again using its "inside" address and then transmits it into the local network. This way the local addresses are never seen outside the local network.

This means you have to configure your router accordingly to allow for requests from outside to be directed to your webserver inside and the requests and answers be rewritten properly.

Could you please guide me how to set up the forwarding just to see it working (I see that the ips should updated manually)?

I make a guess, I should use a command like this:

Code:

iptables -t nat -A PREROUTING -j DNAT -d IP1 -p tcp --dport PORT_X --to IP2

PLease replace IP1 or IP2 with the IP assigned from my ISP and I find it via the "whatismyip" webpage and the IP that I see with the ifconfig command /etho or wlan

---------- Post updated at 11:06 AM ---------- Previous update was at 11:03 AM ----------

Do I guess correctly that the forwarding needs to be:

From local IP (eth0, wlan) to the ISP IP? and then the rest is done automatically?

frad

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LEARN ABOUT OSX

dispatch

dispatch(3)						   BSD Library Functions Manual 					       dispatch(3)

NAME

     dispatch -- the dispatch framework

SYNOPSIS

     #include <dispatch/dispatch.h>

DESCRIPTION

     The dispatch framework allows blocks to be scheduled for asynchronous and concurrent execution via the core functions described in
     dispatch_async(3) and dispatch_apply(3).

     Dispatch queues are the basic units of organization of blocks. Several queues are created by default, and applications may create additional
     queues for their own use. See dispatch_queue_create(3) for more information.

     Dispatch groups allow applications to track the progress of blocks submitted to queues and take action when the blocks complete. See
     dispatch_group_create(3) for more information.

     The dispatch framework also provides functions to monitor underlying system events and automatically submit event handler blocks to dispatch
     queues.

SEE ALSO

     dispatch_after(3), dispatch_api(3), dispatch_apply(3), dispatch_async(3), dispatch_data_create(3), dispatch_group_create(3),
     dispatch_io_create(3), dispatch_io_read(3), dispatch_object(3), dispatch_once(3), dispatch_queue_create(3), dispatch_semaphore_create(3),
     dispatch_source_create(3), dispatch_time(3)

Darwin								    May 1, 2009 							    Darwin