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connecting from public internet

Posted: Sat Jan 19, 2019 7:10 pm
by anandgp
Hi,
Good Morning! I just now registered to this forum. I am a software engineer with some limited knowledge in ip addresses and networking.
My questing is, I have developed a browser based software (oracle-apex) which runs locally on my laptop by giving url http://localhost:8093/apex

The port 8093 is what I have defined in that software. Other people in LAN network can connect to that software by referring to my host name. For example http://lab-computer:8093/apex

I want to know how people from public internet can connect to that software? I have created inbound firewall rule to open TCP port 8093. My system is connected to wireless LAN which has internet access. Can someone guide me on this?
Many Thanks.
-Anand

Re: connecting from public internet

Posted: Sun Jan 20, 2019 7:25 am
by Chrispcritters
If you've mapped port 8093 traffic from your public IP address on your firewall to the internal IP address of your system you would need to provide people: http://{public-ip-address}:8093/apex

Re: connecting from public internet

Posted: Mon Jan 21, 2019 6:44 am
by anandgp
Hi Chrispcritters,
Thanks for your reply. I thought, just by defining inbound firewall rule to open 8093 in my laptop, others from public internet, can open the application. By way of http://{public-ip-address}:8093/apex

But that did not happen. I have few confusions.
1. Every computer under LAN has their own IP address (or Host name)
2. I check "what is my IP" in google and I get an IP address. Hope that's public IP?
3. If yes, it is same public IP address for everyone in that LAN network?
4. If that's true, when I issue http://<public-ip>:..... from public internet, how it will know that request has to reach my "lab-computer" host itself to execute the software?

Is there any other things I need to do in the system so that I can access that program from external internet? Please clarify. Thanks.

-Anand

Re: connecting from public internet

Posted: Mon Jan 21, 2019 8:29 am
by Chrispcritters
Ah, when you said "firewall" I thought you were referring to your hardware firewall, not your computer firewall.

You would need to have a rule on the public facing hardware firewall that routes traffic for that port to your specific machine. If you're on a college campus that won't happen.

Re: connecting from public internet

Posted: Tue Jan 22, 2019 10:40 pm
by anandgp
No, I am having 3 systems connected to a wireless router provided by broad band service provider. Can you please let me know the steps in general.

I would also need to get same function (mentioned in thread # 3) when I am connected my laptop to a mobile hotspot. Please let me know the steps. Appreciate your help. Thanks.

Re: connecting from public internet

Posted: Wed Jan 23, 2019 6:31 pm
by anandgp
ok, let me open my 2nd question as a new thread. Thanks.