DynamicDns and PortForwarding

DynamicDns and PortForwarding

  22:02    Unknown

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DynamicDns and PortForwarding:

The ISP provides dynamic public ip address for every customer, dynamic means change the public ip address of our gateway or wifi router. So that we can't access the remote Desktop of the raspberry pi from outsite the local network.

The first way has the problem that a IP address is hard to remember. And, if you reboot your router, the IP address will change and you will have to give the new IP address to your friends, again. Very unpractical. Having a domain is more user friendly, easy to remember and does not change over time. The idea is that the domain in always pointing to your public IP.

To resolve this problem, we should use dynamic dns, there are several sites provides these service called dynamic dns, Let us set Dynamic Dns for our raspberry pi device.

First goto this website http://ip.raspctl.com/ and register here with your email id

in tha above pic. Abutech is the subdomain of the raspctl.com

so that after register, your domain name is yoursite.raspctl.com

in my case my domain name is abutech.raspctl.com

now install raspctl software for raspberry pi. So you put the following commands on the terminal

wget debrepo.krenel.org/raspctl.asc

then

cat raspctl.asc | sudo apt-key add -

then

echo "deb http://debrepo.krenel.org/ raspctl main" | sudo tee /etc/apt/sources.list.d/raspctl.list

and then update your pi usig following commands

sudo apt-get update

then install the software called raspctl-dynamicdns using following commands

sudo apt-get install raspctl-dynamicdns

after all is done.

Now you shoud login to your dashboard http://ip.raspctl.com/

you can now see the following pic.

Copy the UUID from dashboard. Then edit the configuration file

using the following command

leafpad /etc/raspctl/dynamic-dns.conf

now paste the uuid to this configuration file.

Then save it and exit. Put the following command to update your public ip to the raspctl.com

sudo raspctl-dynamicdns

Now the dynamic dns is successfully installed on your raspberry pi 3.

portforwarding:

now we should know about port forwarding, your public ip address is nothing but your router ip address, so that any requests are coming to your router only, not for your device. So that we should configure the router for forwarding any requests from the client to your device.

Open the router settings in browser using router's private ip, in my case my router's private ip addess is 192.168.1.1

configure the router using your raspberry pi ip address then save it.

now the portforwarding is successfully configured.