IP Address, domainames, local networks
 

Hi,
i am a student of computers, we have not studied computer networks in our college yet.

i am very much interested about ip adresses and networking stuff.

like,, all web domain names have ip adresses associated with them.

and each computer in the internet has its own ip address, either static or dynamic.

I am not clear with this ip address topology..

what if i want to get connected to a computer which is in a local network with ip xx.xx.xx.xx and it is connected to internet through a server which has a ip adress xy.xy.xy.xy so it would be like i want to connect like this

(my system)-------> xy.xy.xy.xy -------> xx.xx.xx.xx

i read about reverse shell, but is there any direct way to get connected if i have login id and passwork of a computer inside a local network?

please tell me how this works or else direct me to any tutorial on web.

thanks in advance. :)

You can't connect to something behind a firewall unless ports are forwarded to it. What you can do is from inside the firewall make a reverse connection to a server outside and then access back across that.

Reverse shell? Not the sort of thing they tend to talk about in education, sounds more like you read a hacking forum or tutorial there. ;)

hi;

@rweaver
thank you all for replying;

@Tinkster
i found that link useful.. that was exactly what i was searching for, but had no idea where to search,,

@jamescondron
hi, actually i know how to establish reverse shell (thanks to some online tutorials ), but i want to know what is basics, why we need to use reverse shell to do that!; how private network work works, yeah i read hacking tutorials too, but that is for gaining knowledge :)

As you have said each domain name has its own ip address.This ip address will be received while hosting the domain name(provided by the hosting company).You can find the ip address for any domain names from the website ip-details.comfor free of cost.Regarding network ip address,it can be set by ourself.There are several class(A,B,C,D,E)of ip address are available.From that you can set any one(except some classes reserved for branded company)to your LAN network connections.If not making any sense better try a simple course on networking to get clear idea.sorry...

Here's a great tutorial on subnetting.

You can tell from the HTML that he wrote it some time ago (it used to be on a dot-edu domain). My guess is that he no longer works there and ported it to his personal site, but the principles of subnetting have not changed.

http://www.ralphb.net/IPSubnet/index.html