Create An Ftp Server On Your Computer

First of all u have to get an static IP-Address
Need a a static ip-address for ur FTP Server.Necessity for getting
this static ip-address is ur not suppose to use ur own IP-Address.The
main reason is u dont want to show ur IP-Address to everyone , there
are many other reasons too but leave them aside..

1. Goto no-ip & create urself a free account.
2. Now ur account been created & ll receive ur account password via mail to ur email address.
3. After getting ur password login to ur account of no-ip.com
4. After getting logged in, click upon add a HOST its on the left menu.
5. Type any hostname u want (eg:-abc) & select any domain from da given list (eg:-ftpserve.com) Click on Submit.
6. Now u have owned ur own static address (example: abc.serveftp.com)
7. Now click downloads button which is present above on the page & click on which operating system ur using & den download DNS update client or u can download it from here directly, this is for microsoft window users..
8. After getting downloaded, u have to install this software & login here with ur email addresss & p/w wen asked for it.
9. At last tick on da check box present at the static address.
10. U have ur own static web address.

Bypassing Firewalls using an FTP

As you probably know, a firewall is nothing more than a prebuilt set of rules that determines what happens on a network, or what did not happen there. However, if the firewall is poorly implemented or buggy, the override will be a breeze because the filtering rules normally could become important therefore totally useless.
Set a source port for its connections is one of many methods used to bypass a firewall. In fact, the Firewall check mainly the IP addresses and source ports and destination ports for each packet sent across the network, which allows to write rules far more easily. There are two categories of firewall, Stateless and Stateful. The Stateful Firewall, the opposite of Stateless memorize the state of connections (Connection Request, Connection established …).
However, certain applications or protocols such as FTP are a real problem for packet filtering. FTP indeed indicates that the server sends data from its port 20, to a client port. Therefore, if an administrator wants to allow the opportunity for guests to use its network for FTP clients, it will probably have to allow any packets whose source port is 20.
The attack is to discover the services normally hidden by performing a port scanning by configuring its packets whose source port is 20. Nmap offers this opportunity through the command option ‘-g’.
The challenges thereafter, once found an accessible, will ensure that all connections come from source port, providing access to the machine. In our case, this will be port 20 (Port link up for FTP). For this, different tools are already on the net.
These include, for example, AMP Fund, which is a tool for port forwarding. Indeed, by establishing a “AMP Fund-v-l 8080-s 20-r 80 , we bypass the firewall of the remote system, provided that the source port 20 is not filtered. There are also KevProxy, or a simple “kp 8080 80 20 v” can establish a tunnel to port 80 of the target machine.