DIY Online Backup 

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      Create your own Online offsite Backup/Archive or Replicate/Archive/Backup files locally

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Backup local files

Free use on one computer

Backup to remote 

Professional version allows backup to remote off site computer

30 day free trial

Archives files

All changes and deletions are tracked, to allow restore to any backup point

Unlimited Backup Size

Size of backup is only limited by the size of your hard disk!

Handles Open Files

On XP/ Windows 2003

Fast and efficient 

remote backup data is heavily compressed and only changes in large files are updated

Uses Encryption 

128 bit when backing up to remote computers

Backup:

  Microsoft SQL *

   Microsoft Outlook

   My favorites

   My Documents

   My Music

   My Pictures

* = requires Professional version

                                              

Overcoming Firewalls Problems: DIY On-Line Backup


Two types of firewalls are common: 
  • Firstly most computers now have a personal firewall, which will stop incoming traffic, unless allowed in by either accepting the incoming traffic when asked to do so.  Also some personal fire wall systems may not ask, and simply block the traffic, in which case follow the following instructions.
  • The second type is called a NAT firewall.  This usually is implemented when many computers are on a network, and is a little bit more complicated.

Allowing Traffic through a personnel firewall


What is a Personal firewall?  

Answer: A Personal is a program which stops network traffic which has not allowed to talk to the outside world.  So in the case of our backup software, you must allow our software to talk to the outside world (Internet)

Most fire walls will ask you if you want to allow a program to communicate with the internet.  You must grant our software access, since it has to identify your account, and the other DIY Online Backup installations on your network.

Enabling Microsoft Personnel firewall

Blar, blar

Allowing Traffic through a NAT firewall


What is a NAT Firewall?

Answer: A NAT Firewall isolates all of you computers from the internet by stopping network traffic which has NOT originated from a computer within your network.  So in the following example "Computer A" can talk to "Home Computer", but the fire wall will block communication from "Home Computer" to "Computer A".

So when using DIY Online Backup, for the "Home Computer" to send backup files to "Computer A", the Network Traffic must be allowed through the Office NAT Firewall.  Of course at this point we have kept everything simple, we have not talked about IP address and IP Ports.  So here we go....

IP Addresses - Each computer on the internet is given an IP address, so when it requests data (Web Page, etc) other computers know who to send the appropriate data back too.  In the above example "Computer A" and "Computer B" share the same IP address on the internet.  But "Computer A" and "Computer B" have IP address on the internal "Office Network".

The routing or transmission between the "Office Network" and the internet is taken care of by the Router, which is usually in the same little balck box as the NAT Firewall (the one with the flashing lights).  So in the above example we need to program the NAT Firewall to allow traffic from the outside world to "Computer A" (IP 192.168.1.10).

We now need to explain one more point!

We have seen from the example we want  "Computer A" to listen for communication from "Home computer" when DIY On-line backup needs to write backup information to Computer A.  So how does DIY Online Backup know the traffic is for it?

Answer: The IP Addressing system also has the notion of Ports.  So when data is sent to a computer, the computer can route the traffic/data to the correct program which is going to process it.  Some Posts are allocated for specific jobs, such as 80 is for web browsers, 110 and 20 for e-mail sending and receiving, and so on.  By default On-Line Backup will listen on port 2222 onwards.

So we need to tell the NAT Firewall to forward all IP 88.23.41.2:2222 traffic to IP 192.168.1.10:2222.  DIY Online Backup will give you the exact IP address if it failed to communicate with another computer.   These address are just an example.

How do I allow communication through the NAT Firewall?

The first problem we are faced with is that the interface to allow traffic through a NAT firewall is different, depending on the brand.   Some NAT firewalls provide a simple utility, which is run from the computer which requires the incoming traffic, in the above case "Computer A".

DIY Online Backup will give you the exact IP address if it failed to communicate with another computer.

 

 

 

DIY Online Backup © ComTek Accounts 2005 

for Local/Remote Backup/Archive of Files and Folders

ComTek Accounts was founded in 1996