QNAP Disk On-line Server NAS-2100 Manual de usuario descargar pdf (Pagina 14)

Deploy Rsync over a VPN

While transferring data across networks is a business necessity, so also is ensuring the

information doesn’t fall into the wrong hands. For example, a malicious user can sniff data in

transit and steal confidential information, or he can perform a man-in-the-middle attack and

modify critical information during transit. Although Rsync doesn’t provide any native facility to

encrypt data, it can be used effectively over a VPN connection.

In brief, a VPN allows you to create a secure tunnel (between two endpoints) over a public

network, such as the Internet. There are three common types of VPNs, listed here from least to

most secure:

9 Point-to-Point Tunneling Protocol (PPTP)

9 Layer 2 Tunneling Protocol (L2TP)

9 IP Security (IPSec).

Each type of VPN offers its own authentication and encryption algorithms, and a complete

discussion of each is beyond the scope of this guide. Our discussion focuses primarily on

creating the necessary gateway and network policies to support a VPN. And finally, because the

configuration details can vary significantly between router manufacturers, we’ll provide only a

general outline of the procedures. Let’s start by examining the scenario shown in Figure K.

Figure K: Using a VPN, you can ensure that your Rsync backup jobs are secure.

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QNAP Disk On-line Server NAS-2100 Manual de usuario Pagina 14