Справочник Пользователя для ZyXEL Communications NSA-2401

NSA-2401 User’s Guide

This chapter introduces different ways of protecting data on the NSA and explains how to use 
the Protect screens to create and schedule snapshots and backups.

There are a variety of ways to protect your data on the NSA. Below is a summary table of 
preventative steps you should do in advance to protect against various problems.

Table 67   Protection Methods Overview

Unexpected NSA behavior after 
configuration changes 

Back up the NSA configuration file before you make 
major configuration changes.

(On Your Computer)
Corrupt data files 
Data infected by virus
Data files incorrectly deleted or modified

Use the Genie Backup Manager.
Use anti-virus software on your computer.

(On the NSA)
Corrupt data files 
Data infected by virus
Data files incorrectly deleted or modified

Create regular snapshots (recommended for volumes 
with data that changes often).
Use anti-virus software on your computer to scan files 
from others before saving them on the NSA.
You can also use anti-virus software on your computer 
to scan the NSA for viruses.

(On the NSA)
Hard drive malfunction.

Use RAID.

NSA malfunction 
Network down
Natural disaster such as a fire or earthquake 
occurs where your NSA is located

Back up data to another NSA or computer or an external 
USB hard drive.

Hacking

Place the NSA behind a hardware-based firewall. Ideally 
the firewall should include deep packet inspection, IDP 
(Intrusion Detection and Prevention), and anti-virus (like 
ZyXEL’s ZyWALL USG products for example).
Configure strong user passwords and Access Control 
List (ACL) settings. See 

 for 

details.
Use HTTPS for Web Configurator access to the NSA 
(see 

).

Theft of files by removing the physical hard 
drives.

Store sensitive data in encrypted NSA volumes (see 
page