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Virus scanner
If you want to scan your files or a Windows computer you can use F-Prot virus scanner. You can download the program from the Forum. After you have downloaded and installed the program open a shell and enter the following command while you are still online.
/usr/local/bin/xfprot-gtk
or
/usr/local/xfprot/xfprot-gtk
Now you can update the virus definitions.

Firewall and daemons
You should always have an active firewall. It allows you to controlwhat ports your PC uses to communicate with the Internet. Ideally, allports are closed.
Start "Menu | Setup | Linux-Firewall Wizard".

Go to the "default" entry using the Arrow Down key (this option closes all ports) and press Return.

Now you can check the firewall rules.

Root

In contrast to most other Linux distributions Puppy does not differentiate between a normal user and the administrator root. Rather you always works as root, which simplifies the use of Puppy. The question arises if it is unsecure to work as root and to have full access to all files, programs and data.

For the normal home user, there are no special risks compared to other Linux distributions. On the contrary, Puppy is probably a bit safer than many other distributions.

First let's analyze the risk of a distribution, which differentiates between user and root.

Live-CD

If you start Puppy from CD-ROM (or from a CD-image on your harddrive) no potentially harmful programs can install on your computer. With every reboot all potential malware is gone.

However you are not wholly protected against malware while you are online, because (in theory) malware can be installed on your computer and can be active until the next reboot. That is why you should always run a firewall. Besides you can store checksums of all your files to make sure, no one has manipulated your files.

Security

Multiuser
请查看puppy3.01使用手册中的多用户

Puppy is not developed as a multi-user distribution. In contrast to other distributions each user has full access to all files, programs and personal data. Nevertheless there are some options for multiusers.

How to make a backup

请查看puppy3.01使用手册中的 如何做备份

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a starter at filling in the stub

First, what do we wish to back up and what can be safely ignored?


In most cases, one would want to back up user files. These are likely to be in /root or /root/spot. In my case, on my USB sticks, I also have files in /mnt/home (so they are also accessable by computers that I plug the USB stick into outside of Puppy).

The remainder of the file system holds the Puppy distribution (e.g. in /bin, /usr/bin, ...).

How to setup Puppy
请查看puppy3.01使用手册中的如何设置Puppy

请查看：Puppy 3.01的使用手册中的如何安装卸载程序
如何安装卸载程序
安装程序有几种不同的方式，详述如下。在安装前建议备份pup_save.2fs。当你安装中出现错误时就可用备份恢复原样。

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How to install/uninstall programs

There are different ways of installing programs which are described below. Before an installation it is advisable to backup the pup_save.2fs-file.

Keyboard layout

If you are using Xvesa as your video server and you do not have a US keyboard, you need to customise the keyboard layout.