# Category:Security (简体中文)

GNU/Linux通过用户和用户组进行访问控制。超级用户(root)对操作系统和系统配置享有完全的控制权，我们只应当在管理系统时使用它。无特权的普通用户可以使用su和sudo程序提升权限。

安全这个主题包含了广泛的内容。

## 相关类别

- Category:Internet Applications (简体中文)
- Category:Networking (简体中文)

## Subcategories

This category has the following 3 subcategories, out of 3 total.

### F

- Firewalls (简体中文)

### P

- Proxy servers (简体中文)

### S

- Secure Shell (简体中文)

## Pages in category "Security (简体中文)"

The following 11 pages are in this category, out of 11 total.

### A Allow Users to Shutdown (简体中文) ### C Change username (简体中文) ClamAV (简体中文) ### D Dm-crypt (简体中文) | ### M MAC Address Spoofing (简体中文) ### P Password Recovery (简体中文) ### S Squid (简体中文) SSH Keys (简体中文) | ### S cont. Sudo (简体中文) ### U Users and Groups (简体中文) ### V Virtual Network Computing (简体中文)

Category:

- System administration (简体中文)