[资源介绍]
Free Networking tutorials, System Administration Tutorials and Security Tutorials - omnisecu.com
OmniSecu.com is a web site dedicated to networking, system administration and system security. Free online tutorials to master networking, system administration and network security. Free online lessons and guides for IT certifications like MCSE (Microsoft Certified Systems Engineer), CCNA (Cisco Certified Network Associate), RHCE (RedHat Certified Engineer) and Security+
- Omnisecu - 免费网络、系统管理和安全教程。
