Today, www.Firewall.cx is amongst the most popular and
respected network portals in the world, covering Cisco networking, security VPN, routing,
switching, voice and VoIP Call Manager - CallManager Express technologies. Firewall.cx analyzes
over 900 topics, with over 37,500 answered forum questions and offers free Cisco training via its
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Chris has a degree in electrical technology and holds the following certifications: CNA for
Netware 3, 4 and 5; Cisco's CCNA; Microsoft's MCP; DCE (D-link); LCP (Linux Certified
Professional); Network+; A+; Symantec STS; SSE; SSE+, VSP 5 (VMware) and Hellas-Sat Certified