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CESNET network node

1997–2000

Building and operating a CESNET network node

At Unreal Technology s.r.o. we built and operated a dial-up node. Initially, a Cisco 2511 router and 16 US Robotics Courier modems handled client connections; later we moved to a Cisco 2600-series router with digital modems terminating an ISDN PRI line.

Administering routers, switches, and later PIX and ASA firewalls, IPS, and related technologies led me to earn the following Cisco certifications:

• CCDP,
• CCNP,
• CCSP.