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- System Administrator 2 (National Net, Inc): 2006-2007
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- Part of a small SA team at a big Linux web host
- Data center environment with ~1600 hosts
- Administration of production virtual, dedicated, and co-located customer servers, mostly running Debian GNU/Linux
- Software and Hardware troubleshooting, Live incident response
- Shift lead on weekend nights for ~6 months
- Phone, email, and web customer support, second shift and overnight
- Network Administration (MMI -> Contexo Media): 2004-2006
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- Designed, rebuilt, developed, and supported a mixed Linux/Mac office network for two years
- Designed successor national Windows/Linux/Macintosh network for new ownership
- Production public Web, Mail, DNS services, VPN, and internal File Shares, Databases, Revision Control, Printing, Remote Access, Ticketing, et alia
- Production routers, switches, and firewalls
- Defense in depth, proactive patching, least priviledge
- Office, phone, email, and Jabber user support, usually second shift
- Hands On Training (H and H Computer Education): 2004-2005
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- Taught Intro to PC Tech part time to
diverse
groups at local computer shops
- Helped students prepare for the A+, Net+, MCSA, and
MCSE certification tests.
- Used Linux boot media and open source tools including memtest86 and lspci to teach troubleshooting
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