Have run and maintained large (200,000+ customers) networks for a large national ISP.
Have implemented IPSEC-based VPN with road warrior support for large regional companies over non-homogenous (ATM, frame, T1) networks.
Have deployed a multi-city trial of Cisco IP Telephony.
Have implemented 802.11 + IPSec hotspots for wireless access into a larger VPN network.
Have extensive experience in handling ISP-type support infrastructure: DNS, RADIUS, TACACS, LDAP, news, mail, web services.
Have written numerous scripts/applets in Python/Perl for updating webpages, querying network devices, updating configurations, authentication, etc..
Have remotely-administered several Debian linux machines for 8 years.
Have investigated fraud/misuse of resources for another large national ISP.
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