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	       Ronald DuFresne 148 Lin Tilley Road, Durham, NC  27712 
               tel:  (919) 477-4151 Internet:  dufresne@sysinfo.com
                              Alt E-mail:  ron@sysinfo.com
                                   http://sysinfo.com
     

 

SUMMARY:

An experienced network and systems security administrator with a broad background in distributed systems. UNIX certified (all flavors) and has a good knowledge of TCP/IP, NT, Novell, LAN/WAN, Ethernet, Netbios, routers (Cisco/Wellfleet), switches, and gateways. Expertise with configurations, implementations, troubleshooting, hardware and software upgrades, administration, system support, firewalls, and user training.

TECHNICAL SKILLS:

Hardware:

Cray, RS6000, HP9000, HP3000, Sun, Apollo, Data General, IBM PCs and compatibles, Macintosh, Network cards, modems, hard and floppy drives, SSPS-X mini/mainframe connections, cabling, Internet/Intranet, Ethernet, LAN/WAN, Xylogics term servers, hubs, bridges, routers (Cisco, Wellfleet)

 

Software:

UNIX platforms (AIX/HP-UX/Solaris/IRIX/SCO/Apollo/SGI/Data General/Linux/Unicosmk), NIS, NIS+, Novell Netware, MS Win 3.1/95/Office Suite/DOS 3.1-6.22/NT 4.0/Excel, Foxpro, lotus123, WFW3.11, TCP/IP, IPX/SP, FTP, SQL, telnet, rlogin, Netbios, Linux/fwtk firewall, SMTP, QuickMail, OS/2, LegalEase, sh/bash, perl, Awk and Sed scripts, Paradox, NT Domain, Norton Desktop, Remote Access, HTML, ssh/scp <ver 1 & 2>, TIS firewall tool kit <fwtk>, ipfwamd/ipchains, tcplogger, ipmon, cheops, hping, icmpinfo, TCPwrappers, Ipl, TCPdump, Kerberos, FW-1, SecureID, netcat, nmap, ngrep, pong, freeswan-1.00, mason-0.13.0, tripwire, vpnd-1.0.6, cops Netscape Enterprise Server, apache, SSL/TLS, sslwrap, sslproxy, ssleahy/OPENSSL, etc...

 

EXPERIENCE:

State of North Carolina ITS, Systems Programmer (December 2002 to Date)
· Systems admin on SUN, AIX and Linux systems; systems installs, patching, systems security, user maintenance, web and log analysis admin for iPlanet, apache, and Webtrends. Was key in laying out the design and architectural layout of the enhanced web hosting the state provides agencies under Linux/apache on the s390 IBM platform. Sunpass sa-299 sa-399 and sa-202-S10 course completion. ITIL foundation certification. · Disaster recovery specialist in the unix group. · Vulnerability mediation for unix and various clients. · Though not representing the state, I also presented my papers on wireless security at ToorCon in the fall of 2003.

Independent Contractor August 1985 to 2002

· Recent Projects: Researching of HIPAA regulations and how they apply to systems/network security. Pre-publishing review of a B2B manuscript for Horizon House publications Inc (artechhouse.com). Wrote and published papers on how issues have remained the same since the Morris worm in the later 1980's to the recent code red and nimda virus that struck more recently. The second paper completed is an analysis of placement of IDS systems. Issues covered included looking at not only incoming traffic, but also out-going traffic to watch for signs of compromise and virus/trojan activity; and users not complying with corporate security policies and practices. Both papers are now available online at: http://sysinfo.com/iworms.html and http://sysinfo.com/eds.html. The first paper has been cited in Frederick M Avolio's monthly security newsletter in the February edition at http://www.avolio.com/columns/16-Nothing-has-Changed.html and has been used by Alan Clegg for various other security symposiums including BSDcom2002. Mr. Avolio has cited the second paper in his Netsec monthly at: http://www.avolio.com/columns/18-Network-VATs-for-Verification.html. My paper on wireless security issues, http://sysinfo.com/wire1.html, will be delivered to the Computer Security & Intelligence Conference this August in Calgary, Alberta Ca. We have an additional paper recently published in the TISC Insight newsletter, http://www.tisc2002.com/insight.html, Volume 4 Issue 8, May10 2002, the state of systems security. Setup a firewall/VPN e-mail gateway system with a client in Atlanta on openbsd and Linux, For a client in Norway (bremspor.net) provided network analysis and consulted on upgrade of Linux slackware 8.0 system running ipchains and tcpwrappers. Setup a new server for sysinfo.com on a Sparc10 running openbsd, updated a number of ssl apache web servers as new apache and mod-ssl sources have come out. (May 2001 to December 2002)

· Nortel Networks. Systems Security Auditor/Admin: Defining and implementing systems security on and for internal and exposed Unix systems (SUN/Solaris, HP, AIX). System audits (ISS, sealer, various home grown tools), access rights, networked services, etc. (November 2000 to May 2001)

· AT&T Solutions. Systems Security Analyst: Maintenance of client perimeter devices, screen and choke routers (cisco, various sizes and IOS version), Nortel Contivity switches, FW-1 (on solaris 2.5.1, remotely managed over NT workstations) rules and server stability, etc. (May to November 2000)

· Lockheed Martin/EPA. Systems Installation and Documentation Specialist: Composing configuration documents for various flavors of unix and windows OS’, troubleshooting C2 installation and security issues for on and offsite clients. (three months 2000)

· Lake Region Manufacturing Systems Admin And Security Specialist: SCO 5.0.5 administration on a compaq proliant 8000 box, network administration, security auditing nmap, probe, nexxus), porting and maintenance of a proprietary application to this machine, documentation, staff training. (three months, 1999)

· Webwinks Inc. Instructor: HTML and basic networking instruction. (five months, 1999)

· TekMetrics Inc. Security Analyst: Evaluated and assessed their Systems Security Administrator testing module. (three months, 1999)

· Network Computing Services. Systems Programmer: Worked in a predominantly Cray/UnicosMK environment (Cray2, T3E 900, T3E 1200, Y-MPEL, Y-MP81, J90, etc.). Primary responsibilities included maintaining the IRIX Origin 2000 system running IRIX 6.4 on 12 processors with 8gigs of memory and a few terabytes of disk capacity local, and mounted. FW-1 on NT, swatch, nmap, nessus, tcpdump, etc. (nine months, 1999)

· Cargill. Systems Specialist: Set up an HP9000 HP-UX EDI document exchange system for their clients. Direct Connect (three months, 1998)

· United Health Care. Systems Admin: Upgraded a new AIX server from 4.1.4 to 4.1.5. Moved users and SQL databases to new server. Maintained and managed approximately 10 servers in testing and production. (five months, 1998)

· Platinum Technology. Systems Technical Specialist: Provided QA testing of pre beta corporate Web management software. Researched competitive products requiring extensive traveling and documentation. (five months, 1997)

· K-9 Webs Inc/Pelham Saddlery Instructor: HTML, web administration training. (three months, 1997)

· Goretek Data Systems, Systems Engineer: Provided general systems administration in a DG/UX-Novell TCP/IP environment. Maintained HP, AIX, SCO, and Data General servers, Xylogics termservers, hubs, and bridges. In addition, maintained a Linux/fwtk firewall to the Internet. There were 32 servers for in-house software development. (three months, 1996)

· Alliant Tech Systems. Systems Support Specialist: Provided remote information/communications support for PC, MAC, assorted UNIX platforms (Apollo, Sun, HP, SGI), Novell, WFW3.11, Ethernet, and Tele/data-communications. The existing technology was outdated requiring recommendations for new technology, laying wires, and supporting Internet services, training, and access services. Once again using Remedy. (six months, 1995)

· Honeywell Inc. Systems Support Specialist: Completed SCO, Apollo, SUN UNIX/Netware, dual protocol, PC and Macintosh node and software installations and upgrades in a SCO-Unix/Novell Netware (thin-net) multi-site LAN/WAN setting. Performed hardware and software testing and evaluation, installation, and support. Performed UNIX file restores, special projects, and e-mail. Installed cables, testing, moves, retrieved Paradox data and generated reports. System Administration. Configured Cisco and Wellfleet routers. Overall responsibility included five sites, 1500 local users, three-five international sites including Mexico. Configured, serviced, and shipped systems to Mexico. (six months, 1994)

· Honeywell Inc. Systems Support Specialist: Used Awk and Sed scripts to modify log in files for users. System Administration chores. Tested, evaluated, and installed hardware and software. Completed a UNIX TCP/IP configuration in a 1500+ LAN. (three months, 1994)

· Honeywell HB&C. Systems Support Specialist: Completed a survey and assessment of dataswitch (RS232/PBX) connections to mainframe hosts. This included removing PBX connections and disconnections where feasible and maintaining the databases of users. Configured Cisco and Wellfleet routers. (four months, 1994/sixteen months, 1991)

· 3M. Systems Support Specialist: Setup and maintained workstations and other devices in a TCP/IP environment tunneling Netbios for WINS trusted domains. The environment consisted mostly of NT 3.51, 95, and some 3.x. The printers were HP and Tektronics. Remedy was the service request tracking system that was used, focused on problem users, remote support, and NT and NT bug reports. (ten months, 1997)

· Metropolitan Council. Systems Support Specialist: Upgraded systems from 286/386 to 486/pentium class machines. Migrated users from DOS to Win 3.xx. Provided end user support and training, and trained other consultants on how to implement the project at hand. (three months, 1996)

· Anything PC, Inc. Systems Support Specialist: Performed PC hardware and software troubleshooting and repairs. (3/96 to 2000, various projects)

· Sysinfo.com, Systems Security Specialist: Established an Internet presence, including SMTP, WEB (http/https/html) ssh, and various other TCP/IP services. Established and maintain packet-filters (ipfilter, ipfwadm, ipchains, tcpd), IDS security (tripwire, icmpinfo, tcploggerd, logcheck, imon, tcpdump, ethreal, etc) and proxy services (squid) Solaris, SGI, linux, freeBSD (satan, nessus, nmap, cheops, hping2, etc), windows <various flavors> (1995 to Date)

· Health Partners. Systems Support Specialist: Supported end users in VAX, LAT, TCP/IP, NT DOMAIN, and Novell environments, employing vt420, vt220, vt100, PC and MAC workstations; SMTP and QuickMail; and Microsoft applications. (four months, 1996)

· Minnesota Information Systems. Systems Security Specialist: Established an Internet presence, including SMTP, WEB (http/html), and FTP services via PPP. An intensive study of the innerworkings of TCP/IP, routing, gateways, packet-filters (ipfwadm), security (tcpd, probe, identscan, cops, swatch), and proxy services (squid) . (1991 to 2000, various projects)

· Target Stores. Systems Support Specialist: Provided RS232 remote data-communications and support, dumb terminals, and OS/2 workstation to mainframe connections. (thirteen months, 1995)

· Starnet Communications, Systems Support Specialist: Network monitoring, systems audits (bass, nmap, nessus, identscan, probe, tcpdump, etc), administrative assistance, SUNOS, IRIX, etc.. (1994 - 2000)

· Larson, Allen & Weishair Co. Systems Support Specialist: Converted the system from Wordperfect to Ami Pro/Lotus suite. (one month, 1994)

· Unisys. Systems Support Specialist: Designed Excel spreadsheet, templates, and Microsoft Project files. (3 months, 1993)

· Honeywell Inc. Systems Support Specialist: Maintained PCs, printers, scanners, and inventory. (one month, 1993)

· Dalhberg Inc. Systems Support Specialist: Supported remote PC, modem, (DOS/WFW), HP3000 (MPE G.03.00), Norton Desktop, Microsoft Office Suite, Remote Access (Ocean Isle Software), and Foxpro-based database applications. In addition, provided end user support and training. (four months, 1993)

· Norwest Mortgage Corporation. Systems Support Specialist: Installed software, provided support, and led training sessions. Converted and moved a 200-person department replacing the dumb terminals with 486 PCs on a Novell UTP Network. Provided end user support and training (DOS and Windows). (eight months, 1993)

· Industrial Electric. Systems Support Specialist: Updated databases in Lotus 123 (DOS). (three months, 1992)

· Eckman, Stradness & Eagen P.A. Systems Support Specialist: Transferred case files into relational database software (LegalEase). (five months, 1992)

· PC Circle. Systems Support Specialist: Completed installations, setups, and designs. (3/90 to 2000, various projects)

· Meyer Scherer & Rockcastle. Systems Support Specialist: Worked in data entry including Lotus 123 for Win 3.1. (one month, 1990)

· Minnesota 8 Ball: Systems Support Specialist: Created and maintained Paradox databases and generated reports. (3.5 years, 1991)

· Lawrence S. Doss PhD. Systems Support Specialist: SPSS-X batchfile programming and statistical instrument data codifying via the IBM and VMS environments. (1.5 years, 1987)

· The assignments listed above were contracted through the following companies: TCML, Bos, MA; Apex Systems, RTP, NC; Minnesota Information Systems Mpls, MN; ARC Mpls, MN; I.C.E.S. Ltd. St. Louis Park, MN; Talent Software Services, Inc. Minneapolis, MN; H.L. Yoh Company Bloomington, MN; PC Temps Minneapolis, MN

 

 

EDUCATION:

University of Minnesota 1976-78/1983-85
Minneapolis, MN Completed 250+ credits

 

 

Certifications:

 

ITIL foundation certified 2007

 

 


     
     
     
	       Ronald DuFresne 148 Lin Tilley Road, Durham, NC  27712 
               tel:  (919) 477-4151 Internet:  dufresne@dsysinfo.com
                              Alt E-mail:  ron@sysinfo.com
                                   http://sysinfo.com

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