Jeffrey B. Leggett
506 Barrington Hills Dr.
Atlanta GA 30350
(h) 770-551-0702
(m) 678-613-5440
email: hikerguy@jeffleggett.com
OBJECTIVE
To obtain employment utilizing my extensive experience in UNIX Systems
Administration, Information Security, and/or Network Design & Architecture.
Hardware
Operating Systems
Networking/Applications
Languages/Programming
SKILLS
Sun Microsystems (extensive), IBM RS/6000/pSeries
(extensive), Silicon Graphics, HP, (extensive Intel / AMD
systems experience), Cisco routers/switches, Nortel VPN
(Contivity),
Nokia
IP
platforms,
Cabletron
Routers/Switches, SCSI, IBM & HP Tape Drives,
AIX, Solaris, Red Hat Linux, IRIX, FreeBSD, IPSO,
Windows
3.x/95/98/Me/NT/2000/XP,
other
UNIX
derivatives over course of career (SCO, Xenix, etc.)
TCP/IP, DNS, SMTP, NIS, NFS, HACMP, ADSM/TSM,
Tivoli Netview, HP Openview, CA Unicenter TNG,
CiscoWorks,
Security
Architecture,
VPN
Design/Implementation, SNMP, Checkpoint Firewall-1,
Apache, mySQL, Sybase, Oracle, Cisco Secure, Cisco
Nat Kit, Samba, Arkeia, LDAP, iplanet/Sun ONE
Application Servers, ISS Realsecure, ISS Scanner, Snort
& other IDS systems), Tripwire, PGP, VPN clients
Perl, PHP, Shell (C, bourne, bash, Korn), C, HTML, Visual
Basic, Powerbuilder
CERTIFICATIONS
CCSA/CCSE – Checkpoint Certified System Admin/Expert (FW-1)
EXPERIENCE
Network Security/UNIX Systems Team Lead
9/1998-2/2002
Contracted to GTE Wireless/Verizon Wireless, Alpharetta GA
 UNIX and network administrator supporting multiple AIX, Sun and Red Hat Linux servers,
maintaining multiple applications. Moved multiple applications from Sun Solaris and IBM AIX
platforms to Red Hat Linux.
 Firewall Administrator utilizing Checkpoint Firewall-1. Also implemented and maintain ISS
Realsecure intrusion detection systems, network architecture and planning, DNS administration
(migrated company from BIND 4.X to BIND 8.X). Perform threat assessments and responses
(CIRT).
 Manage a team of 3 in implementation of listed responsibilities.
 Implement IPSEC compliant VPN solution with Firewall-1 and Nortel VPN Contivity switches
including gateway to gateway VPN's. Tasked with designing and implementing the entire 3rd
party and employee VPN solution for all primary data centers within Verizon. Extensive
experience with Nortel Contivity VPN appliances, firewall configurations and external LDAP
servers (iplanet Messaging Servers). Architected the move to Tier 1 Data Centers for all
mission critical applications.
 Implemented Realsecure IDS with management console for monitoring Internet and vendor
entry points into network. Responsible for audit procedures and documentation for security
audits.
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Built intranet support site utilizing Red Hat Linux, Apache, Samba, and other OSS tools to
document entire WAN infrastructure. Oversaw implementation of Arkeia backup server and
clients.
Provide Network Management support on a variety of platforms to support LAN and WAN
operations for the GTE Wireless network. Responsible for configuration, and implementation of
a variety of network management tools including, but not limited to Tivoli Netview, Tivoli
Storage Mgr (ADSM), Checkpoint Firewall-1, CiscoWorks, NetSys, Distributed Sniffer and
others. Participated in large-scale network changes including configuring routing on Solaris,
Linux, and Cisco systems.
Responsible for AIX (4.x), Solaris (2.5, 2.6, 2.7, 2.8), and Linux (Red Hat 6.0-7.2)
administration of all servers and workstations running network management tools, including Xwindows applications. Utilize Perl and Shell Programming for automation of tasks. Extensive
routing configurations implemented on *IX machines (dynamic (gated, etc) and static with
multiple interfaces)
Sr. AIX Administrator/Perl Programmer
6/1998-9/1998
Contracted to The Home Depot, Atlanta, GA
 Provide AIX and UNIX administration duties, including extensive Perl v5 programming, Intranet
development, multi-terabyte file system design and layout, CPU, memory and disk performance
benchmarking (using IBM Performance Toolkit and standard UNIX tools) in support of ADSM
migration and backups.
 Designed and taught a Perl v5 course for The Home Depot's UNIX System Admin. Dept.
Engineering Liaison
2/1998-6/1998
Internet Security Systems, Atlanta, GA
 Provide customer and internal support for our line of internet security products (Realsecure,
Internet Scanner, System Security Scanner). Act as liason between engineering, quality
assurance, and end-users in configuring and utilizing said products.
 Utilize extensive knowledge of TCP/IP, UNIX Administration, Windows NT Administration,
Networking, and Internet/Intranet technologies.
Project Manager/Network & Systems Consultant
7/1997 to 2/1998
Contracted to MCC/Panasonic, Peachtree City, GA
 Project manager for a variety of projects including, but not limited to, complete network
redesign and migration from a 10 Base 2 shared ethernet environment to a switched ethernet
environment, (Cabletron Smartswitches) with VLAN technology, AIX and Windows NT system
administration, EDI project architecture and management (850,855,860,865,856 trans.
implemented), implementation of an intranet for ISO document tracking and Engineering
Change Orders.
Webmaster/Network Services Manager
10/1995 to 7/1997
Mitsubishi Consumer Electronics America, Inc., Norcross, GA
 Project manager for a variety of projects including, but not limited to, infrastructure for
Mitsubishi's DiamondWeb TV product (Internet TV), systems management (CA-Unicenter,
Netview/6000, CiscoWorks, Spectrum, Paradigm Help Desk, Software Distribution). Also acted
as Technical Lead for the systems management project. Performed cost negotiation for
projects ranging from $25,000 to $750,000 in size and scope. Built the NOC/Data Center for
Supporting all SAP R/3 applications.
 Implemented an intranet for MCEA. Established internal Web servers and framework for users
to publish information b dept. on the internal "DiamondMine" intranet. Used SGI servers,
Apache, SAMBA, Hot Metal Pro, Netscape Gold, and other products for development and user
support. Profiled by SGI for our intranet in an executive brochure.
 Acted as Network Administrator, UNIX System Administrator, Database Administrator,
Technology Evaluator, and Facilitator for the use of the Web and related technologies in
MCEA.
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Responsible for all network operations in the MCEA enterprise, including WAN and LAN.
Performed a network analysis of the entire MCEA network and redesigned portions for better
performance and cost savings. Worked with vendors for networking needs including switching
(Cabletron), routing (Cisco), and Frame Relay and other WAN designs (MCI). Managed
Network Engineers at remote locations in support of WAN/LAN needs.
Responsible for coordinating all departments within the company for focus on establishing
MCEA's World Wide Web presence. Coordinate with vendors for hardware, software, and
services. Act as system administrator for RS/6000 and Silicon Graphics UNIX platforms and
Windows NT platforms for support of Web. initiatives. Use of SGI's WEBForce Authoring
system and HTML coding for both internal and external Web pages.
Evaluate and recommend E-mail systems, search engines, and all other related Web tools and
technologies. Use of ORACLE database systems on the AIX and IRIX platforms with Xwindows.
Setup and maintenance of DNS and SMTP servers, Netscape Navigator support for users,
Netscape Proxy Server, and related tools.
Gained an excellent understanding of the Consumer Electronics Industry.
AIX Systems and Network Administrator
6/1995 to 9/1995
Contracted to Dun & Bradstreet Software, Atlanta GA
 Systems administrator providing support for production and development systems of DBS
customers. Environment consisted of multiple IBM RS/6000’s and X-Window terminals. Hayes
modems and X.25 lines used for customer access, as well as Internet access. Use of SYBASE
and Lotus NOTES. Trained in SYBASE/SQL programming.
 Used perl v5 for systems tasks as well as C and Korn shell scripting. Other standard system
administration tasks performed, such as system monitoring, performance usage, network
support, and user support. Design and implemented SMIT configuration screens.
AIX Systems Administrator
2/1995 to 6/1995
Contracted to IBM Corporation, Atlanta, GA
 Systems administrator providing support for production systems in billing system environment
utilizing IBM RS/6000’s (SP2), AIX, SYBASE, and extensive network utilization. Implemented
HACMP configurations for multiple systems.
 Responsibilities included design and configuration of IBM ADSM (ADSTAR Distributed Storage
Manager) for distributed systems backup of SYBASE databases across multiple machines.
Backup and restore plan implemented, documented and turned over to Operations group.
Operations program to access all B&R functions developed in ‘C’ to allow operations group to
system access without root access. Intensive Performance and Tuning utilizing both standard
UNIX tools (iostat, vmstat, sar) and IBM AIX specific tools (netpmon, tprof, 3dmon, xmperf) for
long term historical data gathering and application volumetrics.
 Use of shell scripts (Korn), C, and perl for day to day support of system users, and daily
reporting and monitoring tools.
 Integration with IBM Netview/6000 v3 implemented.
Client/Server Systems Consultant
7/1993 to 1/1995
Unisys Corporation, Atlanta, GA
 Responsibilities include systems design of systems integration applications and connectivity
designs for customers right sizing to open systems based solutions. Responsible for
connectivity design and integration as part of a select systems integration team for Unisys
customers. As the team’s communication specialist, I was responsible for all connectivity
aspects of projects assigned. Utilized TCP/IP, Novell 3.11, routers, hubs, SNMP, Internet tools
(World Wide Web, archie, gopher, etc.), firewalls, network monitoring and network design and
integration.
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Worked with DCE and Open Environment Corporation Toolsets for design and rapid
prototyping applications. Utilized Visual Basic, Powerbuilder, and related tools in a MSWindows environment for front end screen design. Wrote perl, SQL, and C code under UNIX
systems (SVR4) for connectivity, database (ORACLE and INFORMIX), and functionality
servers.
Primary connectivity utilized was TCP/IP, Novell Netware, and LAN Manager in a LAN
environment, with back-end connectivity to Unisys and IBM mainframes (SNA, Poll Select,
etc.).
Designed and wrote numerous requirements analysis documents and RFP responses for
multiple clients and participated in JAD sessions for requirements gathering.
Worked with Cambridge Technology Group to perform Executive Seminar demonstrations and
present technology solutions that have defined ROI and definable business case solutions.
Received a monetary award for work done for one particular client.
AIX Systems Administrator
1/1993 to 6/1993
Contracted to Barnett Bank of Florida, Jacksonville, FL
 Responsibilities included AIX (v3.2.3 on the RS/6000) project management, UNIX system
consulting (strategic open systems information technology planning), systems administration,
systems performance and tuning, change management, network consulting, support and
programming (C and Perl) for Barnett Bank.
AIX Systems Administrator
10/1991 to 1/1993
Contracted to IBM Corporation, Atlanta, GA
 Responsibilities included AIX project management, systems administration, network consulting
(TCP/IP over token ring including domain name servers, NFS file servers, and AFS client
servers), and programming for IBM Corporation. Implemented HACMP systems. Use of C
and Shell (Korn, awk, perl) languages for programming tasks. Network programming under
TCP/IP on AIX v3 and OS/2 (including SNMP MIB design). Design, implementation, and
support of network management packages using SNMP and X-Window based graphical
monitoring tools (Netview/6000 and XGMON). Use of Network General Distributed Data Sniffer
for network management and monitoring.
Systems Integration Engineer
8/1989 to 10/1991
Dickens Data Systems, Inc. Norcross, GA
 Systems Engineer for a variety of projects utilizing AIX, UNIX, networking, programming and
technical support skills. Performed both pre- and post-sales support for clients.
EDUCATION
Georgia Southern College, Statesboro, GA 1986-1989, Pursued degree in Computer Science
"AIX LAN Communications", IBM Corporation; "AIX SNA Services and Host Connectivity", IBM
Corporation; "AIX Internals", IBM Corporation; "Network Management with the Network Sniffer",
Network General Corporation; "AIX Netview/6000", IBM Corporation; "Programming Microsoft
Visual Basic", Microsoft University; "TEP - Programming the OEC toolset", Open Environment
Corporation; "Introduction to Powerbuilder", Unisys Corporation; "Introduction to Windows NT
Adv. Server", Microsoft Corp.; “Introduction to SQL", Sybase Corp.; "FastTrack to Sybase", Sybase
Corp.; "Unicenter TNG", Computer Associates; "Windows NT Server", ARG; "Checkpoint Firewall1 Course", Verisign’; “Implementing Secure VPN's with IPSEC", Verisign