Greg Guldenschuh

908 Grayson Parkway
Grayson, Georgia 30017-1204
(678) 344-1513 (Home)


To join a forward-looking company in a capacity responsible for networking, telecommunications, or systems related services for Atlanta or the Southeast Region as a whole. In that capacity I can challenge my considerable experience in designing, managing, and operating an Internet attached network and data center to bring the highest possible standard of performance for my areas of responsibility.

Summary of qualifications

BGP4 routing to our ISPs, SAVVIS, Sprint, and Digex advertising our /18 CIDR block to the Internet while at NDC.
OSPF on all inter-router links within the NDC corporate and production networks with > 200 routers in the combined network at the time of my departure in March 2000.
Internet Network News (INN) News server on AIX and Solaris.
SMAIL versions including anti-spamming version on AIX.
Apache Web server to support other web enabled applications on AIX, Solaris, and Linux.
MRTG traffic monitoring package (open source).
Big Brother services monitoring package (open source)

SUN Solaris versions 2.3 - 2.8.
IBM AIX versions 2.1 - 3.25.
AT&T SYS V r3.0 - r4.0.
Linux (Redhat) v5 - 7.1
HP HPUX v 10 - 11
SCO Unix

Korn Shell - various systems, IBM was default shell
Bourne Shell - All of the above.
C shell - Typically on Solaris, but used on all for specialized functions.
BASH - Linux

Work Experience


IDSystems of Grayson, Inc.           November 19, 2001 - Present

Grayson, Georgia

Founded and continue to run IDSystems of Grayson, Inc. The company uses computers combined with digital printing technology to produce photo identification badges for our customers. We sell systems to those customers wanting to produce their own badges and consumables for all types of photo ID systems. I created the current web site, the SQL database and PHP scripts that make the OEM to Sony ribbon database lookup functional. I setup and monitor our domains, Email systems, firewall, and all other TCP/IP related networking.


Interland, Inc           January 16, 2001 - August 7, 2001

Atlanta, Georgia

Joined Interland as Senior Manager for Network Operations with a staff of 6 reporting to me. The Network Operations department consists of 4 of these staff and we are responsible for keeping the Web Hosting production network functioning 7 x 24 x 365. Although not staffed on 3rd shift or the weekend nights, my staff has built an impressive record for network stability and responsiveness to issues. I have 1 staff dealing with the inventory and allocation of our Internet address space. Finally, I have one staff member working on integrating various Network Management tools into a cohesive system to support my other staff functions.

In addition to my managerial duties, I ported and installed MRTG and Big Brother on two different Linux boxes at my location to monitor various aspects of the network. These required installing Apache Web server and the addition of some security to keep out unwanted access. On August 6, 2001 Interland merged with the HostPro division of Micron Electronics. On the morning of August 7, 2001 I was one of 34 people laid off in Atlanta because of the close of the merger the previous day.


S1 Corporation          March 13, 2000 Ė January 15, 2001

Atlanta, Georgia

As Enterprise Network Architect, my responsibilities were to take the legacy networks leftover from the merger of Security First Technologies, FICS Group, Edify, and Vertical One and integrate them into a single, fault tolerant corporate network. Although my title was, by definition, not a management title, I had 1 existing network engineer and an opening for a second mid-level engineer that I directed when they worked on the network. We had a multivendor environment of Cisco routers, Cisco Switches, and Extreme Networks Switches, plus whatever legacy equipment was installed at new acquisitions when they were integrated into the S1 corporate network. My groupís area of responsibility was to service our corporate customers, internally. Reality was that we also had to support customer connections through our Internet link into other areas of the company such as hosting services, development, and our Customer Engagement areas.

By time I left S1 I had removed many of the EIGRP routed links in the corporate network, replacing them with OSPF. I initiated OSPF routing with both our EMEA and APAC theaters, which didnít exist prior to my coming on board at S1. I developed a worldwide IP addressing plan for S1 that was in the process of being rolled out to the other sites. From a network management perspective, I was able to get HP Openview approved for the corporate side of the network. In addition, I installed and used MRTG on a Linux box to provide a historical perspective of the traffic flows across the various WAN links. This involved creative scripting on my part to accommodate the number of routers and interfaces that needed to be monitored. I had a very tight time window in which the polling and computations had to complete, The scripts I wrote allowed all 100+ interfaces to completely poll within the window while still maintaining a reasonable response time on the hosting web server.

During my short time at S1, I managed to discover about a dozen network bottlenecks and inefficiencies and eliminated most of them. New challenges were constantly being brought to light as I peeled back the layers of this onion on my quest to make the corporate network at S1 the best it could be within the constraints of our allocated budget.


National Data Corporation           Sept. 29, 1993 Ė March 10, 2000

Atlanta, Georgia

As the Director of Distributed Systems Networking, I managed a group that was responsible for the entire corporate (includes the production and customer portions as well) computer network from a design, implementation, and support perspective. My responsibilities included:

  • Direct management of the Distributed Systems networking group.
  • Setting policy for the corporate computer network at NDC and all itís subsidiaries, worldwide. These policies include such items as:
  • DNS sub-domain naming conventions
  • DNS server deployment at remote sites and replication
  • WINS domain naming
  • WINS server deployment and replication
  • Category 5 Cabling system deployment and maintenance
  • Fiber Cabling system deployment and maintenance
  • Design and maintenance of a fault-tolerant cabling system using the previous two items.
  • IP address allocation to various sites to maintain unique addresses within the corporate network. Proper use of IP address deployment caused the overall size of the corporate routing tables to shrink due to address aggregation available within OSPF and BGP4.
  • Worked with my immediater supervisor, the Vice-President of Distributed Systems Engineering, in the evaluation and selection of platforms and technologies for our mission critical applications. This included consideration for networking distributed applications such as Oracle Financials, and the HR Information System. Additionally I designed the networking for the Customer Support System using Sybase, the Oracle based Hospital system, and the Oracle based Physician system which comprise the several distributed custom applications written by various NDC subsidiaries.
  • Programming and managing the Internet firewall in the Atlanta office.
  • HP Openview was installed and maintained by me and my group on a Solaris box. This involved some scripting to automate the daily "cleanup" tasks and to create historical archives of various graphs and reports.
  • The AIX system at my location was our primary E-mail gateway to the Internet. I wrote scripts using the Korn shell on the AIX box to intercept incoming E-mail messages to a specific address and to process those messages. This caused an automated update to the alias file so that out remote users on other E-mail systems (such as cc:Mail) were able to update the Internet visible aliases for their offices.
  • From time to time I was called upon to write scripts that "peeked" into the E-mail that was flowing through an AIX system to the Internet. These scripts were searching through all of E-mail for specific keywords and then copying the messages where one was found into a directory where I could take my time to view them.
  • At one time, our AIX system was our primary DNS. I developed scripts which took an E-mail message in a specific format and updated our DNS files to reflect address changes at remote offices where they could not afford their own dedicated DNS system.

During the first half of September 1997, my group successfully brought up nine cities on the wide area network using a combination of point-to-point and Frame Relay circuits. Since May of 1999, my group has moved almost 60 WAN links from a Worldcom Frame Relay network to an AT&T Frame Relay network that provides for separating the customer links from the office connections. All links are running OSPF routing protocol to provide for virtually instantaneous re-routing of traffic in the event of a failure on a communications link. The proper implementation of OSPF coupled with the fault-tolerant installation of WAN connections, where possible, led to NDCís network surviving both the AT&T and Worldcom Frame Relay network outages with a minimum of impact on operations. At the time I left NDC, there were more than 6000 nodes on the NDC corporate computer network. A large portion of my time was spent identifying and resolving issues related to the corporate network at our remote sites. When needed, I would negotiate with the NDC customers wishing to use TCP/IP to transmit their transactions to NDC. Each of these interfaces is a full custom job requiring delicate handling of both the business unit and technical staff at the customer location.


Allied Data Communications        May 1992 - Sept. 28, 1993

Atlanta, Georgia

As a network engineer and project leader, my responsibilities included detailing the customerís current networking infrastructure, documenting the customerís desires for the project, designing the new network, working with our operations and network installation groups to install the new infrastructure and convert the customer over to it. Preparing the final design and installation documents and presentations for delivery to the customer. As a project leader, I had budget responsibility, scheduling of resources, human resources, and customer satisfaction issues to deal with. During many of my projects, I was called upon to write shell scripts on various platforms using different shells to meet specific needs of the particular client. Virtually every project I had responsibility for was executed within budget and on time.


Dickens Data Systems         Apr. 1991 - May 1992

Norcross, Georgia

As Technical Support Representative for the Advanced Dickens Dealer (ADD) program, it was my mission to develop a close personal relationship with the ADDs in the Dickens customer database. During my first six months as the ADD technical representative, the customer satisfaction rating for my position rose from below 1.0 before I was hired to 3.90. I provided technical support for the full range of products offered by Dickens Data System which included UNIX operating systems from IBM, SCO, NCR (AT&T System V R3 & R4), and HP. This support also included writing shell scripts, or debugging scripts supplied by my ADDs, that provided various services for the clients of my customers, the Dickens ADDs.


Americom Distributors          Oct. 1990 - Apr. 1991

Marietta, Georgia

At Americom, I accepted a position of Manager of Technical Support knowing that the business was in financial trouble. Incentives were granted that would have been quite lucrative if we could have saved the company. I managed a department of four technicians whose primary function was to assemble, install and configure Netware Servers, workstations, and stand alone PCs.


Towers High School        June, 1974

Decatur, Georgia

Graduated. During my senior year I was selected as one of three students to take part in a new off-campus study program at Fernbank Science Center. My areas of study included computer programming and analysis of unknown compounds using a Gas/Liquid Chromatograph. Both courses of study were completed successfully and with honors.


Georgia State University           1974 - 1984

Atlanta, Georgia

Attained the rank of Junior while switching majors from Biological Science to Information Systems. During this period I was also employed by the University in their Computer Center where I held several positions over the years. Upon leaving GSUCC, I held the position of System Programmer responsible for the Perkin-Elmer terminal front-end computers.


Community activities

Boy Scouts of America

During my tenure as a registered Scout Leader, since September 1995, I have made it a point to participate in as many training activities as possible. BSA Adult training programs not only help the Scouting Program by making us better leaders, they pay dividends to our employers in the form of more highly trained, and tested, leaders. It is my firm belief that my BSA leadership training gives me an edge over those people who havenít taken these courses and experienced leadership in this manner. As such, I include this training in my resume.

Unit Commissioner

Beginning September 2000, I embarked upon yet another multi-year training program as a Unit Commissioner. As a Commissioner, I am the official representative of the Boy Scouts of America to each of the Troops, Packs, their associated committees, and the Chartered Organization. My job is to be an observer and evaluate each unit on its effectiveness at delivering the program according to BSA policy and guidelines. I am to, diplomatically, communicate with the leaders of my assigned units and make them aware of any signals I observe that indicate a potential problem developing. This allows the unit leaders to take corrective action before the unit itself suffers. Other responsibilities include delivering the yearly charter to each of my assigned organizations and providing general support and representation for my units to the district and council levels. Over the next 4 years I will progress through the "College of Commissioner Science" from my current Basic level to Bachelor, Master, and Doctorate levels.


 Earned the BSA Woodbadge on February 6, 2000.

Woodbadge is advanced leader training for adult leaders. It consists, in the Northeast Georgia Council, of 3 weekends in May of every other year where we learn 11 different skills of leadership. That practical training is followed by creating a "ticket" of 9 to 12 items that are designed to allow you to gain experience in using the skills you just learned. You must complete your "ticket" within 24 months of finishing your practical training. My "Ticket" took 20 months to finish.

Pack/Troop 555; Norcross, Georgia

In 1995, I became the Webelos Den Leader for Pack 555. There were 6 boys in my den that year; 5 attained the Arrow of Light award that year. Of the 5 who received the Arrow of Light, 4 boys earned it in one year. This usually takes a boy 2 years.

In 1996, I moved up with my son to Troop 555 and became an Assistant Scoutmaster for my troop. This required completing a 6-week course in Adult Leader Training and a weekend campout with my training troop. Upon completion of my training, I took over as the Assistant Scoutmaster for the New Scout Patrol.


Parents Without Partners

Gwinnett County Chapter

In 1992, served as vice-president for Parent Activities.



Jeff Ehrlich.
(To protect the privacy of my references, contact info will be provided upon request, Thank You for your understanding)

Jeff Ehrlich has experience with me at both Interland and National Data Corporation (NDC). Jeff brought me into Interland and was Exec. VP of Operations there. During my time at NDC I worked for a VP who reported to Jeff Ehrlich, the CTO. I am including Jeff Ehrlich as a reference because on many issues he was just a comfortable dealing directly with me as he was in going through my boss. He can provide an excellent reference on all my skills.


Bob Lester.
(To protect the privacy of my references, contact info will be provided upon request, Thank You for your understanding)

During my tenure at NDC, Bob was the VP of telecommunications. I worked with either Bob, or some portion of his group on a daily basis. Bob can give an excellent reference as well. His point of reference from not being in the chain of authority that included me will provide a different view for you. Currently, Bob is CIO of Matria Healthcare.


Chris Ivalotis.
(To protect the privacy of my references, contact info will be provided upon request, Thank You for your understanding)

Chris met me in the latter half of my NDC career. He began as a consultant and was eventually hired into a position of VP. He was attached to an acquisition called PHSS and worked closely with me to try and clean up PHSS's network and information flow. The size of the PHSS acquisition and IT infrastructure rivaled that of NDC itself. This presented many unique challenges, which Chris can speak to. He too will be an excellent reference.

Michael Heaphy.
(To protect the privacy of my references, contact info will be provided upon request, Thank You for your understanding)

Mike was the hiring manager who brought me into NDC in 1993. I worked for him during my entire time there. Mike reported to Jeff Ehrlich (above). Mike is an excellent reference for my technical abilities, my managerial abilities, and a general character reference. He can also detail the challenges I overcame in designing the NDC networks (production, administrative, and the customer TCP/IP network) in a standards based, fault tolerant configuration. Mike can provide a reference on how my network design made the separation of the Global Payments business from the NDCHealth business easier to accomplish.

Patents,Publications, and Awards

In a position I held with Scientific Games from 1985 - 1988, I was instrumental in developing technology that produced the worldís first commercially successful bar coded instant lottery ticket. As well as the first commercially viable magnetically encoded lottery tickets.

Elected to Board of Directors of the Local Area Network Dealers Association (LANDA) in 1992 by the full membership.

Elected as Founding Chairman of the Atlanta Chapter of LANDA in 1988 and then re-elected to three additional 1 year terms as Chairman during the next 4 years.