Pentration Tester / Information Security Researcher
Greater San Diego Area
- Current
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- President, CEO at AtenLabs
- Systems Architect (by contract) at Warner Brothers Records
- Lead Organizer at Barcamp San Diego
- Past
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- Systems Administrator by Contract at digisynd
- Linux Systems Administrator at M5 computer security
- Systems Architect (by contract) at Intuit
- Co-Owner at The Aten Syndicate
- Production Support Engineer at Fair Isaac
- Systems Engineer at Interactivate
- Owner at itkinetix.com (Sole Proprietorship)
- Systems Engineer at Digital Integration Group (Sole Proprietorship)
- Systems Engineer at Anonymizer
- Technical Support Specialist (Tier 2) at Websense INC
- Recommended
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7 people have recommended Dan - Connections
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199
connections
- Industry
- Information Technology and Services
- Websites
Dan Tentler’s Summary
I'm currently freelancing as a network/systems security specialist, and systems architect.
I have over ten years of experience in the field of IT.
My personal accomplishments and resume can be found here:
www.atenlabs.com/resumes
Dan Tentler’s Specialties:
Systems and Network Security, Penetration Testing, Threat Modeling, Risk Analysis, Businesss Continuity Consulting, Systems Architecture and deployment consulting, Windows, Linux, Cisco, Netscreen, Sonicwall, Networking, Firewalls, Security Auditing, Wireless Surveys, PHP, penetration testing, information security, incident response, risk management, vulnerability assessment
Dan Tentler’s Experience
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President, CEO
AtenLabs
(Information Technology and Services industry)
September 2008 — Present (1 year 4 months)
Aten Labs takes care of the Infrastructure and information based architectural needs with a focus on security.
We design and deploy networks, software solutions, security solutions and ultimately deliver peace of mind.
Our slogan is simple: Do it once, Do it right, never worry about it again. -
Systems Architect (by contract)
Warner Brothers Records
(Public Company; Music industry)
June 2008 — Present (1 year 7 months)
Warner Brothers Records has a large infrastructure established to house the websites of their signed artists: Metallica, Madonna, Tom Petty etc.
This is a very high-traffic environment and must be secure, redundant and scalable. My responsibilities here include consulting on network/systems security, apache configurations, deployment strategies, migration plans and strategies and storage solutions. -
Lead Organizer
Barcamp San Diego
(Non-Profit; 1-10 employees; Events Services industry)
April 2007 — Present (2 years 9 months)
Myself and a small group of talented people organized and threw San Diegos first Barcamp. We will continue to throw them every 6 months!
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Systems Administrator by Contract
digisynd
(Privately Held; Marketing and Advertising industry)
August 2009 — September 2009 (2 months)
I did a short contract here to assist DigiSynd with some of their IT and infrastructure backlog, as well as doing some Information Security work.
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Linux Systems Administrator
M5 computer security
(Information Technology and Services industry)
May 2009 — July 2009 (3 months)
My duties were to help provision new machines for hosting, debug issues with linux installations and networking, and plan for future scaling needs
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Systems Architect (by contract)
Intuit
(Public Company; INTU; Computer Software industry)
June 2008 — September 2008 (4 months)
Intuit is working on a product the size of turbotax.com and I was hired to design and deploy the infrastructure behind that product.
F5 load balancers, Cisco switches and routers, storage solutions, redundancy and security were my primary responsibilities. -
Co-Owner
The Aten Syndicate
(Information Technology and Services industry)
October 2006 — September 2008 (2 years )
The Aten Syndicate is a small group of very skilled individuals. Systems, Marketing, Security - we're a companys' company. Other contracting companies will nitpick, kludge work, and find ways to squeeze their customer for every dime. We've been subjected to this enough and we've decided that there needs to be a team with honor that people can contact when they need help. We are that team. Our first foot foward is honesty.
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Production Support Engineer
Fair Isaac
(Public Company; 1001-5000 employees; FIC; Computer Software industry)
April 2007 — April 2008 (1 year 1 month)
Assisting clients such as Capital One, Citi Bank, Discover and others with their decisioning systems. These systems decision loan applications and credit applications at between 100 - 200,000 applications per minute.
I am also the impromptu department sysadmin, having already established a wiki, a basecamp/campfire environment, a document repository and a ruby on rails development environment. These all run on a debian server I built and maintain.
I support my clients running:
AIX 5.2 and 5.3
Solaris 8,9 and 10
IBM MQSeries and MQ(6.0)
Oracle 9.2 and 10.1 -
Systems Engineer
Interactivate
(Privately Held; 51-200 employees; Information Technology and Services industry)
April 2006 — March 2007 (1 year )
Heterogenus environment, FreeBSD, Linux (RedHat), Windows 2000 and XP variants out on the floor. Deployed and supported Apple Xraid fiber channel hardware, t1 and ds3 wan office-to-office connectivity hardware. Deployed and maintained an internal ticketing system (rt3). Migrated from a QMail/imap system to Microsoft Exchange. Migrated systems from one colocation facility to another. Deployed/configured PoE cisco hardware for newly installed voip network.
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Owner
itkinetix.com (Sole Proprietorship)
(Sole Proprietorship; Myself Only; Information Technology and Services industry)
January 2005 — October 2006 (1 year 10 months)
ITKinetix was my consulting business. It was doing just dandy untill myself and a friend joined forces to create The Aten Syndicate. Hes a developer and marketing expert, and I am a Systems Engineer/Architect, so it works out very nicely. We cover the entire board.
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Systems Engineer
Digital Integration Group (Sole Proprietorship)
(Sole Proprietorship; 1-10 employees; Information Technology and Services industry)
September 2005 — March 2006 (7 months)
Four man consulting group. I was the sole systems administrator for seven customers around town in San Diego. Mostly 10-50 person companies that simply needed daily administration on a user level, and sometimes printer issues etc. From time to time a large project would crop up, like a cisco vpn for a large law firm, or defense contractors who required network diagrams and plans to be OK'ed by someone familiar with linux.
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Systems Engineer
Anonymizer
(Privately Held; 11-50 employees; Information Technology and Services industry)
September 2004 — September 2005 (1 year 1 month)
One of three unix systems administrators that adminned 110+ debian linux servers. Mysql, Apache/Apache2, Perl scripting and complete design and implementation of a custom network and proxy environment. The network I designed for Anonymizer was patented, and I am awaiting documentation from the patent office for the official US patent number.
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Technical Support Specialist (Tier 2)
Websense INC
(Public Company; 201-500 employees; wbsn; Information Technology and Services industry)
July 2001 — May 2004 (2 years 11 months)
Technical support for fortune 500 companies. US military installations, nuclear submarines, guantanamo bay, Kmart, center for disease control amongst others. High degree of professionalism and quick response time to unusual websense/system/network problems. Accute sense of urgency when dealing with issues concerning using websense data to terminate an employee (especially at the federal/military level). Quickly became the linux go-to guy, and was the first employee ever to be 'loaned' to the IT department from technical support.
Additional Information
Dan Tentler’s Websites:
Dan Tentler’s Interests:
Systems administration, Systems security, Penetration Testing, Photography, Recreational shooting, Paintball, mountain biking, parkour
Dan Tentler’s Groups:
Thaumatocracy, Aten Syndicate, barcamp, barcampsd, barcampla, defcon, toorcon, 2600, O'Reilly Emerging Technologies, sdhackers, defcon, defcamp
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SoCal Icinga -
DEFCON -
FICO Alumni -
Internet Security Operations Community -
LAgeeks.org
Dan Tentler’s Honors:
I organize the BarCamps in San Diego
I hold one software patent for infrastructure I designed and deployed for anonymizer.com
