who am i

Jason Ellison

Infotek

I am an independent Information Technology consultant who has been in the field for over 20 years. In that time I have experience in demanding 24/7 manufacturing environments, critical infrastructure environments, and small office settings.  Exposure in this diverse set of environments has made me a well rounded I.T. professional.

  • Name Jason Ellison
  • Available Yes
  • Location Fairhope, AL

professional skills

  • Network Design

  • Network Analysis

  • Network Administration

  • System Administration

network
  • Linux

  • Cisco

  • Unix

  • Windows

Systems

experience

CTO - JMF Solutions

Feb 2014 - Dec 2015

Utilize automated tools such as Puppet, Ansible, and Expect to manage and maintain a large VoIP install base. Manage and maintain a large email infrastructure. Manage and maintain cPanel and Plesk hosting environments. Industrial wireless and Ethernet design and debug for Kuka, Boeing, General Motors, etc. Focus on SIEMENS gear and Profinet, ISO/TCP. Maintaining low latency and safe transport for industrial PLC protocols and safety traffic.

Network/Systems Analyst – Rochen

Apr 2012 - Feb 2014

Work with a virtual team (they are humans) to maintain a large number of Linux hosting servers which are also geographically distributed. Maintain Cisco based network and Cisco Unity Express phone system. Manage VPN devices to enable secure connections for both phones and users. Implement and maintain high performance loadbalancer setup. Focus on networking, security, virtual environments and automated Linux administration. A fun ``all hands on deck`` environment.

Network/System Administrator – Riviera Utilities

Oct 2009 - Feb 2012

Linux Administration (Proxy, Fileserver, Nagios Monitoring, Task Automation) Windows Administration (Desktop and Server) Network Design and Administration (Switches, Routers, Firewalls and Wireless) DOCSIS/CMTS on HFC cable network SCADA support. Maintain and support : 10 Windows Servers,8 Linux, FreeBSD, OpenBSD servers. 140+ Desktops/Laptops

Consultant Embedded Linux OS – JMF Solutions

Feb 2008 - Jul 2009

Embedded Linux Engineer working with Ubiquity Networks on AirOS (an embedded Linux wireless platform)

Network System Engineer – Business Information Systems, Inc

Feb 2008 - Sep 2008

Wireless & Wired Network Engineer. Windows/Linux System Administration. Lefthand iSANS administrator, Microsoft Virtual Server administrator, Cisco Switch/Router/PIX/ASA, HP switches and routers, Juniper Netscreen, Sonicwall. Focused on larger clients in the Medical Field.

Network System Engineer – JMF Solutions

Feb 2006 - Feb 2008

Design wireless networks using 802.11a/b/g COTS radio equipment. Networks are installed on cellular towers with 5mi range. Wireless routers are Linux based routers running IkarusOS by antcor. Worked with antcor to fix software issues found while testing their product IkarusOS. Designed and Implemented an Open Source Studio to Transmitter Link (STL). Created with (mostly) Open Source Software and in use by a local FM and two local AM radio stations. The results were published in BDS Magazine's 2009-02 edition.

Consultant – Business Information Systems, Inc

Feb 2004 - Feb 2008

Consultant on jobs Cisco, Unix and security related. Design and configure medium sized networks using Cisco and Linux as components. Design and configure IPSec Networks using Cisco routers, Cisco Pix firewalls, Sonicwall, and FreeSWAN(Linux). Design and configure highly redundant layer two and layer three networks for use with SANs solutions. Created Linux based samba servers to replace Windows/Novell servers. Utilized Hylafax and Linux to automate a bill processing business, cutting labor requirements in half.

Network Analyst – Delphi

2001 - 2005

Network and Systems Analyst. Install, configure, maintain and monitor a Cisco based network, including cisco catalyst switches, cisco routers and VPN concentrators. Write custom scripts in expect/bash/perl to manage Cisco device change control. Configure and support multiple AIX 4.x RS/6000 servers. Automated Unix remote backup procedures by implementing software controlled robotic tape libraries. Configure, maintain dhcp, bind, apache, mysql, sendmail servers on AIX and Linux. Install, configure and maintain Citrix Metaframe server. Install and maintain multiple Windows NT 4.0 through Windows 2000 file Servers. Install, configure and maintain Novell 4.11 servers. Deploy and support of 100+ win2000 workstations. Configure and monitor Oracle 8.x servers. Used Netsaint, MRTG, HelpmeICT and several custom programs to automate system and network maintenance. Wrote several custom utilities in bash, C, expect, perl, php and python. Unix, Windows and Cisco security.

testimonials

latest news

network address space


Network address space is sometimes anounced by people who do not own that space. The insecure nature of the BGP routing protocol allows for this. IANA has a list of the ipv4 network allocation and to whom it belongs http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xhtml Here is an oldie but a goody… Stealing The Internet – A Routed, Wide-area, Man […]

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nfl database


I made a website for a friend to automate his weekly nfl calculations. These numbers do not mean very much to me… However, he says it saves him several hours a week. https://nfl.jasonellison.net/

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Monitoring database performance with PRTG


PRTG is a fairly robust monitoring platform with good API support. It is lacking for out of the box performance monitoring of you databases. Sure it can tell you how long it took to respond to a simple SQL query, but to actually collect performance metrics… you have to do some leg work and create […]

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