Operating Systems - System Administration

• Microsoft Windows Server - NT 4.0-Server 2022
• Linux - RedHat/Fedora/CentOS and Debian/Ubuntu primarily, but comfortable with most distributions.
• Microsoft Windows (Client) - Windows 3.0-Windows 11
• Linux (Client) - RedHat/Fedora/Mandrake/Ubuntu/Debian/Slackware
• MS-DOS 3.21-6.22
• Limited Novell Netware
• Limited Cisco IOS

Notable Server/Service Configuration

• Asterisk telephony server - Configuration and maintenance of Zaptel/DAHDI (POTS), SIP, IAX2, and integration with disparate systems across continental U.S. - conference room, adaptive echo removal/jitterbuffer, multiple AMI integrations.
• Samba filesharing server - Complete Active Directory replacement and domain member server configuration. Integration with Active Directory across many physical sites and configurations.
• Nagios - Configuration and maintenance of a monitoring suite encompassing multiple physical sites and disparate systems integrations. Escalations to ticketing systems (email) and phone calls through Asterisk.
• Request Tracker - Perl-based trouble ticket system. Programmed custom integrations with phone, email, mutiple queues, automatic escalations, and approval queues.
• Samba - Dozens of configurations, member servers, domain controllers, full Active Directory emulation (without Windows servers), Active Directory Member Servers, user and group restrictions, and access control lists.
• Postfix - single and multi-domain configuration, multiple mail filters handling everything from anti-spam measures, access control, and email archiving.
• Courier-IMAP/Dovecot - Serving multiple domains, automatic cleaning of individual accounts (via cron).
• Dokuwiki - Integration with Active Directory (emulated and real) for access control.
• Subversion - Management of dozens of repositories with hundreds of branches/releases. Integration with Active Directory for access control. Integration with Apache (through mod_dav_svn). ViewVC for ease of code review.
• Apache - Configurations to enable mod_perl, mod_php, mod_python, wsgi, mod_dav_svn, multiple virtual hosts.
• XMPP Servers - Openfire/jabberd/ejabberd - Configuration to enable federation between domains, Active Directory authentication, and clustered operation.
• MySQL/PostgreSQL - Data modifications to support major upgrades, porting between systems, data conversion and restoration.
• Apt-Cacher/WSUS/WPKG - Automated software deployment.
• IPTables - Design and maintenance of firewall policies for exterior and interior uses.
• OpenSwan/StrongSwan - IPSec VPN design and maintenance for use with road warriors and branch offices.
• Continuous security research, changes, and improvements to all services.

Programming Languages and Environments

• C
• 6502 Assembly
• PHP
• Perl
• C#
• Unity
• Python
• Javascript/HTML/CSS
• Bash
• Wordpress
• Django
• Pyprocgame
• Skeletongame

Programming Tasks

• Web Service Integrations - SOAP, JSON - To enable close integration between multiple companies and products. Command line interface to allow easy troubleshooting, integrated testing and archiving.
• Shell Scripting - Glue scripts to enable integrations between various programs and products.
• Designing and maintaining multiple websites.
• Designing and maintaining backup systems (local, networked, NAS, and Online).

Business Analysis

• Analysis of all aspects of multiple businesses to determine custom programming required to wring as much efficiency as possible. Management of a team of programmers to implement, resulting in continuous double-digit growth year-over-year.

Networking

• IPV4 and IPV6
• Full network design and implementation across multiple locations, virtual environments, and mixture of managed and unmanaged switches, and PoE supporting dozens of devices.
• DNS (Bind and Windows)
• DHCP
• Configuration servers
• Proxy servers

Hardware

• Custom client and server hardware configuration and builds for multiple companies.
• Single and multi-processor.
• RAID configuration.

Logistics/Compliance

• Coordinated two office moves and multiple remodels requiring buildout, inspection, and monitoring of all aspects of the move.
• License and bond compliance for a large number of employees in 8 states.