Michael McMahon

**** ** **** ******, *******, Florida 33351

Cell: 754-***-**** Email: actygd@r.postjobfree.com

http://www.linkedin.com/in/mmcmahon800

Systems/Network Administrator

Technical Skills/Knowledge:

Operating Systems: Windows 3.1/98/NT/2000/XP Pro/7Pro,Ultimate/8.1/RedHat/Ubuntu

Domain/Application Servers: Windows NT/2000/2003 SBS/2003 R2/2008 R2/2012 Exchange2003/2007/2010/,SQL7/2003/2005/2008R2/2012,MySQL,RIS, IIS6/7, Kiwi Syslog

Virtualization: VMware ESXi/ESX 3.5/4.1/5.0/5.1, VMware VCenter 4/5/5.1, VMotion, High Availability, Host Clustering, VMware Workstation, vCenter Operations Manager 5/5.1, VMware standalone converter, VMware Sphere client, SAN Datastore implementation. Microsoft Hyper-V 2008r2/2012, Microsoft Systems Center Operations Manager, Systems Center Virtual Machine Manager for Hyper-V and VMWare.

Protocols: TCP/IP,DNS,DHCP,FTP,SMTP,SNMP,POP3,IMAP, IPsec, LDAP, VOIP,SIP,SSL, NTP

Networking: Routers/Switches/Hubs, LAN, VLAN, WAN, MPLS, Wired/Wireless, FTP/TFTP servers, DSL/ISDN/Cable/T-1/T-3/Fiber/Metro-Ethernet, Active Directory/Group Policy, Terminal services, Load balancing, DFS Name space, iSCSI, Broadcom Nic Teaming

Applications: Wireshark, Putty, Outlook 2003/2007/2010,Dameware,VNC,Teamviewer,Cisco Network Assistant, Visio, Project, PowerPoint, Microsoft Office Suite 2003/2007/2010, Hyena, Solarwinds Orion, Dumpsec, ManageEngine Suites, Cisco Packet Tracer 5.3.3, PowerShell 4.0, Mantis Bug Tracker

Network Security/Monitoring: PRTG Network Monitor, AD Replication Status Tool, Dell Change Auditor, McAfee MX Logic, McAfee EPO server 4.6, DLP/Anti-Virus, McAfee spam filter for Exchange, Triton Websence, Barracuda Spam/WEB filter Firewall appliances, Barracuda Email cloud security service, Symantec Endpoint Protection 12.1 server/client, WSUS, SSL Certificates

Routing Protocols: RIP,RIPv2,EIGRP,OSPF,BGP

Raid Configuration: 0/1/5/10, Striped/Mirrored

Servers: Dell PowerEdge 2950/R610/R620/R410/R710/R720.

Storage: HP StorageWorks X1600/ StoreEase Storage 1640, Quantum Scalar i40, Dell Equalogic PS6100 SAN

Routers: Cisco1800/1841/2600

Switches: Layer2/3, Cisco WS-C3560x, Dell, D-Link, Netgear, Adtran

Wireless: 802.11AC/B/G/N, Linksys/D-Link/Netgear wireless routers, Cisco Wireless controller

Firewalls: Cisco ASA5515x, Watchguard, Sonicwall, Barracuda, Sophos, Netgear

Disaster Recovery/Backup: CA ARCserve UDP Advanced, Symantec Backup Exec 12.0, Veeam Backup and Replication 8.0, ROBO copy, VSS, DFS, Barracuda Message Archiver, Allsync Pro, Ghost, Paragon, Acronis

Phone systems: Nortel, Shoretel, Avaya, Yealink, Cisco, legacy digital phone systems

Professional Experience:

Computer Aid, Inc. / Royal Caribbean Cruises, LTD Oct. 2015 – Present

Technical Shipboard Lab Analyst

Building and administrating laboratories for testing of all shipboard applications, functions, and systems.

Performing all duties of a shipboard IT manager in the testing environments.

Testing and certification of shipboard applications and guest services in lab environments.

Robert Half Consultant / Driver’s Alert, Deerfield, Florida February 2014 – August 2015

Systems/Network Administrator

When I started at Driver’s Alert I found a network with no licensing, no network management or monitoring, no security, no help desk, no comprehensive backups, and no asset management. There were production servers that scattered between the office and the data center on severely underpowered Dell r320 servers. Virtually no virtual environment organization at all.

Patch management, firmware, IDRAC drivers, and BIOs upgrades for servers were five years behind and were disabled at the local OS level. DNS was full of errors and no attempt to audit it had been done in many years. I audited and fixed all DNS errors.

Many production servers were still running 32bit operating systems. I also discovered a 2007 Exchange server that was not replicating in both directions causing a major problem in the attempt to upgrade to 2010 Exchange servers. Their SQL production servers were also acting as the domain controllers causing serious performance issues with SQL and domain replication.

A complete overhaul of all facets of the network configuration and design had to be performed. In the time that I have been here I have brought Driver’s Alert up to an enterprise level network. When I was done there was a very small foot print with all servers in the data center for optimal performance of all production, development, management, and testing servers.

The first thing I did was to evaluate all the scattered servers and determine which ones were enterprise level servers and could be refurbished to host a large Hyper-V environment. I found three Dell PowerEdge R610 and two Dell PowerEdge R710

I started by building a Microsoft Systems Center Operations Manager server and the Systems Center Virtual Machine Manager on one of the R610s. This enabled me to move virtual machines around while upgrading the other hosts with 96 gigs of dual ranked memory, new hard drives, and raid configuration. Then convert all existing physical production and testing servers in the office to virtual machines and move them to one of the Enterprise Hyper-V hosts in the data center.

I purchased an HP StoreEase 1640 NAS. Then installed twelve 2TB Seagate Constellation hard drives and 32 gigs of memory and configured two raid 5 containers. Then I took two Dell PE2950s and refurbished them by rebuilding operating systems and installing bios, firmware, and driver updates for the hardware. I then built a redundant CA ARCserve UDP backup solution for all physical and virtual systems. This included Bare Metal Recovery built on Microsoft ADK development.

I managed all firewalls, switches, and routers and kept backups of all configurations. I developed a complete asset management system for all devices on the network.

I built, configured, and managed a McAfee EPO (EPolicy Orchestrator) server including the McAfee Security for Microsoft Exchange (MSME) spam filters. This system updated DAT files daily and ran nightly and real time scans for all workstations and servers.

I built, upgraded, and managed the Exchange organization from one 2007 to three 2010 server with a DAG configured with a Kemp load balancer for performance optimization.

I built, configured, and managed a Solarwinds Web Help Desk with DameWare DRS and Mini remote control server.

I managed all AD and Group Policy configurations and changes. I built, configured, and managed a Dell Change audit server and setup reports and alerts for AD and Exchange changes.

I licensed all software including Office 365 and terminal services through Microsoft VLSC with ModComp. I also managed Office 365 and SharePoint services. I installed and configured Azure AD for integration with domain.

I setup and managed PRTG network monitor for drill down server alerts and reports of server performance and configuration.

I built a comprehensive development environment including Team Foundation server, Source control, SQL servers, and Mantis Bug Tracker.

In April we moved the corporate office. I setup a FPL Fiber Metro Ethernet network segment with Host.net. I designed the network infrastructure for cat5 placement, switch room, and demark. I configured and installed two Adtran POE switches for the Shoretel Phone system. And three Dell 2848 Managed L3lte switches for network connectivity.

I setup and configured a Lorex eight camera surveillance system and tested daily.

Kahane and Associates PA, Plantation, Florida Aug. 2013 –Feb. 2014

Systems/Network Administrator

Diagnosed and repaired malfunctioning DNS with hundreds of errors. Configured the DNS forward and reverse lookup entries for 350 computers and servers manually over five VLANSs. Configured dynamic updating of DHCP for DNS entries after DNS was repaired.

Setup and managed McAfee EPO 4.6 server with 350 clients. Configured and managed data loss prevention (DLP) including USB and CD rom access for all systems. Produced daily reports for intrusion threats and system communication with EPO server. Setup and managed McAfee spam protection for Exchange Server 2007. Monitored and tested security cameras and DVRs daily for functionality and resolved issues.

Diagnosed and repaired SYSVOL replication across three DCs by discovering that 2 old Domain controllers were removed from the network improperly, found corrupted GPO SYSVOL system files, and missing GPO permissions.

Diagnosed and reconfigured the Sonicwall Firewall for LAN internet access issues to important client websites and functions. Diagnosed and repaired malfunctioning Barracuda 300 Spam firewall by reinstalling OS, firmware, and settings.

Designed, implemented, and managed custom shared Asset Management excel sheet for use by help desk and infrastructure personnel. Included IP configuration (static/DHCP/number), make, model, and mapped locations of all computers, servers, routers, switches, firewalls, printers, and security cameras. Also user ID, user name, mapped location, department, and phone extensions.

Managed all help desk crew for efficiency and accuracy. Developed new procedures for the insertion of Acronis imaged systems to the company domain for accuracy. Worked extensively with help desk diagnosing and repairing hardware and software issues. Also setup new users, systems, emails boxes, scanner access, phone extensions, access cards, and necessary software for departmental functions.

Retroactively analyzed errors on twenty five 2003r2 and 2008r2 enterprise servers on a daily basis to optimize performance and uptime. Reconfigured DC servers for Global catalogs, raised PDC from 2003 to 2008, and reconfigured DNS entries in the NIC settings for optimal network performance.

Upon arriving at Kahane I found that Group Policy GPOs were not functioning properly. After resolving the SYSVOL replication problem and the DNS errors I audited Active Directory. I found many overlapping and misconfigured GPOs and computers in containers that are not subject to GPOs. I then removed 800 systems that did not exist on the network anymore. I then restructured the OUs to the organizational outline. Then I moved all users and computers into their prospective OU containers and applied new GPOs and logon scripts according the established company policies. Installed ADMX templates and configured Office 2010 specific GPOs and GPPs.

Kahane had thousands of emails daily and there were always issues. I worked with the McAfee MX logic email cloud security service, Barracuda email archiver, and other methods to track and resolve delivery, spam, and virus quarantine issues.

Sheltair Aviation LLC, Fort Lauderdale, Florida Jan. 2012 – Aug. 2013

IT Manager, Systems/Network Administrator

Maintained and managed the LAN networks over a Windstream MPLS WAN and onsite for the corporate office, 18 Remote Fixed Wing Based Operations, and 3 remote Leasing offices. Including all network hardware/infrastructure, security cameras and DVRs for FBOs and hangars, phone systems, applications, 24 hr. customer service systems server access, printers/scanners/fax, self-serve gas pumps, electronic advertising boards, kiosks, pilot lounge and ramp internet access and weather/flight planning work stations, and all configurations.

Designed a new enterprise class company collocated datacenter. Configured, and installed at Host.net physical servers and appliances consisting of four Dell R720/R710s, Dell ISCSI San, HP NAS, Quantum Robotic Tape Library, two Cisco ASA firewalls, two Cisco layer three switches, VCenter tower, ADP hand punch server, and two remote managed power supplies.

Setup VCenter 5.1 tower server for managing the 4 Dell R7xx ESX 5.1 hosts configured for VMWare ESX clustering and high availability, also virtual switching and trunking for multiple networks, subnets, and domains.

Setup and configured all 15 VM virtual guests consisting of Domain, Terminal, Exchange, Data, SQL, and ERP (Yardi, Total FBO) servers. Setup Dell iSCSI SAN for ESX Datastores and DFS replication from an HP Storageworks server.

Managed and maintained all Host.net Data center hardware, network infrastructure, server OSs and services, databases, and software that serviced FBOs from Fort Lauderdale, FL to Plattsburg, NY.

Installed and operated Solarwinds Orion master consoles to monitor the performance and troubleshoot problems of computer systems and networks local and remote.

Managed Exchange 2007 server, databases, and mailboxes for 450 users.

Audited, redesigned structure, and managed Active Directory users, implemented group policies, and log on scripts for an AD forest with two domains and 450 users.

Kept inventory of all systems configuration, installed software, updates and patches.

Performed and monitored regular daily, weekly, annual, and real-time backup software including Symantec Backup Exec 12.0 to tape and Veeam Backup and Replication 8.0 to network storage.

Research new software, hardware, and supplies for cost, implementation, and utilization.

Setup, configured, and monitored quarantine Symantec server system and scheduled server and system scans for virus and intrusion protection.

RealValue Inc., Pompano, Florida Jan.2007 – Dec.2010

Systems/Network Administrator

Designed and managed computer networks and related computing environments including computer hardware, systems, applications software, and all configurations.

Operate master consoles to monitor the performance and troubleshoot problems of computer systems and networks local and remote.

Managed Exchange 2007 server, databases, and mailboxes.

Created Active Directory structure and implemented group policies.

Responsible for maintaining and configuration of all printers, fax machines, and phone systems.

Kept inventory of all systems configuration, installed software, updates and patches with Spiceworks server IT Management system, SMS Server, and WSUS server.

Performed and monitored regular daily, weekly, and real-time backup software and hardware.

Research new software, hardware, and supplies for cost, implementation, and utilization.

Solved hardware, software, and access problems for end users and clients local and remote.

Setup, configured, and monitored Symantec quarantine server system and scheduled server and system scans for virus and intrusion protection.

Implemented ghost server console and recovery system with an Allsync real time back up file server that backed up on and off site to SAN devices.

Myonsitetech.com, LLC, Pompano Beach, Florida March 2002 – Nov.2006

Regional Manager, IT/HR Department

Maintain and managed computer networks and related computing environments including computer hardware, systems, applications software, and all configurations by remote control.

Operate master consoles to monitor the performance and troubleshoot problems of computer systems and networks, and coordinate computer network access and use.

Hired 200 verified certified field technicians over the phone through internet recruiting system that I helped develop.

Solved hardware, software, and access problems for end users, technicians, and clients local and remote.

Acted as a field technician performing on site installations of systems and complete LAN networks. Also conducting repairs of software and hardware issues.

Also designed, developed, and wrote website content and functionality.

MJM Networks, Sunrise, Florida 1998 – 2002

Systems/Network Administrator

Designed and managed computer networks and related computing environments including computer hardware, systems software, applications software, and all configurations.

Operate master consoles to monitor the performance and trouble shoot problems of computer systems and networks, and coordinate computer network access and use.

Installed and configured hosted and hardware VPNs for client file access and database synchronization over WAN for database driven software applications.

Onsite Rescue Computer Service, Pompano Beach, Florida 1994 – 1998

Systems / Network Technician

Maintained computer networks and related computing environments including network hardware, systems, applications software, and all configurations.

Operate master consoles to monitor the performance of computer systems and networks, and to coordinate computer network access and use.

Acted as a field technician performing onsite installations of systems and complete LAN networks. And performing repairs of software, hardware, printing, and networking issues.

Education:

Sheridan Technical College, Hollywood, FL, Cisco Network Support Services(Graduated(A) Feb. 2012)

Cisco Networking Academy, CCNA Discovery Training(Graduated(A) Feb. 2012)

Nova High School, Davie FL

Certifications:

MCSE, MCP, MCSA, MCDBA, Microsoft TechNet Professional Member

CCENT, CCNA, Cisco Certified Network Associate

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