Joseph Barker ac4whk@r.postjobfree.com

**** ****** ****** 630-***-****

Downers Grove, IL. 60516

Operating Systems:

Windows 10,8.1, 7, XP, Windows Server 2003, 2008, 2012, and 216 Mac OSX, Centos, Fedora, Ubuntu, Kali, Tails, Arch Linux

Software / Applications:

PowerShell, Bash, VMware ESXI, Hyper-V, DNS on Plesk servers Centos, and other CMS applications, Active Directory, Oracle VirtualBoxMicrosoft SQL Server, Microsoft Exchange Server, Google Drive, TeamViewer 12, Citrix ZenCenter, Juniper Firewall, Cisco OSI, Arista Command line interface, WCS (Microsoft Azure), OpenVPN, Office 365

Languages and Scripts:

Html5, CSS, PHP, Python

Networking Equipment:

Cisco, Juniper, Arista

WORK EXPERIENCE

Work History

March 20th 2017 – October 13th 2017 Datacenter System Admistrator

NetSource Communications (Venture Technologies)

Updating and editing DNS records in Centos servers, Plesk Management interfaces, and Other CMS applications

Performed managed services for clients in a datacenter which consisted of Linux and Microsoft servers.

Performed regular administrative tasks on variety of servers and infrastructure to keep networks in optimal running condition. Performed monthly, Quarterly, and annual audits (Exchange, PCI,Security patches, San ect..)

Troubleshooted Mail issues, peripheral devices connectivity to network, FTP, Networking connectivity problems, any other network trouble clients were facing.

Searched on the back end daily for malicious PHP files in linux Mail servers and Web servers

August 15th, 2016 - January 13th, 2017 2nd Shift Line Engineer

Microsoft Cloud Infrastructure and Operations – Atos

Worked in numerous Microsoft Data Centers maintaining and troubleshooting Infrastructure and Azure

For Azure datacenters, primarily worked on troubleshooting why cluster could not communicate with each, Domains, or automation (problems were usually fiber optics, configuration or database issues with automation)

February 2nd, 2016 – July, 2016 NOC Network Technician

New Continuum DataCenter

Ensured infrastructure and network remained functional during night shift

December 14th, 2015 - February 1st 2016 Apple Care iTunes Billing and Support

Xerox

Troubleshooted apps, itunes, and dealt with fraud

November 2nd, 2015-November 4th, 2015 Data Entry

Devry University

Updating several Human Resource systems under contract with Lasalle Network

*extended job history available upon request

EDUCATION

Graduated May 2006 Dominican University, River Forest, IL

Degree obtained: Bachelor's of Science in Psychology

Graduated May 2010 Dominican University, River Forest, IL

Certificate obtained: Post Bachelor Pre-Medical Program

Jan 2006 -May 2015 College of DuPage, Glen Ellyn Continuing

education in IT

Relevant Coursework:

Ethical Hacking Data Communications and Networks

Security Plus (Networks) Advanced System Maintenance

Programming Logic and Technique Calculus

Introduction to Networks Trigonometry

Binary Numbers and Subnetting Finite Mathematics

Introduction to Computers Physics I & II

PC Maintenance and Upgrade Computer Hardware and Maintenance

Certifications

CompTIA A+ Certification 220-801 & 220-***-****

CompTIA A+/Network+ PC Technician Certification College of Dupage 2015

System Support Specialist Certification College of Dupage 2015

CompTIA Network+ N10-006 2016

CompTIA Security+ SY0-401 2017

cPanel & WHM Adminstrator Certification (CWA) 2017

Studying for Linux+ Anticipated completion by LX0-103 & LX0-104 May 2018

Studying for CCNA Anticpated completion by August 2018

Studying for MCSA Anticipated completion by October 2019

Studying for MCSE Anticipated completion by December 2019

Technology I have worked with in career

Azure

Replaced components dealing with Azures infrastructure and for individual sleeves in clusters utilizing WCS tools. Used WCS through serial connection to troubleshoot many problems with clusters and individual sleeves and repaired or replaced necessary components. Used JDSU and Fluke to troubleshoot automation process with serial validations by automated processes between clusters and Cisco routers and Arista switches in MDF. Taking part in the Deployment process with clusters and power validation tests to ensure row of clusters was functional and troubleshoot problems as they arose. Updating driver issues in firmware utilizing WCS tools

System Administrator

Adding and manipulating DNS records including: A, CNAME, SRV, MX, and PTR in a variety of DNS server’s zone files. Updating ARP tables on Primary and Secondary DNS servers. Doing reverse DNS configurations in .rev and named.conf files. Adding or manipulating firewall policies and services in Jupiter Firewalls. Troubleshooted SQL server when a database became corrupt. Updating firmware for SAN servers as part of maintenance schedule. Doing disaster recovery with CDP server using Bare-Metal Restores to perform a recovery of a system after a crash of a production server. Performing PCI scans and implementing PCI audits on a quarterly Bases. Using a McAfee program to generate vulnerability reports, and penetration testing. Performed Exchange server audit quarterly. Set RAID configurations, and performed a RAID audit of the datacenter.. Conducted Audits of CDP backup servers, and checked backups daily. Tracking spammers by analyzing Linux and Windows log files. Performed an audit monthly of SAN servers. Locating, identifying, and removal of malicious PHP files in Linux mail and web servers daily. Performed monthly security patches. Updating BIOS, Firmware, applying hotfix’s and patches to a production environment. Advising clients on best configurations to achieve desired effects when they called in with questions. Troubleshooting installation and configuration for clients as needed. Troubleshooting connectivity issues of various protocols including: FTP, SSH, IPMI, SMTP, POP, IMAP. Rerouting traffic during DDOS attacks, closing ports on servers during botnet and bruteforce attacks. Searching log files for issues related to clients concerns to solve various problems as they arose. Interpreting bi-directional traceroutes from client’s servers to determine and diagnose connectivity issues. Using Wireshark to view information in PDU’s to ensure connectivity to network for remote access. Flushed mail queue when alerts would arise in monitoring systems (SysOrbs). Performing mail, website, DNS, and database migrations. Tracking email problems in SMTP logs.

Networking

Creating a VPN on windows and Linux machines, as well Configured servers to have static IP and Dynamic addresses. Configured servers to use Softether VPN, Open VPN, and vyprVPN. Created self-signed certificates for VPN. Assigned a listening port and VPN for incoming traffic created Authenticated user list. Installed software for Softether VPN on the clients. Helped setup two 48 port layer 2 D-link switches in private network. Setup three Aruba wireless AP's in attic that are also configured for PoE to baby monitors (cameras) in various locations throughout house. Troubleshoot multitude of Arista, Cisco, and Juniper routers and switches within a multinational Corporations production environment. Reset Passwords for multitude of Arista, Cisco, and Juniper routers and switches through IOS command line, and by changing configuration files in GRUB in VI text editor. Re-imaged a multitude of Arista, Cisco, and Juniper routers and switches. Conducted for security purposes a wireless site survey. Troubleshooting connectivity problems with clients with corporation domains. Troubleshooting problems with iLo, DRAC, and IPMI. Setup IPKVM also so that clients could remotely work on servers. Connecting to other servers and enabling clients to connect to servers using SSH with Putty. Troubleshoot Async card in Cisco 2921 switch with ports connectivity problems to various patch panels. Using wireshark to gather and identify data in TCP/IP packets.

Cabling

Running and Troubleshooting connectivity problems Cat5, Cat6, Multi-mode, single-mode, PSM4 fiber cables, AOC fiber cables, Octocables, MTP fiber cables in, Discrete servers to networking equipment, clusters, MDF’s, IDF’s, and MMR’s.. Using JDSU and FLUKE to test connectivity of copper and fiber optic cables when dealing with networking issues.. Rolling fiber cables to ensure correct orientation with light source. In MDF’s worked with Cisco 7000 AGGs to run cables to respective colos. Creating Cat 5 cables when needed.

Hardware

Replacing all hardware components inside servers including TPM chips when motherboards would fail. Working with a multitude of RAID cards and troubleshooting errors generated because faulty cabling and faulty RAID cards. Worked with SANs of a variety of types, and was able to do some troubleshooting for the client during while the server was being remotely imaged. Updating firmware on variety of motherboards and hard drives that were used in Dell clusters. Installing, replacing, troubleshooting multiple types of SPF’s for fiber optics (single-mode and multi-mode). Replacing Cache on a RAID card. Working with VOIP servers, CDP backup servers, PCI servers.

Software

Office Suite, Word, Excel, Access, Office 365 (Helped configure DNS and settings for a client as well as used in in an academic setting), Libre office

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