Kristopher Rehder Email & Phone Number

Ft. Bragg, Nc

Main point of contact for a majority of USASOC’s vSphere virtual environments; stretching multiple domains, networks, and classifications.• Performed upgrades of vSphere environments from 5.1 to 5.5 and currently 6.0.• Using Powershell, VMware PowerCLI, and IIS created a dashboard over of USASOC’s virtual environment that was scripted to be portable using an XML config file for sensitive/custom information.• Upgrading to 5.5 I implemented a single SSO domain enabling linked mode between vCenters providing a centralized admin view meeting the hard coded maximum # of linked vCenters.• Upgrading to 6.0 the implementation included external PSC using VCSA with Windows vCenter.• Wrote custom scripts for monitoring, reporting, and correcting STIG settings for VMware Virtual Environments to include vCenter, ESXi hosts, and VMs. These STIGs are a traditional a manual check which after having automated was of tremendous value during a CCRI inspection.• Main POC for Storage Fabric switch environment after taking ownership during required corrective actions. Cisco MDS and Nexus 5ks. Maintained Cisco DCNM-SAN for management.• Assisted Storage Administrator with configurations to virtual environment and troubleshooting issues with NetApp and EMC SANs.• Maintained switch port configuration going to ESXi hosts and worked closely with USASOC’s Networking team for troubleshooting issues that bridge Networking / Datacenter responsibilities.• Aided in multiple Proof of Concepts with a variety of vendors and solutions ranging from Converged Storage, Horizon View VDI, Raytheon MLS, to monitoring solutions.

Ft. Bragg, Nc

I was the lead for the team responsible for maintaining and developing FORSCOM’s server infrastructure environment.• Worked in upgrading VMware vSphere environment from 4.1 to 5.5• Automated reports identifying physical location of services between main site and DR site• Lead effort to cleaning and standardize naming convention of the SANs.• Reconfigured the monitoring solution, Nagios, used by FORSCOM by integrating checks based on Server and Application configurations.• Reconfigured IBM Blade Network backend.• Provided technical assistance on domain migration.• Continually wrote SOPs, Howtos, and Processes• Created and maintained the Dashboard overview for FORSCOM’s environment.• Trained team on Powershell, VMware and Cisco IOS.

Ft. Bragg, Nc

I am the Core Services SME for the team responsible for maintaining and developing FORSCOM’s server environment. Technical lead for PowerShell, Group Policy and Active Directory.• Back team lead for the server environment.• Using PowerShell, VBScript, GPO, GPP and Logon scripts I have automated numerous domain wide configuration changes.• Automated maintenance plans to include AD cleanup on multiple domains, and user share management.• Created a robust Report Page generated through PowerShell that provides: + Detailed AD Inventory on User Objects and Computer Objects. + BitLocker Status for applicable computer objects. + Server Inventory Reports (Hardware, Software, Configuration, Updates) + Pending Updates per Server querying the SCCM Agent on each Server. + User friendly “Server to SMC team POC” list. + Summary List of Server Issues with links to detailed information. + How-To section for tasks related to the SMC team. + User Share Usage report correlating folder size, User and User’s Directorate.• Created custom PowerShell Functions to include a way to thread within PowerShell that will allow me to query or push changes to roughly 2000 machines in 15-20mins.• Implemented GPP, Group Policy Preference, to normalize local user and groups.• Worked to normalize server configuration of things such as Antivirus, AD information, Software Installation/Removal through creating reports, How-To’s, and automation when possible.• Worked with IA and the SCCM team to resolve and maintain IAVA compliances.• Provided technical input and solutions for multidepartment projects such as workarounds for issues preventing the removal of local administrative rights on user machines.• Provided assistance in the flipping services between HQ and a Disaster Recovery Site.• Assisted other System Administrators in resolving problems, such as troubleshooting device connectivity, VMware issues, third-party applications and vendor updates.

Ft. Bragg, Nc

I was responsible for maintaining and developing improvements for the network of Pope AAF. This consists of over 200 Cisco devices. Onsite Technical lead for internal Cisco Devices.• Technical lead for the configuration and implementation of the new Cisco 6509E Series routers that now provide Pope AFB with a 10Gig Backbone.• Assisted in the transferences of network responsibilities from AF Active Duty to Reservist.• Created new accurate documentation for network topology layout, and device information.• Reconfigured OSPF for the core routers for standardization and restricting advertisements.• Developed the Cisco configuration standards that were being used by Pope AFB.• Created Scripts to perform configuration sanity checks on backup configurations.• Implemented Syslog and configured network devices to log to server.• Implemented Cacti solution for network bandwidth monitoring.• VTP could not be used, so I trained coworkers to identify/remove excessive VLANs and restrict VLAN trunking.• Troubleshot and resolved pre-existing routing and switching loops.• Built a Sniffer Box for troubleshooting problems using different programs such as Snort, Wireshark, and Ethereal.• Trained Coworkers in simplifying Cisco IOS and CatOS related tasks.

Fayetteville, North Carolina Area

I was responsible for the City’s network environment to include public safety traffic. I also maintained security appliances, servers, and network connectivity to remote sites.• Technical lead in the planning stages for both server and desktop virtualization.• Added additional ESX hosts to both VMware Cluster after vendor completed server virtualization project.• Installed ESXi 4 using iSCSI for temporary server virtualization environment while project in planning phase.• WatchGuard Firewalls to include implementation, troubleshooting, and management• Configured Cisco VPN Concentrator with active directory integration for multiple domains.• Implemented Nagios as city’s current server monitoring notification.• Wrote custom Nagios plug-ins to monitor third party applications to include RMS, McAfee AntiVirus definitions, and Windows Updates.• Setup a syslog server for centralized log management and configured devices for logging.• Managed Barracuda Spam Firewall.• Upgraded Domain Controllers from Windows 2000 to 2003• Created and maintained network documentation in regards to network layout, IP schemas, firewall rules, and device information.• Worked with EMC to troubleshoot, upgrade, and configure NS20 and NS120• Implemented Cacti for network bandwidth monitoring.• Worked with PWC for remote Fiber connectivity & routing between City and County networks.• Moved IP Subnets to their own VLAN for security purposes.• Monitored network traffic for questionable traffic and handled as needed.

Fayetteville, North Carolina Area

I managed the network topology for an award winning web hosting company. Responsible for day to day operations, support and maintenance of employee work stations and internal servers.• Worked within an environment consisting of multiple Cisco routers and 50+ Cisco switches.• Standardized the switch configuration for ease of job and custom scripts for handling large network.• Worked with multi VLANs to include both internal and external IP subnets.• Setup and maintained multi-sensor IDS, intrusion detection system, using Snort.• Setup a visual monitoring system that used SNMP to monitor information such as router bandwidth and server stats.• Setup a Hosted Exchange 2007 Solution using segregated address booking.• Ran Cat5 and Fiber on an as needed basis.• Responded to numerous after hour calls being on call 24/7.• Fine tuned the process of accurately finding abuser across network using packet sniffing, bandwidth monitoring and Cisco IOS.• Experienced working with both VMware ESX 3.5 as well as MS Virtual Server 2005 to include troubleshooting host/guest issues.• Performed baseline install of VMware ESX 3.5 of the IBM 3850. To include Rezoning the Fiber Switch for the SAN.• Maintained and troubleshot Cisco Call Manager 4.0, IPCC Express 3.5 and Unity to ranging from setting up New Users/Phone mail and diagnosing problems to working with IPCC Scripting environment adding new Applications and Call Groups.• Maintained Microsoft Live Communication Server for internal purposes.• Processed internal in/out processing in regards to Active Directory user creation, membership assignment.• Setup Microsoft System Center Essentials and currently in the process of upgrading to Microsoft System Center Operations Manger and Configuration Manager for ease of administration.• Easily floated between team and solo projects with the ability to make executive decision on a case by case basis should the need arise.