Summary
Overview
Work History
Education
Skills
References
Timeline
Generic

JOHN AYENA

BLUFFDALE,UT

Summary

Driven Multi-platform Systems Administrator with over 4 years of experience in a Unix, Linux and Windows environment with hands-on experience in the administration and management of Solaris 10 operating systems and RHEL 6.4, 7, & 8, Centos 6.4 & 7, Windows 7, 8, 10 & 2019 and Cloud Computing (AWS). Adaptable, collaborative, strong team player, detail-oriented ability to multitasking. Excellent verbal and written communication skills; ability to work within strict deadlines and with a wide spectrum of people; Project Leader experience Solid background in systems and software installation, user and group administration, role base access control, file transfer and sharing; competent in file systems, volume and storage management, patch management amongst others.

Overview

9
9
years of professional experience

Work History

Multi-platform Systems Administrator

Trinitech Consulting Global Inc
11.2019 - Current
  • Perform multi-platform Servers built on VMware, which includes Windows Servers 2008, NOS 7, 8, 10 & 19, UNIX Solaris 10, LINUX Centos 6.4 & 7 and RHEL 6.4, 7 & 8ininfrastructure
  • Experience in building and configuring VMware host and Guest Systems on Oracle Virtual Box as well as bridging the Guest VMware systems to communicate with other physical LAN systems
  • Responsible for assigning hostnames, static IP addresses, default gateway addresses and DNS addresses to Windows, UNIX and LINUX systems so as to introduce them to the network
  • Configure DNS, Active Directory as well as to promote standard Windows 2008 Servers to Domain Controllers
  • Setup Group Policy Management in Windows
  • Windows 7, 8, 10 NOS imaging, configurations and software deployment
  • Troubleshoot and resolve OS, application, malware desktop related issues on various Windows NOS
  • Use TCP/IP troubleshooting tools to troubleshoot and resolve network connectivity and DNS related issues in the LAN
  • Configure Windows NOS clients to join the Domain as well as configure file and print sharing on some Windows NOS to enable resource sharing
  • Performs administration activities such as setting user accounts, roles, access, and privileges
  • Setup, configure and troubleshoot TCP/IP, DHCP, and DNS, LAN /WAN, NFS and samba servers in multiplatform LAN
  • Installing and maintaining the operating system and related software products
  • Installed and configured databases on Unix/Linux platforms
  • Investigating, resolving and closing user reported PC problems and application issues through our ticketing system
  • Perform multi platform volume management using LVM, SVM, ZFS volume manager, and VERITAS volume manager; installed and configure a LAN wide NAS (Free NAS) used for creating LUNs and attaching to windows 2008 servers and to Solaris 10 servers using iSCSi
  • Swap management in UNIX and LINUX
  • System Hardening, Patching, and Upgrades (releases), on standalone servers (using single user mode), and on production servers (live upgrade)
  • Bash shell scripting to schedule and automate processes in UNIX/LINUX including full and incremental backups using tar, cpio and rsync
  • Responsible for data management using native UNIX and LINUX utilities for archiving, compression, backup and restore
  • Involved in setting up a hybrid cloud environment and expanding the local LAN to the AWS cloud
  • Responsible for spinning up AWS RHEL8 and Windows Server 2019 EC2 instances
  • Install and configure samba file server on the RHEL8 AWS EC2 instances, as well as configuring File and print sharing on the Windows server 2019 EC2 instances
  • Map network drives from local Windows 10 NOS systems to the RHEL8 EC2 Samba shares as well as the Windows Server 2019 EC2 shares
  • Create and configure S3 buckets for data storage
  • Build and host static websites in S3 buckets
  • Create and attach EBS volumes to EC2 instances
  • Configure EBS volumes on EC2 instances to create LVM volumes on RHEL8 EC2 instances
  • Install and Configure Ansible Servers on RHEL7/CENTOS7 for automation and configuration management as part of Trinitech DevOPS implementation
  • Add Ansible client systems to various inventory groups in the ansible hosts files as well as push the public ssh key from the ansible host to the ansible client systems
  • Configure modules and playbooks to push out sets of configurations and tasks to numerous Local and EC2 Cloud systems from the ansible server
  • For example build modules to create User Accounts and install and configure Apache HTTP, as well as write playbooks to deploy packages, including Apache Tomcat to numerous local LAN and AWS EC2 systems
  • Install and configure a Splunk Indexer Server on RHEL8 AWS EC2 instance for centralized log management, as part of Trinitech DevOPS implementation
  • Configure splunk forwarder systems to push out logs to the splunk indexer server
  • Install and configure Docker in Centos 7 & RHEL 7 & 8
  • Install and configure containers in Docker
  • Migrate a Docker container from the local Docker server to the AWS RHEL 8 Docker server in the cloud.
  • Involved in setting up a hybrid cloud environment and expanding the local LAN into the AWS cloud. Responsible for spinning up AWS RHEL8 and Windows Server 2019 EC2 instances.
  • Install and configure samba file servers on RHEL8 AWS EC2 instances, as well as configuring File and print sharing on the Windows server 2019 EC2 instances. Map network drives from local Windows 10 NOS systems to the RHEL8 EC2 Samba server shares as well as the Windows Server 2019 EC2 shares.
  • Create IAM users, groups, policies and configure Multi-Factor Authentication required for cloud system authentication and authorization. Use JSON scripts to create custom IAM policies to be used for user and group authorization.
  • Create and configure S3 buckets for data storage. Build and host static websites in S3 buckets. Create and attach EBS volumes to EC2 instances. Configure EBS volumes on EC2 instances to create LVM volumes on RHEL8 EC2 instances.
  • Design, build and support VPC infrastructures for public and private subnet deployments, while setting up Internet, and NAT Gateways,Routes, Security groups and Bastian hosts required for connecting to EC2 instances in the VPC private networks via Putty.Configure and deploy launch templates to autoscale EC2 instances to meet increasing network load requirement, as well as set up load balancers to increase high availability for Apache web servers, as well as to distribute incoming application traffic across multiple target APache web servers.
  • Deploy LAMP stack on RHEL8 EC2 Instances for Worpress setup. Install and Configure Wordpress on LAMP servers for website deployment
  • Install and Configure Ansible Servers on RHEL7/CENTOS7 for automation and configuration management as part of Trinitech DevOPS implementation. Add Ansible client systems to various inventory groups in the ansible hosts files as well as push the public ssh key from the ansible host to the ansible client systems. Configure modules and playbooks to push out sets of configurations and tasks to numerous Local and EC2 Cloud systems from the ansible server.
  • Involved in building modules to create User Accounts and install and configure Apache HTTP, as well as write playbooks to deploy packages, including Apache Tomcat to numerous local LAN and AWS EC2 systems. Install and configure a Splunk Indexer Server on RHEL8 AWS EC2 instance for centralized log management, as part of Trinitech DevOPS implementation.
  • Configure splunk forwarder systems to push out logs to the splunk indexer server. Install and configure a Docker server on a RHEL7 server for containerization management, as part of a Trinitech DevOPS implementation. Build and configure docker containers to deploy Apache http, Nginx, as well CentOS platforms. Involved in migrating Docker containers from old to new platforms.
  • Install and configure Kali Linux systems for penetration testing projects. Use Nmap, Angry IP, FPING for network, port, and service scans. Use of metasploit exploits to penetrate and evaluate network infrastructure security posture while designing and implementing network and system hardening strategies, which include patch management, user access management, password and group policies, role based access, vulnerability management to help enhance security.

Sales/ Merchandiser

Peak Distribution Company
06.2015 - 06.2018

Education

Bachelor of Science in Information System and Software Engineering -

Utah Valley University
Orem, UT
01.2021

Bachelor of Business Administration in Human Resource Management -

Valley View University
Ghana
01.2010

Skills

  • Server and System Administration Solaris 10/11; Red Hat Enterprise Linux 7 - 9; Centos 7
  • User Account and Unix/Linux Security Management; AAA, RBAC, Sudo and Hardening
  • Disk Management and Filesystems; SVM, LVM, EBS volume, UFS, ZFS, EXT4, XFS, Rootfs, Swapfs, tmpfs, NFS CIFS, LDAP, IPA, VERITAS, NAS
  • Patch and Package management
  • Linux Process Management;
  • Data Management and Backups using tar,
  • CPIO & Rsync
  • Bash Shell Script
  • Solaris Containerization
  • SCP, SFTP, TCP, IP Addressing, DHCP, UDP, FTP, WINSCP, SSH & Putty
  • Workstation player; 1251 – 17, VMware ESXI 65 – 7 and Oracle Virtual Box
  • AWS; EC2 Instance, Samba, Auto-scaling, Launch Template, Auto-scale groups, VPC configuration, static website using S3 Bucket, IAM service, EBS volumes etc
  • DevOPS; Git & GitHub, Gradle, Jenkins,
  • Ansible, Dockers, Splunk and Terraform
  • Cybersecurity (Pentesting using Kali-Linux)
  • Problem-Solving

References

Emmanuel Warah, emmanuel1@trinitechconsulting.com, (301)686-8338

Timeline

Multi-platform Systems Administrator

Trinitech Consulting Global Inc
11.2019 - Current

Sales/ Merchandiser

Peak Distribution Company
06.2015 - 06.2018

Bachelor of Science in Information System and Software Engineering -

Utah Valley University

Bachelor of Business Administration in Human Resource Management -

Valley View University

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JOHN AYENA