Linux Systems Administrator Resume
Beltsville Maryland, UsA
TECHNICAL SKILLS
Operating Systems: VMWare ESXi 5x/6x; Confidential Virtual Box; Windows XP/7/8/10 Professional, Windows Server ; Linux (CentOS 6,7&8, RHEL 6,7&8); UNIX (Solaris 10&11)
Languages: Bash, Bourne, Korn shells, PHP, HTML
Hardware: Confidential ProLiant DL380 Gen8/9/10, Confidential PS - M4110, Confidential PowerEdge 3650
Storage/Backup Technologies: SAN, NAS, LVM, SVM, ZFS, Veeam, BackupExec, NetApp
Networking: TCP/IP, LAN/WAN, DNS, DHCP, LDAP, HTTP, SSH, AD
Security/Monitoring/ Databases: SSH, Sudo, RBAC, SE Linux, Firewall, SSL, Tripwire, Log watch, Nagios, MySQL, Confidential Informix, F5 Load Balancing, Chef, Service Now
Hands on Knowledge of: Jenkins, Ansible, LAMP, ITIL-ServiceNow, BigFix, CyberArk, Samba, Apache, Dockers, PHP, Kubernetes
Extra: Great team player (enjoy working with others), fast learner (eager to learn new skills and technologies) focused and dedicated to complete assigned task/projects.
PROFESSIONAL EXPERIENCE
Linux Systems Administrator
Confidential
Responsibilities:
- Build and Configure Windows 2016 Server, Centos 7 and RHEL 7 Servers from scratch.
- Set up Client-to-server Network.
- Configure file and print sharing in Windows.
- Fix bad IP stack in Windows and Centos servers.
- Install anti-malware applications to Windows 10 NOS and Windows servers
- Configure RDP for Windows NOS systems. Open firewall port and bridge system.
- Configure and setup Confidential Virtual Box, Putty and Winscp.
- Educate and train clients as required.
- Introduce new software and technology as required.
- Introduce servers to the network. Set up DNS server, assign static IP addresses to required systems.
- Troubleshoot and fix network related issues.
- Support software installation in customer's deployment environment.
- Install web applications and Distribute Database Cluster solution in Centos & as per installation procedure.
- Identify and connect the SNMP enables devices in the network.
- Debug installation errors and fix if any error occur with the support of Accord Global Solution team in India.
- Collect the log files and share to Accord Global Technology Solution team in India for debugging.
- Troubleshoot, identify and fix complex software related issues.
- Security and system management, monitoring, file security, role based access, permission attributes and system hardening in Centos 7 and RHEL 7 servers.
- Package Management in Centos 7 & RHEL 7 servers.
- Configure a local Repo in Centos 7 server.
- Disk and Swap Management in Centos 7 & RHEL 7 servers.
Network Administrator
Confidential
Responsibilities:
- Primary responsibility for setup, installation, integration, monitoring, documentation, and maintenance of all Linux-based systems in a centralized IT environment, including, but not limited to; Jenzabar ERP, web, VMware, monitoring, and email.
- In collaboration with colleagues, develop strategies for effective use of cloud technologies, disaster recovery, and business continuity.
- Provide escalation- level technical support and system engineering for all Linux-based platforms.
- Configure and co-manage VMWare vSphere virtual server environments.
- Configure and co-manage iSCSI-based network storage solutions.
- In collaboration with colleagues to develop strategies for effective use of cloud technologies, disaster recovery, and business continuity.
- Creating documentation resources to aid in future troubleshooting issues, to interact with users and business partners to design solutions for current and future business problems including cloud Migration solutions.
- Installation and Configuration of the APACHE web Server on Linux platforms troubleshoot and access log files for errors and web access traffic.
- Setting up, configuring, and troubleshooting TCP/IP, DHCP, DNS; NFS, CIFS, and Samba servers in a multiplatform LAN.
- Monitoring and log management on UNIX, Linux, and Windows servers, including processes, crash and swap management, and performance tuning.
- Work closely with IT staff on integration of Linux systems into a MS Windows Active Directory environment.
- Work with Windows System Administrator on centralized system administration responsibilities, including support of MS Windows servers and Active Directory services.
- IT support representative, build, configure, provision, and maintain servers designated for telecommunication development and production analytics.
Unix/Linux System Administrator
Confidential, Beltsville, MARYLAND, USA
Responsibilities:
- Provide architectural support and high-level analysis for Linux/UNIX systems and components, including Red Hat Enterprise Linux (RHEL), Confidential Solaris, and associated hypervisors.
- Configure, patch, and monitor Linux/UNIX physical or virtual servers and troubleshoot problems.
- Install, configure, and maintain server operating systems and repair server hardware
- Assists in developing recommendations for improvements and the development of technical standards
- Provides tier 2/3 support to investigate and resolve problems, inefficiencies, and performance issues which will require shift work or after hours call in to meet customer SLAs.
- Creating documentation resources to aid in future troubleshooting issues, to interact with users and business partners to design solutions for current and future business problems including cloud Migration solutions.
- Participate in daily scrum to improve system performance, and automation capabilities.
- Installation and configuration of Team Foundation Server (TFS) and Veritas Storage Foundation Server
- Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux and Solaris.
- Writing shell scripts to automate the administrative tasks and management using cron.
- Experience in installation, configuration, backup, recovery, maintenance, and support of Several Unix/Linux and Windows Servers.
- Experience in configuration of NIS, NIS+, LDAP, DNS, DHCP, NFS, LDAP, Automate, Sendmail, FTP, remote access, Active Directory, Security management and Security trouble shooting skills.
- Analyze, troubleshooting, and resolve RHEL and Server HW, Network problems in a logistic Server environment.
- Expertise in adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
- Conducted AIX / Linux System security and auditing and did Performance Monitoring and Kernel Tuning.
- Installed RHEL using kickstart.
- Deployment of various NCI web applications using Apache, Tomcat and Jboss applications.
- Providing support for NCI web applications, by upgrading, and restarting containers that are running slow.
- Created, cloned Linux Virtual Machines, templates using VMware Virtual Client and migrating servers between ESX hosts.
- Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
- Performed RPM and YUM package installations, patch and server management.
- Installed and configured Logical Volume Manager - LVM and RAID.
- Documented all setup procedures and System related Policies (SOP’s).
- Provided 24/7 technical support to Production and development environments.
- Administrated DHCP, DNS, and NFS services in Linux.
- Created and maintained user’s accounts, profiles, security, rights disk space and process monitoring.
- Provided technical support by troubleshooting Day - to-Day issues with various Servers on different platforms.
- Installing, configuring and updating puppets master and puppets agents
- In collaboration with colleagues to develop strategies for effective use of cloud technologies, disaster recovery, and business continuity.
- Create new Ansible YAML Play-books, Roles, and bash shell scripts for application deployments. Provide Apache webserver/website administration and integration support with application teams to ensure that the hosting platform can adequately and securely support the application configuration and workload.
Windows Systems Engineer / Customer Care Specialist
Confidential
Responsibilities:
- Build Windows/Linux servers and introduce the systems to the network.
- Experience in building and configuring VMware host and guest systems on Confidential Virtual Box, as well as bridging the Guest VMware systems to communicate with other physical LAN systems.
- Introduce cloud technologies to the network.
- Create and launch AWS RHEL6, 7, &8 Windows 2008/2012 instances.
- Responsible for assigning hostnames, static IP addresses, default gateway addresses and DNS addresses to Windows 2008 Servers so as to introduce them to the network.
- Use the “dcpromo” tool to configure DNS, Active Directory as well as to promote standard Windows 2008 servers to domain controllers.
- Windows 7, 8 and 10 NOS imaging and configurations and software deployment.
- Configure Windows systems for remote access.
- 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 a Windows NOS to enable resource sharing.
