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Linux System Administrator/network Engineer Resume

SUMMARY:

Smart, driven and service - minded IT professional with experience in network engineering. Developed experience in the implementation and troubleshooting of network topologies including d Confidential, video and wireless networks, skilled in the use of methods and practices for troubleshooting, recovering adjusting, modifying, and improving IT networks. Adept in providing advice and assistance to customer, troubleshoot problems and providing support in a manner that minimizes interruptions in customers’ ability to carry out critical business activities. Focuses on continuous learning to further IT knowledge and career development.

AREAS OF EXPERTISE:

  • Network & System Support
  • Network System Design
  • Network System Integration
  • Network System Installation
  • Technology Solution Testing
  • RHEL5.x
  • 6.x7.x
  • CENTOS
  • UBUNTU
  • LVM
  • Kick-start
  • Netapp
  • Tape
  • Quality Assurance
  • Installation & Configuration
  • Troubleshooting
  • Sourcing & Procurement
  • Customer Service Management
  • VMWare (VSphere vCenter)
  • REHVM

TECHNICAL SKILLS:

Network Hardware: Cisco ISR 2800, 3800; Cisco ISR G2 2900, 3900, Cisco C Confidential lyst 3600, 3700

Layer 2 Switches: VLAN, VTP, 802.1q Trunking; STP, RSTP, PVST CDP HSRP, GLBP

IP Services: DNS, DHCP, NAT, Access List TCP/IP, DNS, DHCP, DNS, NAT, Access List

Layer 3 technologies and infrastructure: RIP, EIGRP, OSPF, BGP; IP subnetting, VLSM, IPv4

WAN technologies and security: HDLC, PPP, T1, T3, Frame Relay; VPN, IPsec, GRE, 3DES, AES

Network management and troubleshooting: SNMP, NetFlow, Syslog, TFTP, Solar winds; ICMP: traceroute, ping; Telnet SSH putty RDP; TACACS, Solar wind, Wireshark, PRTG, Xceedium, ForeScout

Operating systems: RHEL 5/6/7, Centos, Hardware: HP ProLiant, Blade servers, Dell R910, R710

Servers /Services:: NFS, SSH, Telnet, Apache, DNS Nslookup, Netstat, Nagios, TCP/IP and TCP, DUMP, LDAP, VI Editor, getdit, Apache, Remedy

PROFESSIONAL EXPERIENCE:

Linux System Administrator/Network Engineer

Confidential

  • Install, configure and manage server hardware and software.
  • Configure and manage TCP/IP networking on RHEL systems, perform software package installation, Upgrade using yum and rpm commands manage file systems using fdisk and LVM, apply system patches.
  • Familiar with LVM and expanding file systems
  • Install and configure Red Hat Enterprise Linux Servers in box Physical and Virtual Environment
  • Deploy virtual servers using templates and kick-start files.
  • Install and update packages using YUM and Red Hat Satellite, OS patches puppet.
  • Add new development user account, removing users, resetting user account in RHEL to allow new developer.
  • Configuration and management of local yum repository
  • Working understanding of Linux Systems administration
  • Manage firewall rules for new servers to enable communication & security using IPTABLES, Monitor and control disk space usage
  • Troubleshoot server with network issue, track system metrics and respond to system alerts, for example: uptime, capacity, backup, and security.
  • Provide hand-on system administration support for the development and test platforms.
  • Comfortable dealing with users with varying levels of IT knowledge.
  • Provide technical solutions to a wide range of monitoring problems and user requests through an established trouble ticketing system.
  • Ability to terminate and run basic network cabling
  • Remedy for ticket based IT Service Management Software.
  • Configure networks to Research, evaluate and direct the acquisition, installation, and testing of network hardware for voice, d Confidential and video, storage, storage networking, virtualization, compute, backups, synchronization, high-availability and disaster recovery
  • Troubleshoot services and applications through root cause analysis DNS, LDAP SSH, FTP HTTP
  • Ensure the stability and integrity of in-house voice, d Confidential, and video wireless network service by planning, designing and developing local area networks (LANs) and wide area networks (WANs).
  • Monitor and test network performance. Ensure that network meets agreed service levels through the collection, analysis and reporting of network performance d Confidential . Make recommendations for improved network optimization.
  • Perform network asset management, including maintenance of network component inventory and related documentation and technical specifications information.
  • Provide technical assistance and support to agency personnel, administrators, service providers and other contractors. Carry out timely and effective problem management activities.

Linux System Administrator/Network Engineer

Confidential

  • Configure NFS server and mount exported NFS resources at the client side and change root password on all servers from centralized puppet master server.
  • Update /etc/issue file for system notifications and warmings on user’s logins.
  • Setup secured password less SSH authentication on servers using SSH keys
  • Configure and manage TCP/IP networking on RHEL systems, perform software package installation, Upgrade using yum and rpm commands manage file systems using Fdisk and LVM.
  • Manage firewall rules for new servers to enable communication & security using IPTABLES, Monitor and control disk space usage.
  • Working understanding of Linux Systems administration.
  • Add new development user account, removing users, resetting user account in RHEL to allow new
  • Install and configure Red Hat Enterprise Linux Servers in box Physical and Virtual Environment.
  • Deploy virtual servers using templates and kick-start files.
  • Install and update packages using YUM and Red Hat Satellite, OS patches puppet.
  • Configuration and management of local yum repository
  • Monitor and control system processes using top, renice, kill etc. Conduct system performance tunning and capacity planning.
  • Manage file system rights and access.
  • Perform system logs administration to detect and resolve issues, configure NTP client on servers to Synchronized time zone with the NTP server. Resolve systems and process issues reported by Nagios
  • Document server baseline and procedures, took turns for 24/7 production support
  • Create custom file systems for developers and d Confidential base teams
  • Configure and troubleshoot network services including DNS, DHCP and Static IP’s
  • Perform YUM package installs
  • Monitor and control disk space usage
  • Experience in administering VMware Infrastructure Client 3.5 Vsphere 4.0
  • Experience in Creation and managing user account, security, rights. Disk space and process
  • Worked in close coordination with Network Engineers to ensure high levels of service to all users. Contributed to the maintenance of the computing environment by identifying network requirements, installing upgrades and monitoring and improving network performance.
  • Implemented and administered LAN, WAN and landscape, including routers, switches, firewalls, VPN concentrators, wireless, and other network hardware.
  • Defined protocols and setups of multiple routers within a WAN/LAN environment. Scheduled and conducted routine analyses of the system for performance tuning purposes.
  • Ensured reliable and on-going service by troubleshooting issues with network hardware and software applications, telephone and security systems.

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