SUMMARY:

• Over 8 years of experience and specialization in System Administration working in RedHat Linux,
• Experience in Installation, Configuration, Maintenance of Linux
• Experience upgrading and configuring RedHat Linux 5.x, 6.x, 7.x using
• Kickstart Servers and Interactive Installation.
• Experience working on P550, P560, P595, P570, P575.P595.P770.P870
• Migration of AIX OS from 5.1, 5.2 to 5.3 and 5.3 to 6.1, 6.1 to 7.1, 71 to 7.2 on pSeries servers.
• Experience working Red Hat GFS and VERITAS Cluster File systems
• Troubleshooting of Veritas Volume manager and Sun solaris manager.
• Worked as AIX System Admin with IBM P - series Model servers in an HACMP environment.
• Worked with Database Administrator to tune kernel for Oracle installations.
• Experience in Creation and managing user accounts, security, rights. Disk space and process monitoring in RedHat Linux *Experience in configuration of NFS.
• DNS, remote access management and security troubleshooting skills.
• Experience in administering VMware Infrastructure Client 3.5 Vsphere 4.0, 5.x
• & 6.0 and Pxeboot -Experience in administering RedHat Enterprise Virtual
• Environment (RHEV)
• Experience in scheduling jobs and administrative task using crontab. -Creating
• Linux Virtual Machines using VMware Center.
• Strong written and oral communication skills-Leadership Skills-Excellent

TECHNICAL SKILLS:

Platforms: Red Hat (RHEL 5, 6 and 7). CentOS 6 and 7 X86/X64 platforms, Windows 2003, 2008,2012, Server, Windows 7, VMware 5, 6, KVM

Hardware: Dell PowerEdge R710, R420, M91, R520, DL, 360,380

Languages: Bash, Perl, HTML Ruby

Software: VMware, LDAP, Active Directory, Networker, BMC Remedy 7, Symantec NetBackup, VPN, MySQL Database, Apache, SMTP

EXPERIENCE:

Confidential

Responsibilities:

• Expert in Installation and Configuration of Linux server and management
• Expertise in establishment and configuration of Linux server and virtual environments
• Installed and configure Networker Backup. Indexing and scanning of tapes for backup
• Experience designing, implementing, maintaining and optimizing Disk Management utility,
• Configure and maintain user authentication using LDAP
• Performing needs assessment and patch management for Linux Enterprise Systems.
• Infrastructure hardening and Security Administration & Installation on multiple Systems
• Working knowledge with shell scripting using Bourne Again Shell (BASH) In-depth knowledge of Network, DNS, NFS, DHCP, NFS, FTP
• Installed and configured Symantec VERITAS NetBackup master, media and client Servers.
• Provide the needs assessment, Systems administration and patch management
• Perform security management using Stateful and Stateless firewall (Security group and ACL)
• Working knowledge with SAN, NAS (Disk Array RAID)
• Experience using YUM and RPM for package management
• RHEL virtualization with Kernel-based Virtual Machine (KVM)
• Virtualization (VMware, Xen, Hypervisor)
• Exposure to security concepts / best practices
• Experience managing full application stacks from the OS up through custom applications
• Troubleshooting user logins using various remote login utilities. Proficient in troubleshooting Systems.

Linux System Administrator

Confidential, Baltimore, MD

Responsibilities:

• Designs Amazon Web Services architecture for new cloud computing System or existing Systems migrating to cloud architectures.
• Expert in provision of EC2, S3, Glacier, Route53, VPC, and SecurityGroups
• Expertise in establishment and configuration of Linux server and virtual environments
• Provide the needs assessment, Systems administration and patch management
• Perform security management using Stateful and Stateless firewall (Security groups and ACL)
• Automate managing of System using Ansible.
• Migration of AIX Systems from p4, p5 to p6, p6 to p7, p7 to p8 hardware.
• Experience working in both virtualized and cloud environments across technologies such as Hyper-V, VMWare and AWS
• Experience designing, maintaining and optimizing AWS S3 and Disk Management utility LVM.
• Infrastructure hardening and Security Administration & Installation on multiple Systems
• Provide deployment for scalable applications to container based technologies such as Docker
• Perform integration of new Systems into enterprise environments.
• Querying and modifying items in directory service providers like Active Directory and LDAP environments.
• Automation experience using languages such as Python or Bash shell.
• Possessed oral and written communication skills with a keen sense of customer service.
• Expert in problem solving and troubleshooting skills.
• Working knowledge with shell scripting using Bourne Again Shell (BASH)
• In-depth knowledge of Network protocols and security, DNS, NFS, DHCP, NFS, FTP.
• Working knowledge with SAN, NAS (Disk Array RAID)
• Experience using YUM and RPM for package management
• Experience managing full application stacks from the OS up through custom applications
• Troubleshooting user logins using various remote login utilities.
• Monitored client disk quotas & disk space usage. Systems performance monitoring and tuning.
• Creating and Updating of the department's Standard of Operation (SOP).

Linux System Administrator

Confidential, New Orleans, LA

Responsibilities:

• Installation and Configuration of Red Hat Linux
• Configuration and maintenance of LVM
• Experience in Redhat package management (rpm) and YUM installations.
• Installing and configuration of Apache.
• Creating and Managing of User Accounts, Groups and Permissions
• Knowledge in Monitoring and Performance tuning of RHEL Servers.
• File compression and decompression such as tar, gzip, etc.
• Installing and Configuration of trusted connections in SSH
• Extensively worked on configuring of NFS, Auto mounts, FTP Server
• Knowledge to configure LDAP.
• Knowledge in LVM and SWAP.
• User management & Privilege issue.
• Monitoring CPU, Memory, I/O Subsystems, and network utilization.
• Providing remote access utilities and configuring various services.
• Configuration and process troubleshooting of various application such as web applications, server -client applications.
• Monitoring CPU, Memory, Disk.
• Manage Disk and File System.
• Installation and configuration of Linux operating System.
• Process administration and management like monitoring, start/stop/kill in various processes.
• Managing ACL's& special file permissions, Creating File System,
• Configuring SAMBA and accessing windows share using SAMBA.
• Installation and Configuration of ISCSI Target and initiator.
• Installation and Configuration of SSH, FTP.
• Linux kick start installation and Network Installation (NFS, FTP, and HTTP).
• Configuring DHCP on client machines.
• Provisioning and configuring of RHEL 6&7.
• Deploying configuration of NFS, SAMBA, and AutoFS (NIS & DNS) Servers.
• Install, update and upgrade the packages using rpm, YUM Package managements.
• Installation and configurations of Apache Web Server in RHEL.
• Configuration of Remote Access utilities, providing user access control on services like ftp, SSH and port status with telnet, NC.
• Monitoring the Servers performance and health checkup.
• Scheduling the Cron jobs and Basic knowledge on RYSLOG, NTP and LDAP.
• Knowledge on DevOps concepts such as version control System using GIT, continuous integration using Jenkins, continuous deployment using puppet.
• Knowledge on containerizations like Docker.
• Knowledge on monitoring tools like Nagios.
• Basic knowledge on creating and maintaining Database.
• Responsible for creating, modifying and deleting users, groups and assigning the permissions to users and groups.
• Handling and response to the mails, such as providing information to users.
• Monitoring Systems resources, logs, disk usage, scheduling and monitoring backups and restore.
• According to the SLA and ticket severity, providing permanent/ temporary solution to the requestor.
• Troubleshooting the errors and remediate them on time.

Linux/Unix System Administrator

Confidential, Hagerstown, MD

Responsibilities:

• Responsible for day to day operations of company infrastructure
• Installing and configuring servers creating and maintaining user accounts and groups
• Backing up user’s data
• Worked as AIX System Admin with IBM P-series Model servers in an HACMP environment.
• Experience with Red Hat build methodologies, performance tuning, memory management, server maintenance and troubleshooting
• Wrote shell scripts and troubleshoot scripts for installation and automation
• Used Ansible as Configuration Management tool to automate repetitive tasks (maintenance & software updates)
• Logical Volume Management (LVM) of AIX.
• Transfer file across the Systems on the network using FTP, SCP, WinSCP and Rsync commands
• Setup and configured Apache in Redhat servers
• Configure FIREWALL rules and hardening Linux Systems for Systems security
• Configuring and Administrating Cron Jobs
• Configured logical volumes for file System growth needs using LVM commands
• Maintained availability, increased capacity & performance of production machines
• Created new slices, mounted new file Systems and un-mounted file System
• Configured Nagios monitoring tools, maintaining and monitoring 4000+ System located in four different sites

Environment: RHEL 6/7, Windows 2008/2012 servers, SQL, Ansible, VMware ESXi, JIRA, GIT, Apache, Shell Scripting.