Manager Active Directory

SUMMARY:

Over * years of experience specialized in System Administration working on Redhat Enterprise Linux, Solaris, AIX, Suse Linux, Cent OS, OEL and Windows environments.

Experience in administering Solaris & Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris & Linux.

Experience in Installing, upgrading and configuring Red Hat Linux 3.x, 4.x, 5.x using Kickstart Servers and Interactive Installation.

Worked with Database administrators to tune kernel for Oracle installations.

Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.

Experience in installing, configuring, and implementing the RAID technologies using various tools like VxVM and Solaris volume manager.

Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hat Linux.

Experience in Implementing Continuous Delivery pipeline with, Ant, Jenkins and AWS.

Experience in working on source controller tools like Subversion (SVN), CVS, IBM Clear case, Perforce, and GIT.

Proficient with Cloud services like Open Stack and Amazon Web Services.

Installation and upgradation of Packages and Patches configuration mgmt., version control, service pack. & reviewing connectivity issue regarding security problem.

Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, and postfix, send mail, ftp, remote access, security management and Security trouble shooting skills.

Experience on Webservers such as I Planet Webserver 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x & Apache Server 1.x, 2.x and integrating them with WebLogic 10.x servers.

Experience in administering VMware Infrastructure Client 3.5 and VSphere 4.0.

Experience in Installation of Oracle and MYSQL.

Experience working on several Docker Components like Docker Engine, Hub, Machine, creating Docker images, Compose, Docker Registry and handling multiple images primarily for middleware installations and domain configurations.

Experience in using AWS including EC2, Auto-Scaling in launching EC2 instances, Elastic Load Balancer, Elastic Beanstalk, S3, Glacier, Cloud Front, RDS, VPC, Route53, Cloud Watch, Cloud Formation, IAM, SNS.

Expertise in scripting for automation, and monitoring using Shell, Opsview, Python & Perl scripts.

Having good Experience in Chef and Puppet for Deployment on Multiple platforms.

Experience in using Bug tracking tools like JIRA, Remedy, HP Quality Center and IBM Clear Quest.

Team player with good management, analytical, communication and interpersonal skills.

Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.

Experience in Sun Solaris 10(Creation of Zones, Service Management Facilities, Virtualization, Container based).

Experience working in SAN environment like EMC Symmetric DMX3, DMX4 and Clarion CX3 series arrays.

Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.

Installation and configuration of Jobs, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.

TECHNICAL SKILLS

Operating System: RHEL 3/4/5/6/7, Solaris Release 2.10/2.9/2.8/2.7, IBM-AIX 5.X, Windows 98, Windows 2000 and NT.

Hardware: HP ProLiant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15K,E25k, sun ultra’s, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra-thin client) SUN Desktops (SPARC 10,5), DMX# and DMX4 storage Arrays, F5.

Software: Veritas volume manager 3.5/4/5, Veritas File System, Veritas Cluster server 305, Veritas NetBackup 6.0, MS-office/MS-project.

Web/Application Server: Tomcat, Apache, Jobs, WebLogic

Database DB@, Oracle, SQL server

Network Protocols: DHCP, DIG, DNS, SNMP, Ethernet, IOS< net stat, NFS, NIS, lookup, RIP, OSPF, BGP, TCP/IP, and tcpdump.

Cluster Environment: Sun Cluster servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and shell Programming, JSP, Python.

PROFESSIONAL SUMMARY

Client: Dollar General, Nashville, TN May 2017 to June 2018

Role: Sr. Linux Administrator

Responsibilities

Installation, Configuration, up gradation and administration of Sun Solaris, Red Hat Linux.

User account management and support.

Jumpstart & Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.

Network traffic control, IPsec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.

Responsible for configuring and managing Squid server in Linux.

Configuration and Administration of NIS environment.

Managing file systems and disk management using Solstice Disk suite.

Involved in Installing and configuring of NFS.

Trouble shooting the system and end user issues.

Responsible for configuring real time backup of web servers.

Log file was managed for troubleshooting and probable errors.

Responsible for reviewing all open tickets, resolve and close any existing tickets.

Client: Nielsen, Tamfa,FL Sep 2015 to May 2017

Linux Administrator

Responsibilities:

Installed, configured, troubleshoot, secured and supported Red Hat 5/6, Cent 3/4/5 and SUSE Linux9/10 servers and product servers.

Worked on installation and configuration of Tomcat

Creating, Mounting and Troubleshooting Network file system on different OS platforms.

Experience installing and configuring SSH (secure shell) encryption to access on Ubuntu and red Hat Linux securely

Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing

Configure and maintain windows 2000 server that runs DHCP and active directory services.

Implemented system policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring, and back up the data using BACKUP devices.

Extensive use of bash shell for scripting.

Installation and configuration of Samba Server.

DNS server configuration and maintenance.

Configured NFS and autofs clients for file sharing on clients.

Client: Little Fuse, Chicago, IL Oct 2013 to Sep 2015 Role: Systems Administrator

Responsibilities

Installation and configuring of SUN Solaris and Linux servers.

Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using Kick Start server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.

Incident management for Unix Servers (Solaris, Linux).

Installed and configured Solaris 10 servers with Zones and containers with SUN ZFS.

Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.

Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.

Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and WebLogic application server.

Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.

Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.

Expertise in Linux backup/restore with tar including disk partitioning and formatting.

Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.

Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.

Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.

Involved in development, user acceptance, and performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers,SAN Switches, Apache, Tomcat WebSphere, Weblogic application server.

Client: ILabs Enterprise Services Pvt. Ltd, India Sep 2011 to Aug 2013 Role: Linux Administrator

Responsibilities

Installation and administration of RHEL 4.0/5.0, AIX 5.3/6.1 and Suse 10.x.

Configured kick start server and updating/applying patches to the servers using Redhat Satellite server.

Remote system administration using tools like SSH, Telnet, and Rlogin.

Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.

Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 5.0 and migrating servers between ESX hosts.

Applied appropriate support packages/patches to maintain system integrity.

Implemented multi-tier application provisioning in Open Stack cloud, integrating it with Puppet.

Designed and implemented scalable, secure cloud architecture based on Amazon Web Services.

Deployed Puppet, Puppet dashboard for configuration management to existing infrastructure and used Puppet to automate Configuration management.

Implemented the setup for Master save architecture to improve the Performance of Jenkins.

Used Jenkins for continuous Integration and deployment into Tomcat Application Server.

Zones, LDOMs, ZFS filesystem Sun Solaris 10 Servers.

Management and monitoring of various services using Service Management Facility and Service Administration.

Installing, configuring Veritas NetBackup 6.5 on Linux, Solaris servers, creating backup polices.

Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.

Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.

Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.

Configuring, adding Oracle ASM disks to database server. Creating, managing raw volumes using LVM.

Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.

Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.

Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.

Environment: Solaris 2.9 / 2.10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, Sun Fire V440/880, DMX 3 & DMX4, Puppet, Chef, Jenkins, GIT, Python, AWS, Open stack, Site minder, Sonic 7.0, VxFS 4.1, VxVM 4.1, SVM.

Birla Sun Life Insurance - Hyderabad, India Aug 2009 to Sep 2011

Linux Administrator

Responsibilities

Experience as Red Hat Enterprise Linux Systems Administrator and performed support role for applications on mission critical Enterprise Networks and Multi-server environment.

Experience in Administration, implementation and support of OS RHEL 5/6.

Experience in the kick-start installations, support, configuration and maintenance of RHEL 5.5, and x86-64 Servers under heterogeneous environments.

Experience on patches installation, patch upgrades and packages installation on Red Hat Linux servers by using RPM & YUM.

Experience in providing day-to-day user administration like adding/deleting users in local and global groups on Red Hat Linux platform and managing user's queries.

Created Puppet Master and Agents machines in the production environment for deploying, updating the software in automation process.

Helped in creating the manifest files for deploying the mail software across multiple agents in the production environment.

Installed Apache/Tomcat Server.

Installed VMware vSphere client software which is a part of vSphere suite on a client machine to monitor the virtual hosts.

Knowledge in configuration and managing Linux Virtual Machines under VMware 5.x.

Performed regular disk management like adding / replacing hot swappable drives on existing server's workstations, partitioning per requirements, creating new file systems or growing existing one over the hard drives and managing file systems.

Configured distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.

Experience with the installation & configuration of volume management using VERITAS Volume Manager, VxFS file system.

Worked with Backup Team to Configure the Master and Client Backup Servers using VERITAS Net Backup and Recovery from tapes using ufsdump, ufsrestore, and tar and cpio file system administration.

Performed Network troubleshooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.

Developed automated processes that run daily to check disk usage and perform cleanup of file systems on UNIX environments using shell scripting and CRON.

Installed and configured Web hosting administration HTTP, FTP, SSH, & RSH.

Monitored the hosts and networks using SAR, Iostat, VMstat, MPstat and other tools.

Developed UNIX shell scripts using Shell Scripting.

Environment: RHEL 5/6, RPM & YUM Server, HTTP, FTP, SSH, RSH, Cron, UNIX, Puppet Enterprise 2016.1.x, VERITAS Volume Manager, VxFS file system, Apache/Tomcat Server, PHP, NFS & VMware

EDUCATIONAL

B.Tech, CMR Engineering College of science and technology, Hyderabad.

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